Major breakthrough in low cost 300 HP psru's for the 20B three rotor.
Turns out Ford came out with a beef up of the A4OD heavy duty
automatic transmission used in the larger F350 heavy duty pickup trucks
starting about 1999. Tracy uses this in his 300 HP rated 
redrive for the three rotor 20B. This is the unit he is testing in his
RV4 as we speak. He reports even smoother operation over the old
four pinion version. This carrier looks like it is cast from
nodular iron while the four pinion was made from aluminum.

Paul Lamar
 
The AirCraft Rotary Engine NewsLetter.              Powered by Linux.

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