Bi-Fly (oz6637)

About this Plan

Bi-Fly. Radio control sport model. Uses the Testors foam wing.

Quote: "A fly-for-fun design for .15 engines and anything from Galloping Ghost to 3-channel digital.

Bi-Fli - a fly for fun plane which is the result of a number of ideas which lay dormant until the RCM Design Contest came along and provided the incentive to get the project underway. I have built and flown many different types of models, mostly gas, and now really enjoy the thrills of R/C modeling. As a modeler dating way back to pre-Plymouth Internat days, I have some pretty strong convictions on how a model should be constructed and so really jumped at this opportunity to express these ideas.

With the power of today's engines, and the reliability of R/C equipment, we now have real freedom in the design of the model and can lean towards good appearance in design and model finish. Since the Bi-Fly is a fly-for-fun plane, I looked first to a realistic configuration. There are a lot of us who like a biplane, as is evident by the increasing numbers seen in R/C circles today and, I personally like a cabin model, so I molded the two design ideas into the Bi-Fly.

My second criteria for a model is that it must be rugged. I like a plane which will get up and go without spending a lot of time out for repairs. Despite all one does to prevent accidents there are times when they do happen, and so I appreciate a model that can take a few bumps apd still come out on top. I can assure you that is you are careful during construction that the Bi-Fly will meet this criteria. Third, if it is a little out of the ordinary the plane will make a good conversation piece and, in my research, I sure didn't turn up many cabin type biplanes!

One of my biggest problems is finding time for modeling, so I really look for short cuts in construction and, as evidenced by the plan, this is a slab sided model with the corners rounded off to dress up the appearance. Since I abhor the building of wing structures the next big short cut is in the flying surfaces. I used the Testors foam wing and stab, but the Midwest or Sig foam wings would do just as well..."

Note: The listed wingspan here of 35in assumes 5in was cut from a 40in(?) foam wing.

Update 16/4/2024: Replaced this plan with a clearer copy at 600 dpi, thanks to theshadow.

Direct submission to Outerzone.

Supplementary file notes

Article, thanks to JHatton, AugustaWest.
Previous scan version.

Corrections?

Did we get something wrong with these details about this plan (especially the datafile)? That happens sometimes. You can help us fix it.
Add a correction