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  #1  
Old 02-17-2017, 09:42 PM
N941WR's Avatar
N941WR N941WR is offline
 
Join Date: Jan 2005
Location: SC
Posts: 12,887
Default How well does an RV-9 climb?

Pretty darn good!

After finishing work today, I had some flight testing to do, which required a climb from 1040' AGL to 12,500' AGL. Every 1,000' feet I leveled off to let the plane accelerate, throttled back, powered back up to full power, and then resumed the climb.

I just checked the data and it took 13:08 from brake release to level out at 12,500. My average climb rate was 871.3 FPM and my average speed was 122.4 knots. That's pretty impressive and makes me want to try a Vy climb from sea level to 12.5.

I was still putting out 18.7" MAP at that altitude. (The pressure altitude was 14,930.)

BTW, my plane as a stock ECI O-360 and a FP Catto two bladed cruise prop.
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Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
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  #2  
Old 02-17-2017, 10:07 PM
Mark C. Mark C. is offline
 
Join Date: Nov 2009
Location: Schaumburg
Posts: 119
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Bill, what was your TAS, level flight at 12,500? Mark C.
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  #3  
Old 02-17-2017, 10:19 PM
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N941WR N941WR is offline
 
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Mark, I'm not really sure since I didn't do a speed run. Almost as soon as I hit 12.5, I throttled back and started down hill. (I was testing the EIC at different power settings, not the airplane.)

The data shows 162 knots but I wasn't leaning for best power. The SkyView was showing 58% power and 9.6 GPH.
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Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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  #4  
Old 02-17-2017, 10:24 PM
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N941WR N941WR is offline
 
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Mark, my WOT and leaned for best power (75%?) at 8,000' DA is 174 knots.
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Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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  #5  
Old 02-18-2017, 06:30 AM
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grubbat grubbat is offline
 
Join Date: May 2012
Location: Ga
Posts: 688
Default Sounds fun

Time to climb to 12,000? Guess this needs to researched. ��
I could do it from say 900msl to 12,500. Best climb rate in the -9 would be around 105 TAS so no flaps.
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RV-3 Sold
RV-4 Sold
RV-6a Sold
RV-9 Lycoming with CS, Built and Flying
1976 Aerostar 600A, Bucket-list twin
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  #6  
Old 02-18-2017, 07:21 AM
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N941WR N941WR is offline
 
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Location: SC
Posts: 12,887
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Craig, when you get out of Phase 1 we can meet at Brunswick and do it out of there.

Maybe Mark and Bruce will join us.

I wonder how we would stack up against a Rocket, if we continued to 17 5? Will our wing make up for the lack of power as the air density drops off?
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
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