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Old 07-11-2017, 08:48 AM
Raymo's Avatar
Raymo Raymo is offline
Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
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Originally Posted by ALMARTON View Post
When you state those altitude numbers in you post it is Density Altitude or indicated (pressure altitude)?

Many thanks
That is indicated altitude. DA was about 2k higher.
RV-7A - Slider - N495KL - First flt 27 Jan 17
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Old 07-11-2017, 11:14 AM
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AlexPeterson AlexPeterson is offline
Join Date: Sep 2005
Location: Maple Grove, MN
Posts: 2,045

Originally Posted by ALMARTON View Post

The only one oddity (to me) remaining is the fuel flow with the engine warming in idle (1000 rpm) indicates up to 4,5 gal/h (about 16 lts/h) but after warmed up it drops to 3 gal/h (about 9 lts/h) - That phenomena important to say happens now that is winter here (cold days about 59F / 15 C). Cruise consumption at 155 kts (TAS) is about 9 gal/h ! (confirmed) = 34 lts/h

Is that NORMAL? Do you verify that variation (idle warming flow vs idle hot flow) on your operations?

This phenomenon has be noted before - no one, to my knowledge, has figured out exactly why. Mine has done this for 16 years. My sensor is between the fuel servo and flow divider. It has been discussed on these forums. I recently re-configured the physical location and orientation of my sensor (for other reasons), and it seems to be much better.

Glad you seem to have found the solution to your larger problem!
Alex Peterson
RV6A N66AP 1600+ hours
Maple Grove, MN
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