Tracy Crook wrote:

See answers imbeded:

David Mix wrote:

Hi Paul,
Perhaps you or an ACRE reader could answer some basic questions for me.

1.) Where do NEW 20b's come from? i.e. U.S. distributor name.

No such thing.  Engine builders like Bruce Turrentine can build them from
parts though.

2.) Are 20b's available without EFI, as RWS has that base well covered?

See above

3.) What's the price?

Contact Bruce

4.) Who has - or is developing - a PSRU for the 20b?

We (RWS) make the RD-1B for the 20B engine (up to 300 HP continuous)

6.) What are the overall "box" dimensions from the prop flg - l,w,h? and

wet

+/or dry weight?

Bare block 20B weighs 247 pounds.

7.)Does anyone have speed/torque curve for 20b's - N/A and turboed -
preferably at the PSRU prop shaft, maybe even overlaid on a LYC IO540

curve?

This seems like the closest std catagory A/C powerplant for comparison.

No realistic curves available in our application & configuration.  Your
comparison is a good one.  Think of 20B as an IO - 540 replacement and you
won't be dissapointed with the power

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

 
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