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Hi Greg;
I think you are mistakenly believing that NA means carbureted. It means
Naturally Aspirated (or normally aspirated) or in other words - not
turbocharged. Most installations are currently fuel injected and I would
guess that most of those use Tracy's EC2 injection/ignition controller.
There are a few turbo installations in progress and I think that besides
myself there are a few others flying.
There are a few carb installations flying as well. Finn? Peter?
S. Todd Bartrim
Turbo 13B RV-9Endurance
C-FSTB
http://www3.telus.net/haywire/RV-9/C-FSTB.htm
"Whatever you vividly imagine, Ardently desire, Sincerely believe in,
Enthusiastically act upon, Must inevitably come to pass".
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net]On
Behalf Of Greg Fuess
Sent: Wednesday, March 24, 2004 3:20 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Fuel Consumption Questions
Thanks Tommy,
Those sound like great numbers. Could you tell me what the PSRU ratio is?
Also, what your air/fuel ratio was? Ed's spreadsheet indicates 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 lines, is anyone using fuel injection on their rotary? If so
why, if not why not? Similar question for electronic ignition.
These seem
like no brainer type installations, but I notice that there are
significant
numbers of NA 13B's flying, so obviously I am missing something.
Appreciate the report and look forward to more information.
Warm Regards,
Greg
-----Original Message-----
From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] On
Behalf Of Tommy James
Sent: Wednesday, March 24, 2004 4:54 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Fuel Consumption Questions
Hi Greg,
Today, In Glastar N78TP, GTW of 1800lbs., I flew 500nm at 110kts
TAS, 5500',
5000 rpm and burned 8 gph. Top speed was about 130kts at 5400 (downhill).
Actually this was the first cross country in 30 years, so I took
it easy on
everything just to get home. :-)
Regards, Tommy James<><
What kind of fuel burn are you guys experiencing that are flying
your 13Bs?
Appreciate any and all thoughts.
Best Regards,
Greg Fuess
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