RNDMTRS4EVR wrote:
Hey guys help me out here, Isn't there a engine shop that is now making brand new PMA'D cylinder assy. for some of the more popular Pratt & Whitney engines?
There is a recent invention of modified R-2800 cylinders for the R-1340. Aero Engines quoted about $70K for an overhaul with those cylinders compared to about $30K using the cylinders I had. Are you sure they are making them or just offering them?
Quote:
It is also interesting to note that one company is now manufacturing new R-1340 cylinders with investment cast cylinder heads and that some enterprising individuals have found a means of adapting Pratt & Whitney R-2800 front cylinders from B series engines to R-1340s, allowing an increase in the allowable continuous maximum horsepower.
http://www.enginehistory.org/air-cooled_cylinders_3.htmQuote:
STC Number:
SE01200LA
This certificate issued to:
Aircraft Cylinder & Turbine Inc.
STC Holder's Address:
10959 Tuxford Street
Sun Valley CA 91352
United States
Description of the Type Design Change:
Installation of Pratt & Whitney R-2800 engine cylinder assemblies on altered P&WA R-1340 engine models per Aircraft Cylinder & Turbine Inc. master drawing list no. 603, Rev J dtd 5/20/00 or later FAA approved revisions.
Status:
Issued, 09/10/2001
Quote:
Pratt & Whitney R-1340 Engine Saved from Extinction
San Antonio, TX
Tuesday, April 27, 1999
Engine Components, Inc. is proud to announce to the industry it has received FAA/PMA approval for the manufacture of new replacement cylinders for the P & W R-1340 series engines. Combining the time honored tradition of sand casting with an upgraded A242-T76 casting alloy (which is the same alloy used on many later built Pratt & Whitney cylinder heads) and specifying the casting quality in structural sections to be equivalent to Mil-Std-2175 Class 1, Grade B ensures the highest possible standards for complex aluminum alloy castings.
ECi's design incorporates the OEM "Heavy Head" configuration and maintains structural sections to high limits for optimum fatigue life.
To address the skirt flange cracking problem which has plagued overhauled cylinders in recent years, the skirt relief has been eliminated. These new replacement cylinders are available with through-hardened Pratt & Whitney style Airmotive™ steel barrels.
The castings are produced under radiographic control to appropriate plates in ASTM E-155 while machining is accomplished on state-of-the-art CNC machining centers to provide a level of design conformity that equals or exceeds the original production cylinder.
The ECi R-1340 cylinder for Pratt & Whitney engines will be distributed exclusively by ECi and Sun Air Parts of Valencia, California and their appointed dealers. For more information, contact ECi at 1-800-ECi-2FLY (800-324-2359) • Fax: 210-820-8102 or Sun Air Parts at 661-257-7708 • Fax: 661-257-7710
http://www.eci2fly.com/pages/news_relea ... .aspx?n=29