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-   -   High Density Altitude Operations with RV-12 (https://vansairforce.net/community/showthread.php?t=102216)

Flying again! 07-25-2013 03:54 PM

Just for comparison, a C-150 at 2500' on an 85F day has the following performance:
T/O gnd run 1001'
Over 50' obstacle at 1830'
ROC of 490 fpm
DA is 4,827'

RV-12 at 8000' on a 40F day
T/O gnd run 1010'
Over 50' obstacle at 2226'
ROC of 509 fpm
DA is 8,634'

So it is comparable to flying a C-150 out of Fox Field (KWJF) near Lancaster CA during the morning on a summer day which is where I got my license.

funflying 07-26-2013 09:54 AM

First Flight
 
I took my Rv12 up for the first time last evening. The conditions were just to nice to wait until this morning. So I wanted to report on the high altitude conditions and the plane performed very well.

When I set the Baro the elevation was 5580 and with the cooler temperatures in the 80's density altitude was not a factor. My static RPM w/WOT was set at 5140 and the plane climbed well on take off. I maintained 60kts and the RPM was 4940. Once I leveled out at 6800 I pulled the power back to 21inches of MP to let things settle for a few laps around the pattern. The fuel pressure was the only thing in the yellow at 1.9-2.0 and everything else was very normal.

When I did go to WOT for a stretch the RPM rose to 5540 and the temps went up slightly. I didn't stay there long but did have a slightly heavy left wing but nothing severe. The ball pushed out to the right about a quarter, but no weird vibrations. 30 minutes and I was back on the ground, cowl off and everything looked good. I leave my prop where it is for now and research the fuel pressure.:D

GhostRider32 07-26-2013 10:00 AM

Glad it went well for you. I look forward to the day that I can say "I took my RV-12 up for the first time." :)

RFSchaller 07-26-2013 12:39 PM

Pat,

Congrats! Too bad the wind didn't cooperate for us to fly when you were here in PHX.

Rich

Tom Delaney 07-26-2013 03:22 PM

Congratulations Pat!
 
I am waiting out the rain and winds here in St Louis for my first flight.

It was nice meeting you during transition training with Jetguy..

Bill_H 07-27-2013 11:51 AM

Be sure to email vans that you are flying! And ask what number flying RV12 you are and post that.


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