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No. of STCs: 2

STC Holder: Babcock Paul G 1641 Main Street, So. Waymouth, MA 02190, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA00223BO	Status: Current	App Date: 01/20/2005	Rev Date: 12/21/2005
Description: Descriptive data pertaining to this modification is considered inadequate for duplication in other aircraft. This approval is limited to the installation made in Piper Model J-3, Serial Number 2057. Installation of a Continental A-75-8 engine and Sensenich Model W70DK-40 wood propeller, and components for a 1200 lb. maximum weight.
TC Nos.: ATC 660
Models: The New Piper Aircraft Inc.J-3
ACO: AIR-750: East Certification Branch BOS

STC Holder: Babcock Paul G 1641 Main Street, So. Waymouth, MA 02190, United States		If you are an STC Holder, Contact us to have your company added here!
STC No.: SA00270BO	Status: Historical	App Date: 10/09/2007	Rev Date: 10/29/2009
Description: Installation of a Teledyne Continental A-65-8, A-65-8F, A-65-9, A-75-8, A-75-8F, A-75-9, C-75-8, C-75-12, C-85-8, C-85-12, C-90-8F or C-90-12F engine and corresponding propeller identified under Limitations and Conditions, and components for a landplane maximum gross weight of 1220 lbs.
TC Nos.: A-691, A-692, A-698, ATC 660, TC 695
Models: Piper Aircraft Inc.J-3, J3C-40, J3C-50, J3C-50S, J3C-65 (Army L-4; L-4A; L-4B (Navy NE-1); L-4H; L-4J (Navy NE-2)), J3C-65S, J3F-50, J3F-50S, J3F-60, J3F-60S, J3F-65 (Army L-4D), J3F-65S, J3L, J3L-65 (Army L-4C), J3L-65S, J3L-S, J3P
ACO: AIR-750: East Certification Branch BOS