octanehuffer

As a winter project I want to get two Top Flight 1/5 scale ARC mustangs and make one F-82. By scale it will have a 124" span. I am guessing that it will be around 35 lbs. and I will power it with a pair of DA 50's. Might be a little over kill but the P-51 flies well with one. The wings will be cut on the side of the fuses and lengthened in the middle. For the left fuse the wing will be cut along the right inside line of the fuse and for the right fuse I will cut the wing on the left side. This will serve certain purposes. I will be able to mount the fuses to the wing just as if Top Flight intended. No need to fabricate someting that is already there. It will also allow me to leave the main spar intact to connect to the middle section to the wings.
The main gears on the full scale plane were in the fuses. For simplicity I will leave the wing pockets and gear in the win on the outboard sides of the fuse and run a good strong retract and mount(Sierra?). The tail wheels need no modifications as they were in the aft fuse. Also run a strong retract.
Everything seems very achieveable at this point, but the only question I have is right thrust. I have never run a twin before, but I would guess that there is no right thrust.
Let me hear more thoughts on this project and lets see what comes up. Cant wait!
Adam

butlern

My Feedback: (15)

Wow! Sounds like a cool (and very ambitious) project!

However, before you re-engineer those two planes to fly as one, you might consider having a look at the offering from Giant Scale Twins. Their F-82 looks mighty impressive, and it's 1/5 scale, too!

http://www.giantscaletwins.com/

Either way, good luck! I'd love to see some pictures as you get started on assembly this winter.

tora6

Ck. the F-82 drawings. TwoF-51D's do not an F-82 make.

vik

My Feedback: (1)

you will need 2 P51H

rrudytoo

My Feedback: (27)

As Adam pointed out, he is not making a contest-grade scale aircraft. With this in mind, what does it matter if he chooses a path of least complexity by utilizing off the shelf TF P-51D components? Most folks won't even notice the gear placement let alone the model of the fuselage.

Go for it, Adam! It sounds like fun!!!!

Al

octanehuffer

That giant scale twins plane looks very good. Thanks for the link, very helpful.
This wont be a pure scale plane and wont win any scale meets for its authinticity, but it will be alot of fun! Ive been talking with some club members about it and it helps to have a push in the right direction.
Adam

F4u5

My Feedback: (81)

Alright....another one. I had one of these. I bought this same set-up from a guy. He said it was built by an elderly gentleman in TX that, unfortunately, passed away before he got to see it fly. He also bashed it from 2 Top Flite 1/5 kits. You will definitely save time with the ARC's. He enlarged the verticals to represent an H model, but it was still sport scale. Nonetheless, it looked the part and looked good. Flew even better. I was the second and fourth owner, and now a friend of mine has it. It is about 6-8 years old now. It flew superb and I actually miss it. Never had an engine out.

Octanehuffer, you are close on your estimates. Here are the details on mine. It weighed 33 pounds and was monokote covered. It has a pair of G-38's, which is very ample power. Robart retracts and twin receivers with split elevator half to each receiver for redundency. The span was 126 inches, so I guess it depends on how much you sand the wingtips. Personally, I would have preferred it glassed with a pair of G-45's. There was no offset thrust of any kind on mine.

Good luck with the project.

Jeff

TLH101

My Feedback: (90)

I thought I had some pics of that one Jeff now has,( at least I think it's the same one) when it was at Bomber Field several years ago. I can't seem to locate them now. may still be on the old puter.

mobyal

Go for it! I'll enjoy watching....
Al

samparfitt

My Feedback: (43)

this was at the warbird flyin at Muncie on Labor day in 2005 for, I think, $1500.
Don't know who owned it.
No engines or retracts but still a good deal.

samparfitt

My Feedback: (43)

Here's Jeffs.
Might want to call him.

Cyclic Hardover

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Shoot, I like this idea. Who cares if it's completely scale? It's somethng different and will be a well admired plane

F4u5

My Feedback: (81)

That's her Sam.

Jeff

octanehuffer

Thanks for the great ideas guys. Its good to see someone had already done one before, but in retrospcet I also wanted to be the first with the ARC kit bashed. The G-45's also sound like a perfect choice. As a request by my wife this one has to have Nav. and formation lights. Another easy addition with the ARC option.


F4u5= Was the wing 1 or 2 piece. I wanted to incorporate a design the allowed two wing halves but it is probably beyond my ability.

F4u5

My Feedback: (81)

Mine had a 3 piece wing. The center section was bolted to the 2 fuselages. Wingtubes held the outer panels in at the fuse side.

Jeff

Thunderbolt47

My Feedback: (8)

Hey Octane, Man I was thinking about the very same thing. It would definantly be something different. and who really cares about exact scale. The T/F mustang is sport scale anyways.

I'm working on a T/F corsair at the monent ,but would love to start it around Christmas. maybe a little sooner if the F-4 goes good.

How long before you would be ready to start one? Maybe we can collaborate on the project.

As for the thrust, The full scale had counter rotating engines.

I believe this was the plane that they put the engines on the wrong sides and the down wash from the blades wouldn't let it take off. When they swaped the engines around it flew perfect.

Thunderbolt47

My Feedback: (8)

Here's some 3 view drawings I found last nite.

I called Tower and they sell the fuse for 154.99. I think this was the Arf one. I for got to ask which it was.

I figure one complete plane and one fuse, should be enough to get started. Looks Like the center wing and the horizontal stab will have to be built from scratch.

Also It shouldn't be to much trouble to move the gear to the scale location. I can also use the fixed tailwheel from my present mustang and the fixed one from the new kit to save a little money on retracts. then replace them later with retractable ones.

octanehuffer

I wanted to start this project sometime this winter, but it depends if I run the gas line to the garage this year. I figured the the elevator and the wing center would be scratch built. Top Flite's website has the plan for the kit version, so I was thinking of using that for the rib airfoil in the center section. How do you plan to install the retracts in the scale spot?
Adam

Thunderbolt47

My Feedback: (8)

Hey Adam, I'd have to look at my mustang wing a little bit and study it. I'm sure it can be done.

I don't know about the Mustang plans but my Corsair plans don't have the individual rids on them. Just one rib near the flaps. So the plans may not be much help.

octanehuffer

The plans for my 1/7 scale TF P-51 had the center rib on the plans. I was assuming the 85" had it too.
Adam

paint-boy

I don't know if any of you use Real Flight to hone up on your skills or not. But I modeled a F-82 from scratch.....it's not done. I was working on setting up the flight physics. I Ran into a few snags here and there so I just put this model on the back burner for now. If anyone uses R.F. 3.5 and is possibly interested in wanting to try what I have so far out just let me know

Thunderbolt47

My Feedback: (8)

Hey Adam, I found some 3 views of a mustang. I enlarged them till the fuses where roughly the same size. It looks like the outer wings are the same length. That makes it easier.

Notice the P-82 doesn't have the break in the leading edge near the fuse, where the wheels go in. So would you leave the "breaks" there or remove them.

Moving the retracts shouldn't be to much trouble.

Next question is where to mount the horizontal stab. Would you leave it in the stock location or move it up to scale.

scale dail

My Feedback: (8)

The F-82 is a neat plane. yea most modelers just hook up two P-51's. still looks good. the late Col. Art Johnson of Florida made two different REALLY scale models for the scale masters. he flew the full size ones just like Col. Bob Thacker! wish I could get a set of plans for his model!

Hepdog

I do beleive that the F 82 had a longer fuse from wing to tail and an increased vert fin size. This is to primarily to make single engine handling acceptable, however that should also be considered for when both fans are still turning - including models.

2 normal Mustangs joined together do not necessarily make an F82 - scale or not. There is still a fine balance between wing area, vert fin area and fuse area ahead of the CofP. Others may have done it but do check the numbers first - no point wasting 2 fine P51 fuses to snap roll it in under V1mc (or whatever they call it these days). The others may look like two normal fuses, but looks can be deceiving.

Great idea, F82's are awesome. I'd love to see an all black F82 night fighter complete with center radar pod - awesome machine.

samparfitt

My Feedback: (43)

here, ya' go!

http://www.rcuniverse.com/market/item.cfm?itemId=313856