Bi-Fly (oz6637)


Bi-Fly (oz6637) by John Riley 1970 - plan thumbnail

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.


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