Banker

 

Banker - plan thumbnail image

Banker - completed model photo

Banker  
by Chris Grubb
from Radio Modeller
September 1967 
45in span
Tags: IC R/C
all formers complete :)
got article :)


Submitted to Outerzone: 24/11/2017
Outerzone planID: oz9488 | Filesize: 380KB | Format: • PDFbitmap | Credit*: Circlip, RFJ

   

About this Plan

Banker - Radio control model for single channel with ailerons only, for 1.5cc power.

Quote: - "The urge to progress, to improve on one's flying ability and to try out new developments, led to the building of this model, as a determined effort to get out of the rut. Aileron-only control seems to be used a great deal in Japan, so I thought there must be something in it. Now I would not revert to rudder - unless it was to try kick-up elevator again.
You see, the Banker was originally fitted with kick-up elevator and this proved only partially successful in that, although it would loop and half-roll off the top, it had a nasty habit of pointing its nose up at about 60 degrees every right-hand signal. The Elmic Compact escapement rotates through the up-elevator position after each left signal and the elevator, therefore, kicks-up just before right-aileron, causing this to happen. I have since removed the elevator function and Banker flies very smoothly indeed. Spiral dives are fairly wide, and the model will loop and roll, etc., using normal rudder flying techniques.
A low-wing configuration was considered to be a little dodgy for a first try at aileron-only, hence the somewhat stereotyped general layout. Construction was kept simple and the fuselage is wide enough to take most receivers. The wing features a full-depth sheet spar, and wide leading-edge sheeting. The engine used on the original is the O.S. Max 10, which gives ample power. Radio gear is a MacGregor Minimac receiver, Elmic Compact escapement, coupled with Fred Rising clockwork actuator for motor speed control.
If the model is to be used without the motor-control or the 225 DEACS shown. it would be advisable to lengthen the nose by about 3/4in to keep the centre of gravity in the correct place without ballasting.
Construction: When choosing your balsa, select the correct grade of wood for each part..."

Banker, Radio Modeller, September 1967.

Direct submission to Outerzone.

Supplementary files

Article pages, thanks to RFJ.

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Notes

* Credit field

The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.

Scaling

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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