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I put 2 cycle oil into my gasoline (like most
rotary fliers) to eliminate the need for the rotary oil dispenser and
having it consume crankcase oil. I use approx 3/4 - 1 oz per gallon so for
my 38 gallon tanks I would use 38 oz of oil for a 4 - 5 hour flight - so right
around 1 quart. However, I have never needed to refill engine oil in my
500 hours of flying which same can not be said for aircraft
engines.
I didn't hear Dave's talk but disagree with comments
regarding the 16X - I personally believe it is better suited for aircraft use
than the current rotary engines for these reasons.
1. The torque has been double at all rpms - that means you
can swing a much larger prop (or multiblade prop) giving greater performance for
take off and climb
2. The displacement has been increased by 300 cc
which is going to improve power
3. The size of the rotor has been increased in
diameter and narrowed which should improve fuel efficiency.
4. The side housing will be all aluminum rather than
cast iron saving in weight.
5. There are others enhancements, but I think those
are the ones of most interest to aviators.
my calculations indicates it should have no problem
producing 220 HP (possible more) at our typical aviation rpms. - so I am
drooling for the 16X, was hoping they would bring it out this year, but appears
they will not.
But, deciding to put a rotary (or any alternative engine)
in your aircraft is a big decision. So make certain you undertake the
effort for the reasons right for you.
good luck
Ed
Sent: Monday, August 02, 2010 5:43 PM
Subject: [FlyRotary] Bad rotary week
For anyone hoping
that a 16X would show up any time soon: not ... gonna ... happen. No
RX7 and the RX8 is still powered by the Renesis for 2011.
As if that's not bad
enough, when I was at Oshkosh I took in David Atkins rotary seminar. I
came away pretty depressed thinking that I probably won't put a rotary engine in
my airplane. Is everyone else really using 1 quart of oil every 5 hours?
He also
didn't have much good to say about the Renesis in an aviation application which
leads me to conclude that the 16X will fare even worse in aviation applications
as it is tweaked to meet higher EPA requirements and produce more low end
torque.
Is anyone but Tracy
using a Renesis? I'd really like to know what HP you're getting, what the
fuel burn is and how it's holding up.
Thanks,
Dwayne
P.S. I
couldn't find any rotary planes on the field at Oshkosh. Perhaps they sank
into the mud.
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