Best engine for RD-1

[Arnaldo]

Hi Guys,

I’m building a Bob Hunt RD-1 from scratch. What’s the best engine for it: I have Brodak 40, Os la 46, Os 40 FP, Os 35 FP, OS 25 LA.

thanks for any help.
Regards
Arnaldo Vacca

[Arnaldo]

Hello Bob
Thanks so much for your reply.
Unfortunately here it’s hard to find a Enya 30 or better an OS 32 fsr. May be I will use the Broda 40.
I heard about the RD-1 PLUS, do you have plan of that?

Thanks again and Regards from Italy.
Arnaldo

[Scott Richlen]

Bob:

What is the relationship of the RD-1 to the Prowler?  They look similar.