Builders;
‘Group 2800’ is the section of my conversion manual for Heavy Duty oil cooling systems. The cooler itself is part number 2801.
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These are very popular, nearly 90% of corvair powered aircraft use the 2800 oil system, opposed to the Group 2700 system, built around the stock GM oil cooler. Every engine I have built for nearly 20 years as been equipped with a heavy duty oil system, they just make sense for the great majority of aircraft. As a general rule, the slower a plane flies, the bigger the oil cooler needs to be (because it is seeing lower velocity cooling air and slower planes have more drag and are frequently flown at higher % power settings. )
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Because I have been a recognized engine builder operating the same business for several decades, I have been granted OEM status (Original Equipment Manufacturer) by the Aero Classics parent company. This gives me the ability to buy the coolers in quantity from the factory on the west coast, at good pricing and with quick shipments.
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An example of this: I sell this cooler for $26 less than Aircraft Spruce does, and I frequently have it in stock when they don’t. ( I also sell this particular part to non-Corvair homebuilders ). The Aero Classics 10 row cooler is a good value and a quality product.
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Above, the markings on the Heavy Duty oil cooler. Although these are just for experimental aircraft, they are made side by side with models that have a TSO ( Technical Standards Order ) for certificated aircraft.
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Again, this is another part of my program to increase the inventory to give better part availability to builders. As I explained in my previous story, Price is an important factor, but builders primarily need availability . In this case, I provide both.
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William