Greg,
I thing you are a little confused about the meaning of the term NA. It means normally aspirated, as opposed to turbocharged (or supercharged, or "blown"). Most flying rotarys are using fuel injection (as opposed to carburation). Why one instead of the other? Lets put it this way - almost every car made in the world today uses fuel injection. Most (designed in the 1940's) aircraft use carburators. Carburators are more simple and can be easier to install. That is about the only reason to use them anymore, now that we have good computer systems for use in aircraft.
Keep following the list, all these Q's will be answer
ed over time.
JMHO
Dave Leonard
Th
anks Tommy,
Those sound like great numbers. Could you tell m
e what the PSRU ratio is?
Also, what your air/fuel ratio was?
E
d's
spre
adsheet indic
ates that at
5,500' at 5,000 rpm, a NA 13B fuel burn would be about 10.8 gph. Is your
power plant a NA 13B or is it fuel injected?
Along these l
ines, is an
yone using fuel injection on their rotary? If so
why, if not wh
y not? Simila
r question for electronic ignition. These seem
like no brainer typ
e installatio
ns, but I notice that there are significant
numbers of NA 13B's f
lying, so obvious
ly I am missing something.
Appreciate the report and look forw
ard to more information
.
Warm Regards
,
Gre
g
Hi
Guys,
Today,
While cruising at 5500' and 5000rpm, the EGT was reading around
1675. Then about two hours into the flight, there was a slight loss
of power to around 4800rpm, but the EGT shot up to 1800 where I have the limit
light set. I had the mixture set with 0-1 bar showing in the mixture
meter. To lower the EGT, I made the mixture richer to 5-6 bars. and the
temp came down but stayed around 1750 for the rest of the day. Any
guesses?
Thanks
in advance!
Tommy
James<><
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