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  #11  
Old 08-21-2022, 06:24 PM
Traash Traash is offline
 
Join Date: Apr 2007
Location: Montgomery, TX
Posts: 99
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FL 250
IO-540, 2 Slick mags, 75* ROP for max power.

Flew this profile to test the RV-10 service ceiling. Conditions were optimum. Wouldn't necessarily be able to get this high with sub-optimum conditions.Not much additional benifit flying above 20,000.

Refer to picture for conditions.
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  #12  
Old 08-21-2022, 09:49 PM
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douglassmt douglassmt is offline
 
Join Date: Nov 2008
Location: Missoula, MT
Posts: 743
Default MMMV

My 10 will get about 1 gph less than the OP example running ~30 deg LOP, 2360, WOT - throughout those altitudes. Not sure why unless you're not running as far lean as I usually do. Not much difference in TAS for me.
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  #13  
Old 08-22-2022, 08:20 AM
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rvanstory rvanstory is offline
 
Join Date: Dec 2016
Location: New Braunfels
Posts: 538
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Quote:
Originally Posted by Traash View Post
FL 250
IO-540, 2 Slick mags, 75* ROP for max power.

Flew this profile to test the RV-10 service ceiling. Conditions were optimum. Wouldn't necessarily be able to get this high with sub-optimum conditions.Not much additional benifit flying above 20,000.

Refer to picture for conditions.
Howd you program those tick marks on your trim and flap settings? Is that doable in G3X serup? Or do you have VPX or some other device that makes that possible?
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Flying RV10 - N783V
2021 Sun N Fun Reserve Grand Champion
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  #14  
Old 08-22-2022, 11:11 AM
supik supik is offline
 
Join Date: Mar 2014
Location: Bratislava, Slovakia
Posts: 274
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Quote:
Originally Posted by rvanstory View Post
Howd you program those tick marks on your trim and flap settings? Is that doable in G3X serup? Or do you have VPX or some other device that makes that possible?
Adjustable in the G3X menu..

Randy, what is your Surefly setting? FIX or VARIABLE?
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  #15  
Old 08-22-2022, 11:35 AM
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rvanstory rvanstory is offline
 
Join Date: Dec 2016
Location: New Braunfels
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Quote:
Originally Posted by supik View Post
Adjustable in the G3X menu..

Randy, what is your Surefly setting? FIX or VARIABLE?
Thx for info on G3X. SureFly is set for variable timing.
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Flying RV10 - N783V
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2021 Oshkosh Bronze Lindy

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Donation Happily Made 2023
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  #16  
Old 08-22-2022, 03:14 PM
BobTurner BobTurner is offline
 
Join Date: Dec 2011
Location: Livermore, CA
Posts: 8,708
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Thank you, to the posters. I always thought that some day Id file ifr, swap in a mask (instead of nasal cannula) onto my O2 tank, and see how high I could get my 10 to go. But last year I went with Basic Med and let my second class medical lapse. So now Ill have to live vicariously, thru you guys!
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  #17  
Old 09-03-2022, 06:51 PM
robert@jonesrv10.net robert@jonesrv10.net is offline
 
Join Date: May 2021
Location: Las Vegas
Posts: 85
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I generally run my RV10 at 21 and 2300 rpm LOP. I reliably get 170-175 TAS (depending on weight) at 10.5 gal/hr at 10,000 ft. TAS starts to decline slightly at around 15,000 ft. I have a Barrett 540-X 290 hp with a Showplanes cowl. Don Rivera helped me balance the fuel injectors to make all cylinders peak within .2 gal. That was very worthwhile and not that expensive.
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  #18  
Old 09-03-2022, 08:19 PM
Mconner7 Mconner7 is offline
 
Join Date: Feb 2018
Location: Bradenton FL
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Dont forget to try flaps zero above the mid teens, mine is faster than reflex when higher.
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  #19  
Old 09-03-2022, 08:51 PM
Richard Connell Richard Connell is offline
 
Join Date: Aug 2006
Location: Sydney Australia
Posts: 451
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Quote:
Originally Posted by robert@jonesrv10.net View Post
I generally run my RV10 at 21 and 2300 rpm LOP. I reliably get 170-175 TAS (depending on weight) at 10.5 gal/hr at 10,000 ft. TAS starts to decline slightly at around 15,000 ft. I have a Barrett 540-X 290 hp with a Showplanes cowl. Don Rivera helped me balance the fuel injectors to make all cylinders peak within .2 gal. That was very worthwhile and not that expensive.
What prop are you running Robert?

I have the same engine and cowl setup as you but have the 3 bladed Hartzell.
I see very similar numbers to you (maybe a kt or two quicker) but I am only just LOP at about 12gph as Im waiting on one restrictor from AFP still to finish my balancing. I have one slightly lean cyl which peaks 0.5 gph before the rest.
I imagine Ill lose a few kts at 10.5 gph putting us very close.

Cheers
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  #20  
Old 09-03-2022, 09:06 PM
Shays Shays is offline
 
Join Date: Dec 2018
Location: Aurora CO
Posts: 47
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Quote:
Originally Posted by Mconner7 View Post
Dont forget to try flaps zero above the mid teens, mine is faster than reflex when higher.

Interesting.

This is new to me. So flaps 0 instead of -3 above 10K? What type of changes are you seeing?

Thanks,
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