Bi-Fli (oz823)


Bi-Fli (oz823) by Phil Kraft from Model Airplane News 1959 - plan thumbnail

About this Plan

Bi-Fli. Early RC stunt model. 47in RC Stunt .15+, 3-chan escapement bipe, Phil Kraft, Oct 1959 MAN.


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Bi-Fli (oz823) by Phil Kraft from Model Airplane News 1959 - model pic


Bi-Fli (oz823) by Phil Kraft from Model Airplane News 1959 - pic 003.jpg
Bi-Fli (oz823) by Phil Kraft from Model Airplane News 1959 - pic 004.jpg
Bi-Fli (oz823) by Phil Kraft from Model Airplane News 1959 - pic 005.jpg
Bi-Fli (oz823) by Phil Kraft from Model Airplane News 1959 - pic 006.jpg

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User comments

AFAIK it was single-channel with 3 *cascaded* (Bonner Varicomp) escapements, as mentioned in the plan.
UStik - 08/01/2017
Please find attached photos of my recently completed & flown Phil Kraft Bi Fli built from your OZ plan 823 [more pics 003-005]. When I first saw the Bi Fli in an old magazine found at our local hobby shop I was hooked on the design. Must have read over the article a dozen times. Quite some time later I found the plan on your site, downloaded, printed it off & started construction right away. I made a few changes to the construction of the nose area to suit modern motor mounts & fuel tanks. I also intended to use servos instead of three escapements! The engine used is an OS 15FP with 8-5 prop - which worked out well - not over powered but enough to allow takeoff's from our grass field. This model has a terrific flat stable glide. The fuselage is covered with silk span & dope, wings & tail with Solartex. After the colored dope was applied the entire model was then sprayed with automotive two part clear in order to fuel proof. This summer I will fly it with my 2.4Ghz converted Kraft Reeds transmitter for nostalgia sake (and a step up in technology from rubber driven escapements).
MikeFoster - 07/01/2019
Added another nice photo of the completed model, thanks to MikeFoster [more pics 006].
Mary - 21/01/2019
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