Probe - plan thumbnail image

Probe - completed model photo more pics (1)

by Bryan Barfoot
from Radio Modeller
August 1974 
60in span
Tags: Glider R/C
all formers complete :)
got article :)

Submitted to Outerzone: 17/06/2017
Outerzone planID: oz8883 | Filesize: 624KB | Format: • PDFbitmap | Credit*: Circlip, RFJ


About this Plan

Probe - Radio control slope soarer. A high performance slope soarer for pylon racing and sport aerobatics.

Quote:- "Probe was originally conceived for slope pylon racing. I gave it a vee tail to save weight over conventional layouts, and to ease the tendency to weather-cock when flown close along the ridge. Flaps. to help stay up when the wind drops, (although subsequent Probes built by other local club members appear to perform almost as well without them), a swept back wing planform to make it look as if it is flying fast even before you launch it, but mainly to aid stability. I have flown Probe in winds from 40 mph down to 5 mph, which on our slope is the least in which any model will stay up - even an Amiga.
A tow-hook fitted 30 deg. ahead of the CG and I had a strong wind, flat-field soarer. It is quite stable on hand and electric winches, enough height being gained just to stooge around for a few minutes or to show off with loops and rolls, about three of each being possible before landing.
Being so docile when flown slowly, I would have no hesitation in recommending the Probe as a first aileron model for someone progressing from rudder and elevator (you won't have to extend your gear), or perhaps for the power flyer wishing to dispense with that horrible mucky fuel and noise. Finally there is less than ?2.50 worth of balsa in the whole airframe (or was, at the time this was written!) so it won't break the bank to build."

Probe, Radio Modeller, August 1974.

Direct submission to Outerzone.

Supplementary files

Article pages, thanks to RFJ.


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* Credit field

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