[NSRCA-discussion] Weight History

Fri Jan 27 10:01:57 AKST 2017

Ron,  You are allowed to remove the electrons from your battery if you want to weigh without fuel too..  :)

  *    Robert Beaubien
  *    DronePlastics.com

"Dear Algebra, Please stop asking us to find your X.  She's never coming back and don't ask Y."

From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Ronald Van Putte via NSRCA-discussion
Sent: Friday, January 27, 2017 12:00 PM
To: General pattern discussion <nsrca-discussion at lists.nsrca.org>
Subject: Re: [NSRCA-discussion] Weight History

That is very interesting.

However, I still fail to see the logic that allows glow-powered airplanes to be weighed without fuel, but requires electric-powered airplanes to be weighed with batteries.

I think we should have a rule that both glow-powered and electric-powered airplanes should be weighed in their takeoff configuration.

Ron Van Putte

On Jan 27, 2017, at 12:47 PM, John Fuqua via NSRCA-discussion <nsrca-discussion at lists.nsrca.org<mailto:nsrca-discussion at lists.nsrca.org>> wrote:

It is interesting to look back at the history of weight and displacement limits.

Up until 1966 there were no engine displacement limits and allowable weight was 15 pounds.

In 1966 a .61 cubic inch displacement limit was imposed with an allowable weight of 15 pounds.   Of course nobody could weigh that much and have any performance given the displacement limit.

In 1980 a weight limit of 5 kg was implemented but again nobody wanted to be that heavy because of power limitation.

In 1984 the limit for 4 strokes was raised to 1.20 cu inches and airplanes started to change.

In 1992 a noise limit was imposed.

In 1994 engine displacement limits were eliminated and 4 strokes ruled until the electric era.

In 1996 the 2 meter rule was introduced.

Each change brought about airplane changes.   Bigger, more power but still at 5 kg.

So for 37 years (1980 until now)  the weight limit has been the same.    Seems to me like we adapted pretty well over the years.

John Fuqua
cell 850-974-6655

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