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I have a 337 from 1981 that reads "Taylorcarft heavy type strut and wing root fittings installed- Part nos BA809L and BA809R and 5/8" O.D. fiber bushings installed to increase gross weight to 1280 lbs land and 1351 lbs seaplane." Do these part numbers mean anything to anyone? This was done on a field approval before I owned the plane and the FAA now wants to know what they can reference this modification to in order to certify my gross weight at 1351. Is there a Taylorcraft drawing that could be used as a referece? The 337 says nothing about a reference to anything.
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Re: Gross Weight Increase
I THINK that those part numbers mean the later F-19 style Spar-Strut fittings, which have the little square plate welded across the steel angles.
5/8" OD bushings are slightly smaller than the 11/16" bushings called out in the usual Harer/Gilberti STC. UNLESS that is for replacing the OUTER spar bushings... and it assumes ytou already have the 11/16" root bushings.
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Bill Berle
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N26451 (1940 BL(C)-65) 1988-90
N47DN (Auster Autocrat) 1992-93
N96121 (1946 BC-12D-85) 1998-99
N29544 (1940 BL(C)-85) 2005-08 -
Re: Gross Weight Increase
As I understand it, you need the C-85 engine along with the items you referred to in the 337 to increase the gross weight to 1280. The modification as noted in the 337 without the C-85 does not increase the weight from 1200.
To go to the F19 and 1500 max gross requires the longer motor mount including C-85, starter, generator, and possibly more mods.
FD
N43684Last edited by Frank DeBartolo; 11-10-2005, 09:55.Comment
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