CRAZYRYAN

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I would love to take a plan from a huge bomber kit enlarge it to where it is 50ftwing span and 40 or so ft length put in each 4 engine compartments a 7 or more cylinder radial engine and just listen to the sound fly by, has anyone ever attempt this challenge?sorry i have no money for that for sure. and would definitely need a waiver for it to fly cuase it would waight roughly around 250lbs or more. this thing would be bigger than the vehicle i drive wouldnt know how to transport it safley maybe a uhaul van thats 10ft high by 15ft wide by 40ft long. does anyone know how hard it is to fly a standard size bomber like a b-17?

Mr.Extra 260

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Never herd of a rc bomber that has a 50ft wing span.I dont event think it would be possible unless you used a special material.

Rickles56

It would probably be cheaper to rebuild and exisiting one. A 1/6th B17 or B24 is a pretty big machine if you have ever seen one. Even the 1/9th is 138" wingspan, almost as wide as 2 car garage!

bubbagates

My Feedback: (32)

I gotta ask, I've been going back through your last 50 posts and I got to know. Is it normal for you to dream up this kind of stuff? There are a few posts where you come up with some decent ideas but they are somewhat way out if left field.

Please do not take what typed wrong, it's meant to try to understand a bit better. These posts do make for enjoyable reading [sm=thumbup.gif]

CRAZYRYAN

My Feedback: (1)

lol good one, what would you tell me?

GRANT ED

Well there is problem number 1.

T. Bob

My Feedback: (9)

Come on people lets use the spell check.
It's the little button on the lower right-hand side of your screen.
Thank You

CRAZYRYAN

Sounds like a great idea, I'd go for it.


Your right Mr. Extra 260 you would need very .

dgfick

My Feedback: (1)

TBOOB, what wheels would you use for the bomber?

ICE_MAN

I could put my step moms Toyota Carolla up on cinder blocks and send you those wheels?


I wish someone would build a bomber that big... Not gonna happen tho

subarubrat

My Feedback: (1)

I read this post and had to ask myself if he was young or high or both. But, I don't think it is as crazy as it sounds as long as you have the right expectations. If you head over to ezonemag.com and look in the foamies there is a guy from Wisconsin who built and flew a huge high wing building the entire thing out of pink foam. It was electric too. He designed and built most of a full sized (50ft WS I think) larger version but I haven't seen the result.

There was also a guy on RCwarbirds.com that built such a B25 using a ply box structure and foam for shape. He used two husky engines.

IF you used that sort of mostly foam construction and a large CF tube for a main spar I think you could rather easily build a 50Ft WS twin using two conversion engines. It wouldn't be pretty up close and it wouldn't have any 7 cyl radials but it could be done for no much money.

geardaddy

My Feedback: (27)

50 foot would be about 1/2 scale for a b-17 a b-25 is about 70 foot span. P-38 is 50 foot so these models may nees a pilot onboard. Something with long wings like a hughes xf-11? and even the plane used in the Aviator movie was a big heavy whopper with some UAV engines. i am the kook who built the 17 foot 1/4 B-25 and it seemed ike a good concept in the beginning but in the end it was flawed, heavy and weak is not a good place to be, may do another one and improve it. Please keep deaming up stuff Ryan as it is fun to hash over, let's hope the naysyers do not ruffle up their feathers then it becomes just another 55 pound debate and that horse is pretty well beat up.

CliffordH

My Feedback: (9)

It doesn't have 50 foot wings but what was the span on the B-52 the guy had, I think he was in the UK. It was crashed in about 2003 or 2004 but I saw where it was being rebuilt.
There is another that isn't a bomber but a guy also had a large transport, I think that was in the UK also.

They have some large 1/2 scale WW1 and other planes across the pond but does anyone know more about how they get licensed to fly them in public? I read that they are inspected several times while being built and then have to have 10 hours documented flying time before they are signed off for public flight. The AMA has a 55lb limit but how could one get permission to fly a model that large in the US?

bubbagates

My Feedback: (32)

You can get permission to fly heavier planes in the US. Bill Hempel just did it with his 75lb Edge540.

Check on the AMA website. There is a place that shows all the sections and what they are for. One shows a list of pilots able to fly heavier planes and what that plane is

T. Bob

My Feedback: (9)

Yea 250lbs sounds about right.

shakes268

The wingspan on the B-52 was either 24 or 25 ft.

CRAZYRYAN

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mabybe i was over exagerating[:-]

mogman

I don't think you realize what a problem BIG airplanes are. First off do you have a place to build it? Do you have a way of breaking it down into maneagable pieces to move it around? Do you have a way to transport it? etc,etc. I built a 1/2 scale spacewalker, 13ft wing 71lbs. breaks down like 1/3 size to move and transport, still a handfull!! especially on floats! I am now starting a 1/2 sopwith pup, I think I need my head examined!! It's nice to have big dreams and aspirations, I do it all the time, then reality hits!!!
Cheers, Dave.

alanc

here, across the pond, we have the large model association, group of guys (650plus members)dedicated to building big!
just to start, anything over 71/2 kilograms, is considered a large model, and MUST BY LAW be fitted with a failsafe, that, at the very least, will bring the engine to tickover, and get the plane in---sorry, on the ground
we are governed by the civil aviation society, and over 20kilograms, a model has to be inspected, at various stages, right from the drawn up plans, to signing off for permit to test, airframe inspection is done by qualified personnel, within the association
there is a maximum size of weight, but forgive me, i cant just think of it,
over 20 k, 2 receivers have to be fitted, and dual batteries, several models have up to 4 receivers fitted, and full redundant back up systems

you think we build big? look in Europe? google la ferte ale(spell?) this event, in France, is held at the museum of jean baptise(spell?) and is overrun with HUGE models, making ours look small by comparison
we presently have several bombers on the circuit, 18foot B17S, which we constantly fly 3 up at a time, with fighter escort,
lancasters by the truck load, infact, kits are available for 17foot lancs, 5 are being built now
we also have the globe master, this has just changed hands, for a reputed £19500--bare airframe!!, this was built for the discovery channels mega models series

look in the gallery, of the LMA, plenty of mouth watering there!! and all these models have one thing in common---white box vans, flightlines are FULL of them
if you build big, storage, and transportation MUST be at the top of the list, right next to how to break it down into manageable parts
mention has been made of the ill-fated B52, it took a team of guys 2 hours to assemble, and align this beast, at every show
in Belgium, the guys there built a SUPERB B29, powered by 4 ZDZ 120 motors, their van even had a winch, to assemble the thing!!! this was 28foot

is 50 foot possible? dont think so, laws of the land, yours, and ours, wont allow it,
keep your eyes open round the show circuit over there, one of our guys, john deacon, is going to live state side, he has taken with him one of our best models, an 19foot span liberator, powered by Z45s, covered in litho plate, and representing the HOOKUM COW, truly amazing
hope you guys have a good, safe season
ALAN

RICK9303

My Feedback: (172)

The largest Bomber that I have seen pics of was Byron Originals 29 ft , 400 lb. B-29. It had 4- 100 cc gas engines, and took two pilots to fly. They also had 13 ft B-25's. They used these for their yearly War Bird Show. I believe it was fg and foam construction.

Rick

jtrechter1984

I think the Idea is one that alot of wish we could do. But like previously stated it is one that would alot more work than just make plans larger. Generally if you enlarge plans more than 15% larger usually you have to modify 20% of the parts to fit & work.

Also you would begin to breech the scale/1:1 barier. What I mean by that is that it's nearly impossible to make a small airplane out of the same matterials that are used on the real airplane that is due to air density, engine power, airflow & strength. Balsa, fiberglass, foam, & some composite materials are used for the scale planes due to the fact that since they are so small these materials are lighter yet stronger for there size wheras if it was used on a real plane they wouldn't work.

I know that most of you already know this but this would be one of the many problems w/a 1/2 scale plane. So this is my suggestion everyone knows that it is near on impossible but hey why not dream & see what we can come up with.

I don't know if this is what you meant for this forum but my suggestion is that since we know why it might not work how about trying to figure out what might work. such as material that is light enough but strong enough to hold up to the stress. That sort of thing. That would be the difficult part. Then after you figure out the materials then you can work on plans but I think it would be interesting if people just gave there thoughts on what could work.

Just my thoughts


thanks

gutwrench

Where can I find plans to a bigger B-17.I now have a 78"ws 53" fuse B-17 thats fiberglass skinned over foam and balsa.It was given to me with one piece glued together out of the whole kit. Its old most of the wood pieces crumbled,so I made new ones.It came with a ripped in half sheet for the plans with name Erik Meyes design By Hitek Models.Searches come up blank so I put it aside and work on it a little at a time. Any help would be great,I dont know the scale of it either.

Rob Howarth

Cor, I would love to get an Avonds F15 kit/plan and scale it up 10 times - wouldn't that be awesome a 1.1 scale F15. I'd also put reheat on it and have an extra large man sit in it. I'm sure it'll only weigh 39000kg so I may get CAA/FAA certification. I could use Futaba S148 servos on the surfaces and use a FF6 to power this beast of a set up. Cor, I can't wait. Has anybody else done anything like this yet?