>>http://cgi.ebay.com/ebaymotors/1966-th-55-269A-in-exelent-
condition_W0QQitemZ4601773209QQcategoryZ63680QQrdZ1QQcmdZViewItem>>
>>it,s rotary powered
>>
>>Tony
>>
>>
>>I contacted him to see if I can go over and take some better
pictures>> of the engine installation. Looks like the big problem is
cooling as
>> usual.
>>
>>Paul Lamar ...No rotor no motor.
>>
>
> I would break the piggy bank for that one. :-)
>
> It would be nice to get the full engineering perspective on the
rotary> installation.
>
> LeRoy Grubbs
>
>
> I am working on it :)
>
> Paul Lamar ...No rotor no motor.
>
>
> Here are a few pictures. The plumbing needs to be changed for the
water cooling. So too the fuel supply plumbing needs to be
switched over
> to AN. You don't want to stake your life on 35 cent hose clamps.
>
> The big question is the FAA going to take kindly to a certified
aircraft> with a rotary engine? I think they frown on this or
everybody would be
> doing it to bypass the annual inspection requirements. Check
with your
> local FSDO
>
> The engine is stock everything so it started life with 160 HP or
so. A
> large fan has been mounted on the water pump shaft and my guess
it is
> sucking down 20 to 30 HP at 6000 to 7000 RPM. Net HP out of the
engine,> depending on the exact reduction ratio, is about 130 to 140.
Too little
> for this large helicopter. The answer is to p-port the stock
engine and
> or trash the fan and move the rad and oil cooler from in front
of the
> engine up underneath the rotor blades horizontally oriented
for max
> air flow.
>
> Paul Lamar
I would guess this thing NEVER had an N-number, and was purchased
surplusfrom the military. Registering it with a standard
airworthinesscertificate would be very unlikely unless you went back
to the 180hp
Lycoming. I would only persue that if I had interest to operate the
thing
for-hire. Even then, it might be challenging. I don't know how
T34's and
the like are handled. Otherwise, getting an experimental exhibition
category certificate probably wouldn't be too hard. You could very
ostensibly fly it as a warbird (best case), or as an engine test bed
(worst case). The bad part about certifying it as a test bed
airframe is
that I believe the cert limits you to a 50mi radius of operation (or
similar). I'm not sure I would really want to fly it much further
thanthat, so maybe that's okay..
Matt-
I take it, you people down in the US, can't roll a certified a/c over
from certified to experimental? We have a rule in Canada that
allows us to do "owner maintance" and makes the
airframe an experimental. Thats the broad stroke's version anyway. In
that way it wouldn't be too big of a deal to get it registered in Canada
[at least I don't think so] it certainly doesn't apply for the 51% rule.
Jarrett Johnson
The owner-maintained certification option hasn't been available in the US.
Regards,
Matt-
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