I haven't written to this group in awhile, but thought I would try and get some info.
I am currently building a Don Smith B-24. Its a joint project on building time and funds.
My question is what engine: Saito 100 or the OS .91 Surpass pumped.
I have done the research and like the Saito 100 for power to weight. My partner thinks the pump would be good for reliability. I have read some threads that indicate a problem with the pump.
Anyway, any solid first hand experience you can share.
Mike