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There's an English built airboat 3 blocks from my house in a state of disuse
and disrepair. It has two SMALL rotary engines. Maybe I should get busy
persuading the old owner to sell them to me - or anyone else who might want
to overhaul/refurbish them - been sitting out in the SE Texas Gulf Coast
humidity for maybe 15+ years.
If anyone is interested, I'll contact the owner - I have his number, if he
hasn't passed away.
David Carter
----- Original Message -----
From: "Richard" <unicorn@gdsys.net>
To: "Rotary motors in aircraft" <flyrotary@lancaironline.net>
Sent: Monday, January 12, 2004 6:21 PM
Subject: [FlyRotary] Re: 100 hp options.
Message
----- Original Message -----
From: Russell Duffy
To: Rotary motors in aircraft
Sent: Monday, January 12, 2004 4:49 PM
Subject: [FlyRotary] Re: 100 hp options.
I intend to build a Zenair CH801 (13B), at the moment it is not approved
by the PFA, my second choice is a CH701. My dilemma is ; to match a rotary
to 100hp efficiently would it be best to "make" a single rotor, run a 13B
direct, de-rate a 13B/PSRU or use the Soob EA81 that I already have.
Hi Tony,
Welcome to Flyrotary. We're a pretty civil group here, so fear not :-)
As for your engine choice, I think the only reasonable Mazda rotary option
for 100 HP is the single rotor. The normal 13B probably won't give you an
acceptable power to weight ratio for only 100 HP. For example, the "normal"
installed weight for a 13B is around 325#, which is a lot for only 100 HP.
The good news is that several folks, including Richard Sohn (on the list)
are developing some promising single rotors.
There are also some commercially available, smaller rotaries that would be
suitable, but they're expensive, and somewhat unavailable.
Cheers,
Rusty
Hi Tony,
I am attaching the data sheet of my One-Rotor converion.
The prove of principle version has run 5hrs. primarily for temperature
cycles. The prototype version, which will be flyable, is in the works right
now. I will fly the prototype in my plane, hopefully sometime later this
year.
I have no real plans yet of how to make it available to others.
Richard Sohn
N-2071U
unicorn@gdsys.net
www.gdsys.net/WWWmembers/unicorn/
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