Paul Lamar said,
...Perhaps if you went into something like the diesel
mode where you injected it at just the right time to cause
ignition
by the red hot exhaust valve.
"Decker, Michael" wrote:
Mike asks,
So, for me this begs the following question. Have any of the
rotary
crowd
made an attempt at setting up a stock 12a or 13b as a diesel? I
think
it
would be interesting to try. Maybe that would be a good use for
my
$50
13b
core.
Mike
Unfortunately the rotor combustion chamber shape does not lend
itself to
the
high compression required of a diesel. The RR version used in
effect two
Wankels working together to generate the high compression required
which
defeated the compact and light weight advantages of the Wankel in
the
first
place.
That is not to say it cannot be made to run on diesel fuel
however.
Paul Lamar
CBarber wrote:
So it could be made to run on diesel fuel but not as a diesel
(i.e. by
compression) and still need the spark provided by a plug. Would
this
give
any advantage other than potentially cheaper fuel(or just more of
an
intellectual exercise)? Just curious. TIA.
All the best,
Chris
Houston
Christopher Barber
Barber & Pi, LLP
Attorneys and Counselors at Law
11930 S Sam Houston Pkwy E
Suite 103
Houston, Texas 77089-4755
281-464-LAWS (5297)
"Serving the needs of Senior Texans"
CBarber@TexasAttorney.net
www.TexasAttorney.net <http://www.TexasAttorney.net>
Just cheaper fuel. The BSFC is no better.
Paul Lamar
Harrison Young wrote:
Cheaper fuel maybe, but more available fuel definitely. With the
demise of
avgas eminent, it would be nice to be able to run a rotary off of jet
fuel
(kerosene). When operating out of one's home base, most people would
use
diesel because self fueling with automotive diesel would be cheap.
When
traveling, automotive diesel would rarely be available but jet fuel is
everywhere. I fly out of DVT. We can't buy mogas OR diesel, but we can
get
all the jet fuel we want (at a mere $2.85/gal currently). I would be
VERY
interested in a rotary that can burn diesel/kerosene. I think it is
much
more than an intellectual exercise.
Harrison Young
A little note from a non-American:
Outside the US and Canada jet-fuel is typically 2-4 times (or more)
cheaper than avgas, if at all available. The following survey dates
back to December 2002 but is a pretty good illustration of the problem:
Jet A
Jet A
(in Euros/gal; time of survey: 100LL (private
(commercial
December 2002; 1 Euro=approx.1$) avgas operator)
operator)
USA 2.46 2.35
2.35
France 5.49 2.52
2.12
UK 5.72 1.55
1.48
Germany 5.41 3.19
1.68
Italy 7.38 3.63
1.79
Africa (remote fields) 11.36 2.27
2.27
Africa (main airports) 3.05 1.54
1.54
South-Africa 2.08 1.36
1.36
Brazil 3.60 1.27
1.25
Australia 1.27
1.17
I am sure you can understand why non-US pilot are quite eager to see
good jet-fueled GA engines certified and commercialized, no matter if
BSFC is no better.
Francois Badoux
Would you try sending that again Francois. Set your out going message line
wrap to at least 200 characters. Or perhaps to just plain "off". Line wrap
plays hell with tables. Thanks.
In Werner Nuestat Austria last week 100LL was 1.52 Euro a liter and
a Euro is now worth $1.23 US. That is about $7.50 US a gallon.
Not only that it cost 8.50 euro's for each touch and go not
to mention landings or takeoffs. If it is a twin, like a Piper Senica,
touch and goes are 21.80 euro's each.
Now you know why low power airplanes
and sail planes are so popular in Europe. For the life of me I cannot
see why they tax the hell out of the aviation industry over there.
Surely it cannot be the revenue derived. It must just be a soak (what the European
politicians and the people think are) the rich attitude. Surely it does not
help the European economy in general and for sure not the European aviation
economy specifically. While I was at the Werner Nuestat airport on Saturday
for about six or seven hours I did not see or hear one airplane take
off or land. At my small airport in Santa Paula one airplane takes
off or lands every few minutes on Saturday. 100LL is $2.20 US a GALLON.
No wonder Diamond has a major factory in Canada.
Paul Lamar
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