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Precision Engine
2200 Airport, suite 20
Owensboro, KY 42301
Telephone 270-684-1083
Fax 270-684-1125
E-Mail precisionengine@mindspring.com


Order form for Grumman AA1, AA1A, and AA1B series High Compression STC's.

The first of two required Supplemental Type Certificates, "STC's" required for these modifications, allows for the modification of the original 0-235-C2C from 6.7 / 1 compression ratio to 8.5 / 1 compression ratio.

The second STC. allows for the installation of a 0-235-C2C high compression modified engine or the installation of a 0-235-K2C engine that already has an 8.5 to 1 compression ratio, in the Grumman AA1, AA1A, or AA1B aircraft.

The modification of the original 0-235-C2C engine requires that the crankcase be modified by the installation of 7/16" crankcase thru bolts and cylinder corner studs. Engine baffling must be upgraded to late model baffling as used on Grumman AA1B serial # 280 and subsequent.
This late model baffling is a tremendous improvement in regard to cooling compared to the early versions, even if you are flying the stock engine.

The STC. requires the use of the McCauley Model: 1A105/SCM7153 climb prop, up to and including the 7157 cruise propeller, which is the model most of our aircraft came from the factory with. Check your prop model number.

Grumman Service Kit for the addition of an oil cooler must be complied with or the ADC. oil filtration unit must be installed to keep oil temps in check, this is a real good idea even on stock aircraft.
Per STC. minimum fuel grade is 100LL, fuel tanks must be placarded for its use. Auxiliary Data Plates must be installed on aircraft and engine. Please complete this order form as completely and legible as possible. As STC. Holders we are required to keep track of aircraft and engines that are modified per our STC's.
Please return this order form via mail or fax. This information will also be inserted into your "Contract for License for use of Proprietary Information" of our STC., that we can mail or fax to you.

We require that signed and dated contracts be returned to us via mail, with a check for $500.00 payable to Precision Engine, STC., will be shipped within 24 hours of receiving contracts and check. Normal shipping via mail is included in price of STC.. Please add $20.00 handling for overseas orders or overnight delivery of STC. in USA.
Sorry we do not take credit cards, but we can do wire transfers for overseas customers.

 

Date of Order________________________________

Sales Persons Company and Name_________________

Customers Purchase Order Number_______________Precision Engines STC Serial #____________________

Aircraft Registration Number, N _______________Aircraft Model___________Aircraft Serial #___________

Engine Model: 0-235-C2C, Engine Serial # L- _______________-15

Registered Owners Name______________________________________

Address______________________________________

_____________________________________________

_____________________________________________

Phone # Home_______________________Work_______________________Fax_______________________

E-Mail_________________________


Overhaulers Name___________________________________________

Address___________________________________________

___________________________________________

___________________________________________

If a big shop, Managers or IA's Name_____________________________

Phone # Home_______________________Work_______________________Fax_______________________

E-Mail________________________


Installers Name_____________________________________________

Address_____________________________________________

____________________________________________________

____________________________________________________

If a big shop, Managers or IA's Name____________________________

Phone # Home_______________________Work_______________________Fax_______________________

E-Mail________________________

Please return this order form to Precision Engine via mail or fax. Thanks for the order! Bill & Carol Scott, Precision Engine