Tinker - plan thumbnail image

Tinker - completed model photo

by David Boddington
from RCME
March 1972 
45in span
Tags: IC R/C Biplane
all formers complete :)
got article :)

This plan was found online 18/05/2017 at: https://www.rcgroups.com/forums/showpost.php?p=37585999&postcount=764
Outerzone planID: oz8754 | Filesize: 664KB | Format: • PDFbitmap | Credit*: tshin_ho


About this Plan

Tinker - Radio control sport biplane model. A 45 inch wingspan model for single channel and 2-3 function radio control and 1.46 - 2.48cc (.09 - .15 cu in) engines.

Quote: - "Although the 'Tinker' was first doodled on the back of an evelope some four or five years ago it has taken until now for it to materialise into an actual flying machine. The doodle itself resulted from the successful test flying of the 'Tyro' S/C design and the thoughts that, with some modifications., it would adapt to a biplane.
Fortunately the wait proved well worthwhile as the Tinker has proved itself to have the same pleasant flying characteristics as its forerunner. It is equally suitable for S/C or 2/3 function lightweight multi radio equipment or, with its inherent stability, would be satisfactory as a free-flight model (if it is permissable to mention such things in this magazine). With single channel radio fitted the Tinker has a very low wing loading and is slow flying with a very 'floaty' glide ideal for those calm summer evenings when you want a little relaxed easy flying. However, when a stronger wind has to be contended with it will be necessary to modify the trim of the Tinker by introducing a little down elevator and/ or increasing the wing loading by adding weight under the balance point. This is a technique used a lot in slope soaring but it can be equally effective for other forms of radio control flying.
The 'Tinker' has the ability to hold a very tight turn, particularly to the left, without losing height provided that some up elevator can also be introduced..."

This plan appeared in the David Boddington book 'Radio Control Primer', printed 1974. This scan of the plan is from that book.

Update 27/05/2017: added article, thanks to RFJ.

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