texastwister

My Feedback: (2)

Just curious, since i have a new supertiger G-2300 (1.4) laying around and planned on buying
a OMP kit here in the next week or two, Would this be a good choice of kit
or would it be under powered, if so which would be the best kit for this engine?
thanks
Steve

STLPilot

My Feedback: (21)

65" Yak would be a better choice. With an OS 91 it should balance dead on and around 7 Lbs.

Now just add the weight difference of the ST and let us know.

Icebird

I just had to jump in here before someone created a problem for themselves. I have had a ST 2300, and it's nothing like a 90!!! It has very similar power to an OS 160FX, and if you can get it to run right, is a very nice engine. Putting it on a 65" plane would be insane! I had mine on a 12.5 pund Ultra Stick, and at 3500 feet it had adequate power to pull out of a hover. If the 79" Yak is built light, the motor should work great on it.

Jim

STLPilot

My Feedback: (21)

Well this topic has come up several times and most say that the ST 2300 is marginal and not as powerful as an OS 1.60.

If it turns a prop as big and as fast as an OS 1.60, I've never heard that, but I guess is possible.

texastwister

My Feedback: (2)

Thanks for the replies, I found a buyer for the st since I had my heart set on the 79" yak
and plan to go gas, I always wanted to get into gas power and find this a perfect excuse
thanks again for your expertise
steve

STLPilot

My Feedback: (21)

Get the MVVS 2.15 from Morris, you won't regret it.

Bill Killillay

My Feedback: (18)

http://morrishobbies.com/product_inf...4bee7f9615d563

That motor? That is gas and not glow right? I too am looking at getting into gas...

Kregg

My Feedback: (45)

Cap,
The link you provided is for the GLOw version! Follow my link and you will see the GAS version. The gas version is $100 more than the glow. Note the carb is very different.

http://morrishobbies.com/product_inf...4bee7f9615d563

AFSalmon

My Feedback: (3)

Hmmm, that's a tough one since the 1.4 is right in between the two bigger profile choices. I'd say it would be definately too much power and weight for the 65" yak and my first reaction is marginal for the bigger profiles. However I've never run the ST 1.4 and can not comment on it's power. If it will turn an 18-6 prop at around 9000 rpm then you have comparable power to the OS 160 and would be fine. If not then I don't think so.

Bill Killillay

My Feedback: (18)

Kregg,

Thanks, that looks better...

For a profile like the 79" in question here which muffler is best?

BK

Kregg

My Feedback: (45)

Bill,
I'm not sure about the muffler choice for the MVVS, but most I have seen (pix only) use the tuned pipe that they offer for that engine. Personaly, I'm putting a BME 50 on a OMP 80 inch Edge that I'm building. It is basicly the same aircraft as the 79 Yak with a 1 inch longer wing and slightly different profile shape.
Kregg

Bill Killillay

My Feedback: (18)

Where can one find more info on the BME 50 at? Also how hard will some of these motors be to mount?

Thanks,
BK

STLPilot

My Feedback: (21)

BME 50 is at rcshowcase.com

The BME 50 is a rail mount engine!

STLPilot

My Feedback: (21)

Call Robert at Morris Hobbies and ask him about muffler performance specs for the MVVS. I have the 3 foot pipe and love it.

Kregg

My Feedback: (45)

Actualy, that is not correct. You can not buy BME engines at RCS. RCS sells ZDZ and RCS engines. The BME engines are sold by many retailed like ChiefAircraft.com or direct from BME. Chief has the best prices. This engine is beam mounted just like a glow engine, so they are easy to mount. The only catch is you must order the special profile muffler directly from BME. Cief will sell the BME without a muffler for $509. The profile muffler from BME is $72.

http://www.chiefaircraft.com/cgi-bin...s/BME/BME.html

http://www.bmeengine.com/html/50.htm

Bill Killillay

My Feedback: (18)

Do you mind posting a picture of how your mounting it to your plane? I know on some fully built up planes they have a tunnel built into the plane for it, but on a profile there is not that same provision.

Which is better in the long run the BME or the MVVS? The MVVS seems to be cheaper for the motor and pipe, I think, I need to look again and run the $$ numbers, however if it's less than $100 between the two, and one is better as far as lighter weight and more power then I don't mind paying the extra.

One more thing, do these two motors use two servo's or one? I thought that I read somewhere that the gas motors require two, is that true?

Sorry about all the questions...

BK

STLPilot

My Feedback: (21)

They mount just like any glow motor. Rail mount.

Better? It's a personal thing ... some people say MVVS some say BME.

My money is on MVVS. But I'd take em both.

Bill Killillay

My Feedback: (18)

Dion,

Silly question, but how do your planes fly? I've never flown one, but I've flown a few others in the 1/4 scale size and I'm really wanting something that is over powered and that I will feel comfortable being down low with, you know like doing TR's on the deck in my face and know that I've got the punch to go straight up...

Also do these motors use one or two servo's?

BK

Bill Killillay

My Feedback: (18)

Ok, I went and did some pricing home work. It seems to me that a BME 50 or DA 50 would be a better value. More CC, same weight, more power, and only a little more money. Also both have free shipping/handling if ordered through Chief...

MVVS - 35cc
Weight: 55 oz. or 3.44lb
$439.95 - motor
$99.95 - tuned quiet pipe
$539.90 + s/h

BME - 50cc
Weight - 3.3lb (3.5 oz more for muffler)
$569.95 - standard pipe
$609.95 - pitts pip
s/h included from Chief

DA-50 - 50cc
Weight: 2.94 lbs (3.13 lbs with stand-off mounts)
$549.00 - motor
$69.00 - standard pipe
$94.95 - wrap around pitts style
$618.00 or $643.95
s/h included from Chief

Suddenly the DA-50 is looking like the best value when it comes to weight... and power output... ohy, ohy, ohy, what to do...

Bill K.

Icebird

I went with the BME 50 for my 80 inch Edge, due to it's being so much easier to mount! All I had to do was cut about 3/16ths of an inch from the top and bottom motor mount beams, and the motor slipped right in. Drill the 4 holes, put some bolts through, and you're mounted and ready to go. With any other motor, you're going to have to do some modifications to the plane to mount a rear mount. The BME will have MORE than enough power to make this plane have "stoopid" power! You can't use the stock muffler or a Pitts style on a profile though, and the mufflers are made for an inverted mount motor. If you go with the BME, get a single muffler for the 110 Xtreme, and it will exhaust straight down like you want it to. I'm putting a cannister on mine, but that's because I want it very quiet.

HTH
Jim

Bill Killillay

My Feedback: (18)

Jim,

Thanks for the response. How will you mount the cannister, and how much are they, do you have any links to that and to the 110 Xtreme by chance?

BK

AFSalmon

My Feedback: (3)

From the mouth of the designer (me) I do not recommend putting a 50 cc gas engine on the giant profiles. That's my official statement. However it has been done many times with the BME 50 and quite successfully. I would only recommend doing something this radical with a kit you build yourself as that's a ton of power for a 12 lb airplane and you need to keep this in mind when building. If you want to go gas the MVVS 2.15 is the most popular option used and is reported as being very successful.

STLPilot

My Feedback: (21)

Well I have MVVS 2.15 and I can tell you it purrs like a kitten and vibrates much less the BME 50. But like Mike said .... lots of guys have the BME 50's and I've flown quite a few with it.

The MVVS is a better choice for this particular plane. Just talk to Robert at Morris ... he's the real pro on the MVVS motors. Listen to what he has to say, he knows what he's talking about.

Kregg

My Feedback: (45)

First off. I have yet to fly this aircraft or even see one fly first hand. That being said, I understand Mike's position on the 50cc engine being to large from a official standpoint. A lot should be said about all of the successful kits he has sold that use the MVVS or smaller. It is all about individual opinions. The resone for my BME 50 choice is several fold.

1. I do not fly glow any more. Any off the gas options would fill this need.
2. I was looking for an engine that would be the most versitile for future usage. This one is easy. The BME or DA both weight about the same or even less than the MVVS or other glow options that have been used. The BME or DA also have lots more power and better possibilities for future 3D aircraft usage. They do cost a bit more.
3. I selected the BME over the DA sinmply because of the beam style motor mount. I love DA engines and have a 100 and a 150 that run great. I have also heard that the BME50 is actually about 1/2 pound lighter than a DA50 when fully outfitted with muffler and spark equipment. Not even counting the extra ply firewall modifications that would be required for the usage of the DA.

I'm building mine and paying extra attention to making her strong, yet light. I can take a few pix this evening of the aircarft in the bones (not fully completed) if you would like. It will also show the BME and the general mounting, plus the special profile muffler from the 110.

Kregg

Icebird

I'm planning on using a strap system to mount the can to the bottom/side of the fuselage. They are pretty expensive, If I remember correctly, by the time I got the cannister here, I ended up paying close to $200.00 each for them. I had to make the header myself as well. You can find information about them at: http://www.krumscheid-metallwaren.de...-englisch.html

For the BME 110Xtreme, go to http://www.bmeengine.com/ and there is information about all of the BME line of engines and accessories.

HTH
Jim