Gross increase with STOL?

[hharney]

Jim

It would probably depend on how the STC was submitted. If the STC did not indicate a GW increase and a W&B sheet was not accounted for you would have to go back and re-submit the form 337. May have to get FSDO involved. I can't imagine anyone NOT taking advantage of this but stuff gets through the cracks

I am not aware of any GW increase with the Horton STOL system.

[JimC]

I was wondering if anyone with a Robertson STOL could confirm that they actually did get a GW increase.

[JimC]

I found at least one 337D that most definitely got a GW increase to 4700 lbs with a Robertson STOL. Landing weight was raised to 4465. The brochure only advertises a raise to 4630, but this one somehow got to 4700.

[B2C2]

I have a Robertson equipped 1969 T337D with the original STC paperwork. the differences in GW increase are for NA vs Turbo models.

NA GW is 4630
Turbo GW is 4700

This is true for all models A-G

for my aircraft all weight above 4500 must be carried as fuel, and max landing weight is 4465.

I can scan and post the full STC if you would like.

Ben

[JimC]

A scanned copy of the STC would be much appreciated.

[B2C2]

Sorry for the delay. Here's the scanned document. Interestingly, I am apparently missing pages 3 and 4. These presumably cover the A and B models. I don't know why that is. This is what I have in my log books from when I purchased the plane and it starts with the 1967 models. Since mine is a 1969 T337D it is covered by whats in here. I also have the original Installation and Pilots Operating Handbook supplements for the Robertson STC.

[B2C2]

http://rgl.faa.gov/Regulatory_and_Gu...light=sa1627we



Here's a link to the FAA STC registry page which has the full text as a pdf