Hanger Rat - December
The competition is for the ever popular and superb flying Hangar
This came about when BML was talking to the Chairman of the
Nottingham club, Richard Granger and Richard mentioned that they run a Hangar
Rat competition at their Indoor meetings. Brian thought this a splendid
idea and put it forward. I too thought it a splendid idea and
So.......The Rules.......as Andy Sephton reminds us...First.
READ THE RULES...... here they are. (Richard, forgive me for pinching your
rules, but they are so good, it seemed unchivalrous not to use them.) If I have
got any wrong, I apologise beforehand and I promise I will fix and announce the
corrected versions immediately.
THE RULES It is a standard size Hangar Rat, built to the plan.
It will be paper (tissue) covered, no films allowed. (I assume this can
include condenser tissue?)
It will use a commercially available plastic
propeller. (further clarification below.)
It will be rubber powered. (just
in case you thought you'd get away with it Ian)
All scoring flights will R.O.G. (This is a must...hand launched
models will score ZERO) The undercarriage will be exactly as per plan...this
includes the wheels (no exceptions, there will be a height gauged check on the
high scoring models.)
There is no weight limit on the rubber.
a/ It may be balanced by adding weight to the light blade
b/ It may have the hole for the propeller bushed with suitable
tube with a view to re-aligning the shaft hole. (so it's straight)
c/ Flashing on the blade edges may be removed, but no sanding
of the blades allowed. balance is by adding weight. Now, you will notice that
there is no weight or size limit to the propeller. This allows the flyer to
make the best choice for his or her model, and the diameter will be governed by
the need for the model to ROG. (this also excludes thin floppy lightweight
guitar string U/C's, they will have to be strong enough to support the model as
it ROG's) No Bamboo u/c's either.. as ...per...plan.
No limit to the number of flights.
PLANS & INSTRUCTIONS
They are all .pdfs, click on the
appropriate heading to download.
2 Hangar rat plans.
A Rat ONE - - -
ONE - - - Two
they both print out full size, 2 pages for each, join
with clear tape. Choose one, or both.
Instructions on how to build them. - - -
A page of
A plan for a 50% version called
which may be worth having a competition for.
Cricket Rules: Regular and Unlimited.
Models to be built as per plan including the
use of the propellor/nose bearing assembly: tissue covered with a minimum
weight of 9 grams excluding rubber motor. Models will be weighed , and ballast
may be used. The prop must be the one supplied with the kit & can be
balanced by adding weight to the lighter blade. (I will get a supply of prop
assemblies, at 40p. Each.) The rubber motor is at the flyers discretion,
using as much or as little as you wish. The only exceptions I will allow are: A
piano wire prop shaft, as the original bends too easily. You may choose to bush
the nose bearing Also, a better rear hook may be substituted.
The model must conform to the plan outline
(ie. No big tailplanes.) And thats it! Everything else is allowable. Wing
posts instead of a sheet pylon. The best indoor prop assembly that you can
make, curved ribs, film covering, condenser tissue if you prefer & the best
wood you can find. No weight limit. As an example, I made one that weighed a
fraction under 3 gm. Which did !M57Sec under the eight foot ceiling at Peakirk,
and nearly four minutes at Oundle. Should folk be interested in trying this
class I will do a building demo at Peakirk to give some ideas to use as a
starting point. My best one used a prop based on a plastic yoghurt carton and
guitar string shaft Its much easier to do than it might seem. Easier that
an EZB, for instance. Contests to take place at Bushfield, dates to be
From the PMFC Magazine, "Between the Showers", September
Best place for these rules is the IVCMAC web site.
Click for the page, where you can also download a plan.