Jean
Rebel 747R
On Sun Feb 10 23:10 , Bob Patterson <bobp@prosumers.ca> sent:
Another VW to look at would be the Aero-V from the Sonex folks ....
The problem with VW's and Jabiru's is that the peak power comes in
past 3,200 rpm - this means a short prop, which doesn't work well with
the fat Rebel fuselage stopping most of the meager wash ...
I suspect you could fly a Rebel with the 80 hp or so .. VW engines, but
you would likely get the effect of maybe 65 hp - still flyable, but not
great performance. The Rotax works so well because the gearbox
allows a longer, slow turning prop - lots of torque & pull.
My 80 hp. Rotax 912 took over 600 hours just to break-in !! There
are several of these engines still pulling training aircraft after 4,000 +
hours, with only minor maintenance. They require 'way less regular
work than Lycosauruses or Clunktinentals !
Total parts cost to run my 912 for 1,000 hours was about $700.00,
including spark plugs & oil filters. To run my Lycoming O-235 for
1,000 hours, parts cost (not incl. LABOUR !) was about $7,000 !!
(2 cracked, worn cylinders, exhaust system, 1 magneto, carb overhaul ...)
.... and it burned almost twice as much fuel !
You pays me now, or you pays me later !!! ;-)
--
......bobp
bobp@prosumers.ca
http://www.prosumers.ca
http://bpatterson.qhealthbeauty.com
http://apatterson2.qhealthzone.com
http://apatterson2.ordermygift.com
-------------------------------orig.-------------------------
On Sunday 10 February 2008 20:56, Ken wrote:Has anyone considered VW engine such as Great Plains or a Corvair for
cheap power?
At LSA weights I'd think it might be viable if you just wanted to fly
economically and not go fast... Remember engine weight is only part of
it, engine + fuel weight for the mission is what counts.
There is a good recent VW thread on the RAH list.
Ken
Keith Leitch wrote:Charlie,
That is the main reason for my question. I have been heavily
researching the Rotax and like you, I noticed the price has gone up to
where I feel it will not be feasable for me to use one. I also have read
where places that use them a lot have a hard time getting them to reach
TBO. And repair is as much as buying a new engine. They do relay that
they are reliable and fuel efficient but to me paying $20,000+ for an
engine that only lasts 1,000-1,500 hrs is NUTS!! That Continental is
looking better all the time. I had planned on an O-320 but now that I
need to go the LSA route I'll have to figure something else out. Another
member on this site is strongly leaning towards the IE260 (?), its a
Scandanavian engine and it does look promising. There is also the Jabiru
than another member is using. I'll definitely be keeping up on the
progress of both of these guys.
Keith
Charlie Eubanks charlie@troyairpark.com> wrote:
Keith
I am building my Rebel to gross at 1320 Lbs. so I can fly it as LSA. I
had originally planed on installing a 100 HP Rotax in my Rebel but the
price in the last 8-10 months has increased a good 30+%. and a used
Rotax is rare and hard to find. As a result the 0-200 Cont. is looking a
lot better even though it is 65+ Lbs. heaver then the Rotax. I would
like to hear from any one out there who is flying a Rebel with 0-200 and
what kind of performance they are getting just operating wheels only.
Charlie E.
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