The end of Clipped Blades?
10-13-2007, 04:18 PM
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The end of Clipped Blades?
Once again I started into a thread that was to bring lots of no cost mods to the collective and I got entangled in my own agenda. So I'll move the ongoing discussion of the clipped blades to a new post. If it dies again, it will stay that way. If I do get all of the issues answered, I'll let ya know. For now, anyone who is following this clipped blade thread can move those thoughts here so we don't constipate the freebe mods thread. That's a great thread and I'll keep an eye on it for my own CX!
Back to the clipped blade issue.
My gut feeling is that the clipped blades are properly addressing some of the frustrations that we keep tripping over. Blade flex is bad. Easily broken blades are bad. Clack from blade flex and long blades is bad. The clipped blades address all of that but we are getting into problem areas that I hadn't counted on. Maybe it's time to run a cost / benefit analysis.
On the benefit side;
Blade flex is reduced for more crisp handling.
Blades are far more durable.
Coning is reduced.
Coning causes clack and that is reduced along with the coning.
Short blades are lighter weight.
On the cost side;
There is less lift.
Control is more difficult.
Built in stability is reduced.
Flight (not hover) is more difficult.
Fast planes use speed in lieu of surface area. Faster air over a lift surface has more lift. That's my reason for wanting a larger pinion on the motors. Lift is marginal because the motors won't spin the blades fast enough. The lift is available but we can't get to it as the CX is configured. Faster rotor speed brings stability. Maybe this whole thing works but we aren't impressed because we aren't done yet.
So, among the guys working with enhanced performance mods that are causing us uncertainty about the benefits, how many of us are reasonably good single rotor pilots? Try this assumption. Suppose someone comes up with a set of mods that give less stable hover in exchange for excellent directional flight, ability to handle brezes well, good lift, low weight, no pendulum effect, no TBE. If all of those advantages are present, but the heli now flies EXACTLY like a single rotor, we would discount that heli as a poor design because most of us cant fly it.
You know that I am learning to fly a single rotor fixed pitch. I believe that when we get all of the improvements that we are working toward, the heli will in fact fly more like a single rotor than a coaxial helicopter. And I can't fly a single rotor worth crap - but I am getting better daily. Things that I found unstable about the CX last month are no longer a problem. I'm flying the CX like a single rotor. With a very light flybar and clipped rotors, if you can't predict what the heli is going to do, you'll lose it. If you fly it by reacting to what it's doing, you are too late to catch it.
Any thoughts are appreciated. Until I can get more drive power this is all a collection of thoughts. Am I on the right track?
Back to the clipped blade issue.
My gut feeling is that the clipped blades are properly addressing some of the frustrations that we keep tripping over. Blade flex is bad. Easily broken blades are bad. Clack from blade flex and long blades is bad. The clipped blades address all of that but we are getting into problem areas that I hadn't counted on. Maybe it's time to run a cost / benefit analysis.
On the benefit side;
Blade flex is reduced for more crisp handling.
Blades are far more durable.
Coning is reduced.
Coning causes clack and that is reduced along with the coning.
Short blades are lighter weight.
On the cost side;
There is less lift.
Control is more difficult.
Built in stability is reduced.
Flight (not hover) is more difficult.
Fast planes use speed in lieu of surface area. Faster air over a lift surface has more lift. That's my reason for wanting a larger pinion on the motors. Lift is marginal because the motors won't spin the blades fast enough. The lift is available but we can't get to it as the CX is configured. Faster rotor speed brings stability. Maybe this whole thing works but we aren't impressed because we aren't done yet.
So, among the guys working with enhanced performance mods that are causing us uncertainty about the benefits, how many of us are reasonably good single rotor pilots? Try this assumption. Suppose someone comes up with a set of mods that give less stable hover in exchange for excellent directional flight, ability to handle brezes well, good lift, low weight, no pendulum effect, no TBE. If all of those advantages are present, but the heli now flies EXACTLY like a single rotor, we would discount that heli as a poor design because most of us cant fly it.
You know that I am learning to fly a single rotor fixed pitch. I believe that when we get all of the improvements that we are working toward, the heli will in fact fly more like a single rotor than a coaxial helicopter. And I can't fly a single rotor worth crap - but I am getting better daily. Things that I found unstable about the CX last month are no longer a problem. I'm flying the CX like a single rotor. With a very light flybar and clipped rotors, if you can't predict what the heli is going to do, you'll lose it. If you fly it by reacting to what it's doing, you are too late to catch it.
Any thoughts are appreciated. Until I can get more drive power this is all a collection of thoughts. Am I on the right track?
10-14-2007, 11:34 AM
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RE: The end of Clipped Blades?
hey solo hows it going? ive recently decided that selling my cx-2 wasnt a good idea as i miss flying it now. so im going to be selling my moddified rc18b and buying another one soon.
i think that using shorter rotor blades would be beneficial to it in the sense that there will be less blade clack. however when i had had my cx-2 i never experienced blade clack because i had both the upper and lower cnc rotor heads. i think its because the shafts that the blades slide onto on the stock heads are plastic and thus allow for slight amounts of play. are you using the cnc heads? if not you might want to try them out.
now onto the topic of clipped blades. as you said clipping the blades is obviously going to reduce the much needed lift. some options that might help to compensate this loss of lift could be:
1. possibly put the heli on a "diet". find any un-needed weight to decrease the amount of lift needed to get it airborne, however the side effect of dropping weight might also cause instability in wind conditions.
2. increase lift by increasing the surface area of the blade. instead of using a longer stock blade configuration what about somehow adding more surface area to the trailing edge of the blade. for testing this theory you could possibly use scotch tape along the trailing edge and fold it over from top egde to bottom edge. balancing will come into play as well but i think it would be worth trying.
3. increasing power output as you said would be another good option. however the mounting point for the motor isnt adjustable from what i remember so if you add a larger pinion gear then theres the issue of setting the gear mess and not having a way to adjust it. it would be possible to make it adjustable using a fine tip dremel attachment. also it would be worth while to see what exactly the rx is capable of handling for a peak power input. using a larger voltage battery would give significant power output provided that the rx could handle it.
4. instead of clipping the blades what about adding some type of re-inforcement to the blades to help reduce the amount of flex and coning they have? this might sound like a cob job idea, but possibly a stir stick along the length of the blade for added strength.
i hope that this is somewhat helpful in your quest. id like to be able to try this out first hand but at the moment im without a cx-2. as soon as i get another one ill be trying this out for myself, good luck and keep me up to date, chris
i think that using shorter rotor blades would be beneficial to it in the sense that there will be less blade clack. however when i had had my cx-2 i never experienced blade clack because i had both the upper and lower cnc rotor heads. i think its because the shafts that the blades slide onto on the stock heads are plastic and thus allow for slight amounts of play. are you using the cnc heads? if not you might want to try them out.
now onto the topic of clipped blades. as you said clipping the blades is obviously going to reduce the much needed lift. some options that might help to compensate this loss of lift could be:
1. possibly put the heli on a "diet". find any un-needed weight to decrease the amount of lift needed to get it airborne, however the side effect of dropping weight might also cause instability in wind conditions.
2. increase lift by increasing the surface area of the blade. instead of using a longer stock blade configuration what about somehow adding more surface area to the trailing edge of the blade. for testing this theory you could possibly use scotch tape along the trailing edge and fold it over from top egde to bottom edge. balancing will come into play as well but i think it would be worth trying.
3. increasing power output as you said would be another good option. however the mounting point for the motor isnt adjustable from what i remember so if you add a larger pinion gear then theres the issue of setting the gear mess and not having a way to adjust it. it would be possible to make it adjustable using a fine tip dremel attachment. also it would be worth while to see what exactly the rx is capable of handling for a peak power input. using a larger voltage battery would give significant power output provided that the rx could handle it.
4. instead of clipping the blades what about adding some type of re-inforcement to the blades to help reduce the amount of flex and coning they have? this might sound like a cob job idea, but possibly a stir stick along the length of the blade for added strength.
i hope that this is somewhat helpful in your quest. id like to be able to try this out first hand but at the moment im without a cx-2. as soon as i get another one ill be trying this out for myself, good luck and keep me up to date, chris
10-14-2007, 12:13 PM
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RE: The end of Clipped Blades?
Excellent posts and good food for thought! I too am learning how to fly a single-rotor Heli. Granted, I am learning on a simulator and learning a CCPM Heli, but it has definitely made me a better CX2 pilot already. I think that we should form a focus group 
to put together a list of demands / suggestions to submit to E-Flite for what we would like to see in the CX3! 
CrazyChris!!!! Glens Falls?!?!? My wife and I used to live in Ballston Spa! We LOVED living up there. Lived there for 4 years. It it wouldn't have been for family in Michigan, we probably would have moved back there! I have very fond memories of boating on Lake George and traveling in the Adirondack mountains.
to put together a list of demands / suggestions to submit to E-Flite for what we would like to see in the CX3! CrazyChris!!!! Glens Falls?!?!? My wife and I used to live in Ballston Spa! We LOVED living up there. Lived there for 4 years. It it wouldn't have been for family in Michigan, we probably would have moved back there! I have very fond memories of boating on Lake George and traveling in the Adirondack mountains.
10-14-2007, 01:12 PM
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RE: The end of Clipped Blades?
blade slap can be stoped with the right parts CRYODRIVE has done it right !!!! i did some bata testing for them i think bata testing is still going on ... there drive realy works killer out door wind no slap .... also i did there 3 cell conversion bata testing ... WOW!!! killer power mass rpm works like a hole new heli ... flys just as well and can do just about anything my cp can do well no not the upside down stuff but all the rest of it ... fast power and handels wind soooo much better......
any way just tossing this info out there as i am sure there are peps out there that want to fly out door in some wind from time to time and or want to do fast flight and have there twin 180's helis do as a single fixxed pitch heli .....
i haved tryed ALL the after market stuff out there the blade slap thing is best fixxed hands down with the CRYODRIVE as it is the only system that lets me do hard and abrup inputs on my dx-7 with NO blade slap unlike the 2 common fixxs out there that clame 90% less or even 99% less ... the CRYODRIVE stoped !!!! blade slap for good..... and is by way far the strongest drive ever .. bash after bash no bent rod or tube ... now that is soooo nice!!!! ABOUT DAM TIME SOME ONE MADE IT RIGHT !!!!!
any way have a great day of flying.......
any way just tossing this info out there as i am sure there are peps out there that want to fly out door in some wind from time to time and or want to do fast flight and have there twin 180's helis do as a single fixxed pitch heli .....
i haved tryed ALL the after market stuff out there the blade slap thing is best fixxed hands down with the CRYODRIVE as it is the only system that lets me do hard and abrup inputs on my dx-7 with NO blade slap unlike the 2 common fixxs out there that clame 90% less or even 99% less ... the CRYODRIVE stoped !!!! blade slap for good..... and is by way far the strongest drive ever .. bash after bash no bent rod or tube ... now that is soooo nice!!!! ABOUT DAM TIME SOME ONE MADE IT RIGHT !!!!!
any way have a great day of flying.......
10-14-2007, 01:51 PM
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RE: The end of Clipped Blades?
Good input...I to run the 3-Cell frequently in mine also, more power, better control....a stall ? What's that ? Comes out of it like you wouldn't believe... Shortened flybar...1 blade clack in 6 weeks...
Solo: I'am putting up a response of my clipped blade experiment...Give me 5 minutes.....Jeff
Solo: I'am putting up a response of my clipped blade experiment...Give me 5 minutes.....Jeff
10-14-2007, 02:24 PM
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RE: The end of Clipped Blades?
Solo: And to others who are interested in the 'clipped wing' experiment...I started this experiment to see how this particular indoor heli would perform outside with clipped wings. Purely for experimentation on cause and effect, I started by cutting 5mm from all blades...I was only in the pre-limanary phases but had to discontinue any more practices with the experiment...
The reasoning for a pause is I just received Boomtowns M-3 boom for my heli...I have still yet to fly it outside, because all you here on RCU keep distracting me, and progress is slow....! I don't like to "mix" two different effects at the same time, one being clipped blades, the other being a different flight response from going from a plastic rear, to a carbon boom. I wouldn't be able to tell what the heli's differences in flight would be coming from having the two interlaced together. So, I took my clipped wings off, and now will study how my heli reacts with the boom, then understanding, and setting it up from the change, I will resume from the inputs of this thread being a possible help.
I film "test flights" for study later on how the heli reacts in different ways...I'am posting a short flight of what I thought I was the one only going to be viewing it...(Thank goodness I wasn't talking to myself...lol..) however, since I'am pulling out for awhile on the experiment, I thought it would only be fair to then share this maybe so others could just see, how the heli reacted on my first attempt at it...Do note...I took it to the skies, being in a cautionary state, as I had no idea what to expect...Judge yourself what you would think...The wind was picking up, so I had to use the heavy 3-Cell for the additional weight...Good or Bad for clipped blades? Couldn't tell ya, A lot of variables were in place, including a light breeze that kept pushing through...I did notice when accelerating however, and coming back down with the heli, it posed to be a slighter challenge than normal. Forward flight ? Didn't get that far, as you can also see in the vid. I did notice "banking" abilities were different also, In a later flight that I did not film...
The only "upgrades" on the heli is the aluminum on the upper rotor head, bearing cup, lower rotor head, and swash, In the video...The rest stock...
In the video, the heli with the 3-Cell weighed 242 grams...Not sure if extra voltage is good for the clipped wings...Weight ? I would say no...But I can't say...I didn't have the opportunity to put a 2-Cell in for experimentation..
Now that I have the carbon boom, the heli is at a dry weight of 175 grams...with my 2-Cells in there it puts it at 219 grams... 8 grams lighter than stock...so I'am still interested in seeing the effect of a lighter heli with the clipped wings, but first I have to re-learn how it reacts since the new change. And then proceed, to see if it produces a negative effect, or a positive one ?
Due note: I live at 220' elevation, with temperature at the time of filming was 56.4 degrees outside...
Here is the link http://www.youtube.com/watch?v=LA-n-N3hTY4
Can't wait to take to the skies with the new boom !!
Good-Luck....Jeff
The reasoning for a pause is I just received Boomtowns M-3 boom for my heli...I have still yet to fly it outside, because all you here on RCU keep distracting me, and progress is slow....! I don't like to "mix" two different effects at the same time, one being clipped blades, the other being a different flight response from going from a plastic rear, to a carbon boom. I wouldn't be able to tell what the heli's differences in flight would be coming from having the two interlaced together. So, I took my clipped wings off, and now will study how my heli reacts with the boom, then understanding, and setting it up from the change, I will resume from the inputs of this thread being a possible help.
I film "test flights" for study later on how the heli reacts in different ways...I'am posting a short flight of what I thought I was the one only going to be viewing it...(Thank goodness I wasn't talking to myself...lol..) however, since I'am pulling out for awhile on the experiment, I thought it would only be fair to then share this maybe so others could just see, how the heli reacted on my first attempt at it...Do note...I took it to the skies, being in a cautionary state, as I had no idea what to expect...Judge yourself what you would think...The wind was picking up, so I had to use the heavy 3-Cell for the additional weight...Good or Bad for clipped blades? Couldn't tell ya, A lot of variables were in place, including a light breeze that kept pushing through...I did notice when accelerating however, and coming back down with the heli, it posed to be a slighter challenge than normal. Forward flight ? Didn't get that far, as you can also see in the vid. I did notice "banking" abilities were different also, In a later flight that I did not film...
The only "upgrades" on the heli is the aluminum on the upper rotor head, bearing cup, lower rotor head, and swash, In the video...The rest stock...
In the video, the heli with the 3-Cell weighed 242 grams...Not sure if extra voltage is good for the clipped wings...Weight ? I would say no...But I can't say...I didn't have the opportunity to put a 2-Cell in for experimentation..
Now that I have the carbon boom, the heli is at a dry weight of 175 grams...with my 2-Cells in there it puts it at 219 grams... 8 grams lighter than stock...so I'am still interested in seeing the effect of a lighter heli with the clipped wings, but first I have to re-learn how it reacts since the new change. And then proceed, to see if it produces a negative effect, or a positive one ?
Due note: I live at 220' elevation, with temperature at the time of filming was 56.4 degrees outside...
Here is the link http://www.youtube.com/watch?v=LA-n-N3hTY4
Can't wait to take to the skies with the new boom !!
Good-Luck....Jeff
10-14-2007, 02:41 PM
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RE: The end of Clipped Blades?
just some info on that 3 cell mod ..... i dont want peps to read the last few post and think they can just plug in a 3 cell .... on the cx2 i am guessing it depends were you live as far as the temp. goes .. as i haves burned up 2 cx2's brains by doing that ... were i live is very hot all the time 90 and up is avg. for the sfv out here in claif. .... that CRYODRIVE site i did some bata testing for sent me a heat sink made for the brain and i have been running 3 cell batts. only for 3 weeks plus now and all is fine .... just love the power and the no blade slap even in wind with my new CRYODRIVE and 3 cell mod......
best of all is the no damage to the rod and tube, BASH !! AFTER BASH !!! as all the rest do even from some what light bashing ... i mean ya it is ez to change out a bent rod but it is soooo much better to not need to .... and changing out the tube is a pain to have to keep doing .... bent rods and tubes SUCK!!! .....
CRYODRIVE , XTREEM MOTORS , XTREEM BLADES , MIRCO HELI GRIPS , MIRCO HELI LOWER AND UPPER HEADS , CRYOBAR FLYBAR AND CRYODRIVES BRAIN HEATSINK ...... OH AND A 3 CELL BATT.
that is my set up and this cx is soooooo unreal sooooo fast and SOOOOOOO STRONG!!!
best of all is the no damage to the rod and tube, BASH !! AFTER BASH !!! as all the rest do even from some what light bashing ... i mean ya it is ez to change out a bent rod but it is soooo much better to not need to .... and changing out the tube is a pain to have to keep doing .... bent rods and tubes SUCK!!! .....
CRYODRIVE , XTREEM MOTORS , XTREEM BLADES , MIRCO HELI GRIPS , MIRCO HELI LOWER AND UPPER HEADS , CRYOBAR FLYBAR AND CRYODRIVES BRAIN HEATSINK ...... OH AND A 3 CELL BATT.
that is my set up and this cx is soooooo unreal sooooo fast and SOOOOOOO STRONG!!!
10-14-2007, 06:14 PM
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RE: The end of Clipped Blades?
no not paid .. or an actor lol .... the deal is i have a small shop out here in the sfv I build custom r/c rock rigs pre customer design ... well one day these guys come in asking if i was interested in doing custom heli builds .... well that did not pan out as i just don't have the time ... but as i do fly helis for fun, I was very interested in some of what their design offered. I have been flying with some of their parts, and am going to the park with a video camera today. I will post the videos as soon as possible. ....... They also want others to beta test. I agreed to help them out by doing extensive beta testing, as their drive system promised to finally fix once and for all, the infamous blade slap, which was an all to common problem.
I simply like to fly, not to spend my time rebuilding my helicopter because of inferiour parts, this is not an option. The extensive beta testing I am doing for them, is just that. beta testing ...I am not selling their parts. I am only handling the beta testing for them and I get to keep all of their nifty parts.
just passing along some good info ...
I simply like to fly, not to spend my time rebuilding my helicopter because of inferiour parts, this is not an option. The extensive beta testing I am doing for them, is just that. beta testing ...I am not selling their parts. I am only handling the beta testing for them and I get to keep all of their nifty parts.
just passing along some good info ...
10-14-2007, 09:37 PM
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RE: The end of Clipped Blades?
Solo: It was killing me some more, so I had to try...this time I flew it keeping in mind that I wasn't flying a coaxial, and pretending it was a single rotor...I just took it slow, and with the lighter heli, rather than with the heavier version I tried, it reacted a lot better, and was surprised that it's response was a little more quicker, but I had to be careful, or I would dump it...It was getting dark, so I'll be interested tomorrow on trying it again. Besides, my tracking was a little off anyway on the lower blades, but didn't have time to get it perfect as darkness was settling in....Anyway that's all for now....I wish you had a way to film, so I could see how your heli reacts..I know every heli is different and I'am curious ! Alright good evening to ya, Jeff
10-15-2007, 08:35 AM
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RE: The end of Clipped Blades?
ORIGINAL: MAGICHOBBY
no not paid .. or an actor lol .... the deal is i have a small shop out here in the sfv I build custom r/c rock rigs pre customer design ... well one day these guys come in asking if i was interested in doing custom heli builds .... well that did not pan out as i just don't have the time ... but as i do fly helis for fun, I was very interested in some of what their design offered. I have been flying with some of their parts, and am going to the park with a video camera today. I will post the videos as soon as possible. ....... They also want others to beta test. I agreed to help them out by doing extensive beta testing, as their drive system promised to finally fix once and for all, the infamous blade slap, which was an all to common problem.
I simply like to fly, not to spend my time rebuilding my helicopter because of inferiour parts, this is not an option. The extensive beta testing I am doing for them, is just that. beta testing ...I am not selling their parts. I am only handling the beta testing for them and I get to keep all of their nifty parts.
just passing along some good info ...
no not paid .. or an actor lol .... the deal is i have a small shop out here in the sfv I build custom r/c rock rigs pre customer design ... well one day these guys come in asking if i was interested in doing custom heli builds .... well that did not pan out as i just don't have the time ... but as i do fly helis for fun, I was very interested in some of what their design offered. I have been flying with some of their parts, and am going to the park with a video camera today. I will post the videos as soon as possible. ....... They also want others to beta test. I agreed to help them out by doing extensive beta testing, as their drive system promised to finally fix once and for all, the infamous blade slap, which was an all to common problem.
I simply like to fly, not to spend my time rebuilding my helicopter because of inferiour parts, this is not an option. The extensive beta testing I am doing for them, is just that. beta testing ...I am not selling their parts. I am only handling the beta testing for them and I get to keep all of their nifty parts.
just passing along some good info ...
Now that that issue is out of the way, I am interested in learning more about this new system. If they are looking for other Beta testers, I have one modified CX2 and one stock. I would be curious as to how the products you are referring to stack up against my modded CX2. It won't be easy, my Heli's pretty sweet!
10-15-2007, 08:37 AM
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RE: The end of Clipped Blades?
J-
J-Michael, just wait until you get your DX7! Program mixing elevator and aileron with throttle ROCKS! It really helps with dumping it on hard maneuvers. Thanks again, Shufflez!
ORIGINAL: J-MICHAEL
Solo: It was killing me some more, so I had to try...this time I flew it keeping in mind that I wasn't flying a coaxial, and pretending it was a single rotor...I just took it slow, and with the lighter heli, rather than with the heavier version I tried, it reacted a lot better, and was surprised that it's response was a little more quicker, but I had to be careful, or I would dump it...It was getting dark, so I'll be interested tomorrow on trying it again. Besides, my tracking was a little off anyway on the lower blades, but didn't have time to get it perfect as darkness was settling in....Anyway that's all for now....I wish you had a way to film, so I could see how your heli reacts..I know every heli is different and I'am curious ! Alright good evening to ya, Jeff
Solo: It was killing me some more, so I had to try...this time I flew it keeping in mind that I wasn't flying a coaxial, and pretending it was a single rotor...I just took it slow, and with the lighter heli, rather than with the heavier version I tried, it reacted a lot better, and was surprised that it's response was a little more quicker, but I had to be careful, or I would dump it...It was getting dark, so I'll be interested tomorrow on trying it again. Besides, my tracking was a little off anyway on the lower blades, but didn't have time to get it perfect as darkness was settling in....Anyway that's all for now....I wish you had a way to film, so I could see how your heli reacts..I know every heli is different and I'am curious ! Alright good evening to ya, Jeff
10-16-2007, 01:38 PM
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RE: The end of Clipped Blades?
ya they still want more beta testers just goto cryodrive.com .... sounds like you got a good setup for there bata testing program .....
i bet if you put cryodrive on the setup one it would do better as you would not need to cut/clip the blades ..... to stop blade slap in wind ect.
anyway i got some vids from the park the other day and the cryodrive peps are going to put it up on there web site soon .....
i bet if you put cryodrive on the setup one it would do better as you would not need to cut/clip the blades ..... to stop blade slap in wind ect.
anyway i got some vids from the park the other day and the cryodrive peps are going to put it up on there web site soon .....
10-16-2007, 02:19 PM
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RE: The end of Clipped Blades?
Yeah interesting...In 10 days I'll be 3 hours north of northridge Cali....I'll be there a month, and then be making a move to Cali.....Better weather for flying lol....! But probably to hot then for the ol' 3-Cell !
10-16-2007, 09:17 PM
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RE: The end of Clipped Blades?
The End of Clipped Blades! Perfect title Soloboss! It certainly is for me Okay did some extensive tests tonight....no crashes Flight one - blades cut 1/4" same findings as above one exception....my handling was on or off. It screamed forward or back and for at least a good 100 feet before the gyro would catch up to it. However as I stated in order to get it go I was at max throttle and full forward stick, diminished aileron however, had to use rudder to turn her around, forget about a nice banked turn.
From there I moved to blades cut 3/8 of an inch. Horrible to say the least, even worse response next to zero lift until max throttle, but damn did she sound cool when you could get it to turn.
Then I went to blades cut 1/2 of an inch. Forget about it! Lift lets just say horrible, would hardly get off the ground, it took damn near a minute for it to reach an altitude of 1 foot. Horrible, maneuvering was even worse, full range stick movements with little or no response. One big plus....damn did it sound cool!
The only way I could ever see this really working would be to increase engine rpm, or higher head speeds. I didn't try it with different flybars however. Oh one plus zero blade clack. Didn't have enough wind to try my inverted trick either
What I would really like to try now is a longer stiffer blade! (Don't go there guys!) That maybe the ticket for those of us that are now content to do scale flying vs. attempting loops! I still think I can do one REALLY I DO!
Don't know what else to say other than there were more negatives than positives. Maybe I need one of those three cell bad boys Shufflez runs! That might have the juice to really push the cut blades. I know if I had higher head speed the clipped blades will make the little scream.
I'm an idiot :P why the hell didn't I try moving servo arms around with the lack luster control issues. Hmmmm maybe Sunday afternoon I'll have a chance to head over to the park and really let her scream....NOT OVER THE BASKETBALL COURT THOUGH. I'll have to bring the wife and fire up the video cam and try a loop :P Thinking about that though raises some serious questions however. With the reduced lift your going to really eat up a lipo in a hurry! My motors got pretty damn hot running with the shortened blades, even the lipo was the warmest I've ever had one. Damn wish I had some way of taking temps.
Okay Shufflez you gotta either send me over that crazy lipo of yours or start chopping up some of those expensive imported blades
Okay did some extensive tests tonight....no crashes Flight one - blades cut 1/4" same findings as above one exception....my handling was on or off. It screamed forward or back and for at least a good 100 feet before the gyro would catch up to it. However as I stated in order to get it go I was at max throttle and full forward stick, diminished aileron however, had to use rudder to turn her around, forget about a nice banked turn.From there I moved to blades cut 3/8 of an inch. Horrible to say the least, even worse response next to zero lift until max throttle, but damn did she sound cool when you could get it to turn.
Then I went to blades cut 1/2 of an inch. Forget about it! Lift lets just say horrible, would hardly get off the ground, it took damn near a minute for it to reach an altitude of 1 foot. Horrible, maneuvering was even worse, full range stick movements with little or no response. One big plus....damn did it sound cool!
The only way I could ever see this really working would be to increase engine rpm, or higher head speeds. I didn't try it with different flybars however. Oh one plus zero blade clack. Didn't have enough wind to try my inverted trick either
What I would really like to try now is a longer stiffer blade! (Don't go there guys!) That maybe the ticket for those of us that are now content to do scale flying vs. attempting loops! I still think I can do one REALLY I DO!
Don't know what else to say other than there were more negatives than positives. Maybe I need one of those three cell bad boys Shufflez runs! That might have the juice to really push the cut blades. I know if I had higher head speed the clipped blades will make the little scream.
I'm an idiot :P why the hell didn't I try moving servo arms around with the lack luster control issues. Hmmmm maybe Sunday afternoon I'll have a chance to head over to the park and really let her scream....NOT OVER THE BASKETBALL COURT THOUGH. I'll have to bring the wife and fire up the video cam and try a loop :P Thinking about that though raises some serious questions however. With the reduced lift your going to really eat up a lipo in a hurry! My motors got pretty damn hot running with the shortened blades, even the lipo was the warmest I've ever had one. Damn wish I had some way of taking temps.
Okay Shufflez you gotta either send me over that crazy lipo of yours or start chopping up some of those expensive imported blades
01-14-2008, 01:58 PM
#18
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RE: The end of Clipped Blades?
hmmm.. Cryodrive looks like they copied mine and goldslingers CF rods ideas. Thats not cool.[
] Its kinda sad.
If anyone wants a "[:@]Cryodrive[:@]" then just make your own or 20 of them for the same price they sell theres. Heres a link on how. Just toss it on a freezer when your done.
http://www.rcuniverse.com/forum/m_6832682/tm.htm
Sorry Soloboss, for jumping into your thread like this.
] Its kinda sad.If anyone wants a "[:@]Cryodrive[:@]" then just make your own or 20 of them for the same price they sell theres. Heres a link on how. Just toss it on a freezer when your done.
http://www.rcuniverse.com/forum/m_6832682/tm.htm
Sorry Soloboss, for jumping into your thread like this.
01-17-2008, 12:57 AM
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RE: The end of Clipped Blades?
ORIGINAL: crazychris46dividedby2
2. increase lift by increasing the surface area of the blade. instead of using a longer stock blade configuration what about somehow adding more surface area to the trailing edge of the blade. for testing this theory you could possibly use scotch tape along the trailing edge and fold it over from top egde to bottom edge. balancing will come into play as well but i think it would be worth trying.
2. increase lift by increasing the surface area of the blade. instead of using a longer stock blade configuration what about somehow adding more surface area to the trailing edge of the blade. for testing this theory you could possibly use scotch tape along the trailing edge and fold it over from top egde to bottom edge. balancing will come into play as well but i think it would be worth trying.
[quote][I've also widen the blades using packaging tape.
It makes take off's and throttling up faster about (10-20% more).
I'm about 3 clicks lower on my throttle controler to hold a hover.
Seems to make the flybar more responsive.
I see less arch on the tip/end of the blades during flight.
Also creates a slight (chopper) like sound.
Please note that they have to be almost perfect in measurements, weight and placement.
I used a ruler and a penciel to make locations. /quote]
01-17-2008, 05:22 PM
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RE: The end of Clipped Blades?
Dear Mr. Rice, I do believe you give yourself too much credit. There were far more innovations to my personal craft than gaulling gears and pounding rod. We didn't know about your endeavors till we started actually talking on this blog and the other. I know I have not made any personal attacks upon you personally other than the helmet remark, which I thought pretty funny. I did look at your pics and you are in the very first stages of our work. Please continue your progress for you just might be the next big innovation. A personal supporter of Cryohobby.com
01-17-2008, 05:49 PM
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RE: The end of Clipped Blades?
Dude, If you can pull off a loop, please let me see the video, I personally want to do an upgrade that will do this, my pal laughs at me when I talk about it. Do not cut your blades to stop the blade slap, the best way is stiffer blades and more distance. Like I have said, it was a cool helicopter with poor engineering. Servos are critical, I have personally had them stick and wondered why I couldnt fly properly. Hell, I started flying with the UFO, it had a bad gyro right out of the box and I thought I really sucked at this. The three cell is no big deal, I promised my pal I would setup the details for the site so that is what I am going to do. What sucks about all of this is.... everyone is trying to make this thing fly properly and, where do you go to get what really works. Get rid of that damn tail and re do the center of gravity on the damn brain. That is where it starts, you will have less blade slap do to less weight, it is more manuverable, it is a twin blade helicopter, all that tail does is collect wind.
01-20-2008, 08:56 AM
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RE: The end of Clipped Blades?
ORIGINAL: eat2muchrice
hmmm.. Cryodrive looks like they copied mine and goldslingers CF rods ideas. Thats not cool.[] Its kinda sad.
If anyone wants a "[:@]Cryodrive[:@]" then just make your own or 20 of them for the same price they sell theres. Heres a link on how. Just toss it on a freezer when your done.
http://www.rcuniverse.com/forum/m_6832682/tm.htm
Sorry Soloboss, for jumping into your thread like this.
hmmm.. Cryodrive looks like they copied mine and goldslingers CF rods ideas. Thats not cool.[
] Its kinda sad.If anyone wants a "[:@]Cryodrive[:@]" then just make your own or 20 of them for the same price they sell theres. Heres a link on how. Just toss it on a freezer when your done.
http://www.rcuniverse.com/forum/m_6832682/tm.htm
Sorry Soloboss, for jumping into your thread like this.
