| A familiar theme crops up in this months Radio Modeller for the What's Old section. Folks writing in to the magazine complaining there is not enough coverage of their particular area of the sport. With ever decreasing time to work on Bumpy Green and even worse less time for building and flying .
I have recently changed jobs and although this has been to a closer location it is in fact longer hours and quite a bit more tiring. With luck I should be back in stride soon enough and begin to catch up with my modelling as well as work on the web side of Bumpy Green. I have however managed a few hours at the electric field with my T-33 which goes like stink on 10 x 1700CP cells.
I was happily reacquainted with an old friend recently and this has led to a possible new writer for Bumpy Green. Phil and I worked together many years ago and when he moved to the South West we sort of lost contact. Having recently bumped into him in my home town and then received a scathing email about my abysmal driving in the TV Show Remote Madness we managed to hook up again. Having learned what Bumpy Green was all about and with a shop to boot, Phil set out on the path of aeromodelling beginning with a trainer and basic training. He has now progressed on in leaps and bounds and frequently shoots up the strip with his Kontronic brushless powered Twin-Jet. Talk about fast, hopefully I will get some pics of it flying and with luck Phil may even have a few words to say about the model and the conversion. |
The
Mini Gloster Gladiator for electric power is a 44" span model featuring
a fully moulded glass fibre fuselage and cowl, veneered foam wings and
many injection moulded components.
The
Mini Pitts for electric power is a 44" span model featuring a fully
moulded glass fibre fuselage and cowl, veneered foam wings and many
injection moulded components.
Developed
over several years alongside the very successful
CAP232 designs. The machined components have been produced on the latest
state of the art CNC machinery, designed, engineered and manufactured
in house. These new techniques have also been utilised in the production
of the various moulds and tooling required to bring them into production.
These
models are close to scale, (20% and 23.5%), in both outline and flying
characteristics and will fly well with a variety of power plants, most
of which will fit inside their large cowlings with standard silencers.
They are intended to be both quick and accurate to build and robust
to operate. 
An advanced ARF trainer with electric
ease.
Smooth
electric power is provided by a 380-class motor, and enhanced by the
included gear reduction unit.
With
a growing number of letters being received asking for more coverage
of various aspects of the sport the RM editorial team threw down the
gauntlet and asked for any interested budding writers to submit articles
of interest for publication. I wait with eager anticipation to see if
they had any better luck then Bumpy Green did when issuing such an invitation.
Vedette designed by George Stringwell. A 72" span dual
purpose V-tail sailplane. Designed to try out a V-tail configuration
with mind to using the design for an FAI task soarer as well George
worked on what he called the SLOTH principle (Simple, Light, On-the-cheap,
Tough, Highspeed assembly) which certainly turned out to be a wining
formula. With a wing area of 3.5sq ft at a loading of 7oz/sq ft it was
able to sustain flight in the lightest of lift and still maintain stable
performance in winds up to 15 knots without ballast.
Flair
Products make an appearance this month with a state of the art '20'
size Pylon Racer called Dara-20.
Peter
Chin returned this issue with Motor Miscellany and mainly
featured the E.D. Sea Lion engine for model boats and gave a historical
insight into the company that has produced engines for models since
1947.
Cover model and main plan feature was the .20 size Hawker
Demon from Gordon Whitehead. 46" span and designed for 4 channel
radio and engines from .20 to .25 cu in. (the latter recommended if
you built on the heavy side)
ANon interesting
article written by Peter Holland was aimed at furthering electric
flight progress by sharing knowledge gained during experiments with
electric powered models. The main theme of the piece is the ability
to position the layout of components within the airframe to achieve
the best balance. This enables models to fly with much reduced moment
of inertia especially with the main parts (ie motor battery radio)
positioned close to the C of G. The second key feature was the use
of prop shafts the enable the motor to be fully inboard mounted. The
relative advantages of rigid or flexible shaft designs were examined
and a number of ways to create lightweight, slop free drive transmission.
Top
of the club shots goes to the men at the Ribble Valley cross country
event which judging by the correspondence received by RM was gaining
popularity fast with a number of events being submitted as well as a
full report and results from the 1977 RAFMAA Championships.
Wimborne MAC proudly
display their Jubilee Flyer which took part in the Dorset Dash. It
covered 100.24 miles in 9 hours around a 12.68 mile closed circuit.
With a gale blowing north easterly the plane was only able to make
headway into wind by diving. Speeds of 60mph were reported for the
model and the task attracted local press and TV who came along record
the event. Most importantly it raised £286 towards club funds.
