[NSRCA-discussion] Weight History

[Ed Alt]

That's been overruled by the FAA, hasn't it?  Over what, 9 oz, we're all flying drones now?

On Jan 27, 2017, at 2:19 PM, Vicente Bortone via NSRCA-discussion <nsrca-discussion at lists.nsrca.org<mailto:nsrca-discussion at lists.nsrca.org>> wrote:

I think the 5 kg is the international definition of model airplane.    I think for world record recording the model has to be below 5 kg.   Probably a reason why we got the 5 Kg.


On Fri, Jan 27, 2017 at 1:07 PM Dave Burton via NSRCA-discussion <nsrca-discussion at lists.nsrca.org<mailto:nsrca-discussion at lists.nsrca.org>> wrote:

My memory is a little fuzzy on this  but I seem to remember a square inch rule back in the 70's or early 80's. It may have applied only to FAI class but that's fuzzy too. "Back in the day" FAI was never flown in local contest or NATS, only at team selection time. Local contest started including FAI as turn around sequences came about because pilots (some) wanted to try turnaround and the guys flying for a spot on the team wanted more FAI flights in contest.



From: NSRCA-discussion [mailto:nsrca-discussion-bounces at lists.nsrca.org<mailto:nsrca-discussion-bounces at lists.nsrca.org>] On Behalf Of John Fuqua via NSRCA-discussion
Sent: Friday, January 27, 2017 1:47 PM
To: 'General pattern discussion'
Subject: [NSRCA-discussion] Weight History



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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Vicente "Vince" Bortone
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