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Help! Mystery plane

idahobob

New to GSN!
Someone asked me to get an airplane they had inherited years ago. Suspected plane is at least 30 or 40 years old but surprisingly solid. It has an approx 68 inch sheeted foam fuselage, 80" all foam wing, Wing chord is close to 18" and really thick. We did figure out that the engine is probably a Quadra 35 or 42 and has the optional pull rope starter. The original owner got into building foam planes so I doubt this was a kit but i could be wrong. I do believe it may have been from plans from AMA or other organization. Any help would be appreciated.
Big red plane1.jpg
 

AKNick

640cc Uber Pimp
Looks like it was derived from a Lanier Laser 200 fuselage retrofitted with Giant Stinger wings with a corsair/spitfire canopy and a custom front hatch. This has custom written all over it! Good luck!
 

idahobob

New to GSN!
Looks like it was derived from a Lanier Laser 200 fuselage retrofitted with Giant Stinger wings with a corsair/spitfire canopy and a custom front hatch. This has custom written all over it! Good luck!
Thanks for the input. You are the only one to express their opinion and it is appreciated. Since I posted this I have learned that the engine was either a repurposed from a Trolling motor, post hole digger, or some other powered device. Or the guy mounted the pull rope starter from one of them. I have removed the pull rope. I think if I get this thing flying it will be a kick in the butt.
 

TonyHallo

150cc
The engine is a Quarda, I'm betting a 35. Does the coil have a wire on it that leads behind the fly wheel? Here is a photo of a Quarda 35 that I have, might just finish assembling it some day. Note it is the same.
Looks like covering is attached to the foam, is this the case?
IMG_3664.jpg
 

idahobob

New to GSN!
Yeah it's an older Quadra. I pulled the engine to check it over and test run it. It has one piston ring which I am to understand makes it a 35. It does have points. Some time later I will probably switch it to electronic ignition if it survives the test flight. LOL. Thanks for your input it was much appreciated.
 

TonyHallo

150cc
I'm pretty sure the 42 came with the pointless ignition. Forgot to comment on the plane, never seen anything like it, back in the early 90's there was a foam plane called the Prime Cut that looks like your plane but was a little bigger.
 

idahobob

New to GSN!
I think TonyHallo is on to the something with the Sarpolus designs.
Looks a little like his Choice Cut as featured in Flying Model April 1992. Link to back issue: https at://store.flying-models.com/product/product-1725/
I thought so at first and did some research on Sarpolus. He may have given the original owner some ideas but the mid wing mounting doesn't seem to match up with any of his similar stuff. As soon as I figure out how to stop the fuel syphon to the carb it's ready to fly. No where else to move the fuel tank so I am going to try a uniflow set up with a big loop and see if that fixes it.
 

jhowe_rc

New to GSN!
idahobob,
You should not have any issues with the Quadra syphoning fuel no matter where the tank is. I only use a 2 line system on all my gas engines for the fuel tank. This places a "T" in between the clunk line and the carburetor which I use the 3rd line for fueling/defueling the plane. A Walbro style should not let fuel syphon to it nor let air enter which is why the system works.
I am betting that your Walbro carb has been siting for some time and the diaphragm is dried out. I would give B & B Specialties a call and they can set you up with a card kit. (I think they go for under $10)
 

idahobob

New to GSN!
Thanks. You are the 2nd person to tell me to replace the diaphragm so I guess I am going to replace the diaphragm. Much Appreciated.
 
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