Ronen wrote:

I would like to ask whether you (or other subscribers) know of a
reduction box which combines the output of two rotaries into one prop
shaft, while enabling individual operation / sut-down of each of the
two engines?

Ronen,
What is it about your mission requirements that mandate that you have
only one prop?  Would co-axially mounted contra-rotating props meet your
mission requirements? If so, the UK "Fairey Gannet" (an old military
plane) had such a system and you may be able to copy their PSRU.  Also,
the de Leon (iirc) brothers of some South American country (Argentina
perhaps or Brazil) have such a system using belt PSRUs and Suzuki
engines that you might could copy. Their aircraft was written up in
Sport Aviation several years ago.

Russell Kent



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