VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics

  #1  
Old 09-22-2019, 10:34 AM
NinerBikes NinerBikes is offline
 
Join Date: Dec 2018
Location: Granada Hills
Posts: 307
Default Performance Figures for the RV-12

In looking at the performance figures, a distance range is listed for the RV-12 running 5000 Rpm, and also at 5500 rpms.

https://www.vansaircraft.com/rv-12is...raft-details-2


Is it possible or advisable to run the Rotax engine at 5500 rpm on a whole tank of fuel?

I was under the impression that the engine should not be run at full throttle for more than 5 minutes.

Depending on how you pitch your prop, for climb or cruise, is running the motor at 5500 rpms for more than 5 minutes advisable? Or is it pretty close to the "edge". What kind of manifold pressure should be expected, at 7500 ft under normal ATM conditions?
Reply With Quote
  #2  
Old 09-22-2019, 10:40 AM
Azjulian Azjulian is offline
 
Join Date: Dec 2015
Location: Scottsdale, Arizona
Posts: 161
Default

5500rpm is the max continuous rpm of the engine
5800rpm is the rpm they call “take off rpm” and they indicate a limitation of 5 mins at that
Reply With Quote
  #3  
Old 09-22-2019, 10:45 AM
Dave12 Dave12 is offline
 
Join Date: Oct 2010
Location: Elkton, Md.
Posts: 1,458
Default

The 912 can be run all day at 5500. Both of the ones I had seemed to enjoy it.
__________________
Wag Aero Sport Trainer sold and wrecked
N588DF RV12 #336 Sold, alive and well in New York
N73DF RV12 #244 Sold, alive and well in Florida
N91 RV RV9 I wish I could say I built this one! Mark Santoleri hit the ball out of the park on this gem.
Reply With Quote
  #4  
Old 09-22-2019, 10:54 AM
NinerBikes NinerBikes is offline
 
Join Date: Dec 2018
Location: Granada Hills
Posts: 307
Default

Thank you. The friend I fly with, usually runs between 5100 and maybe 5300 rpm.... we usually see about 102 to 107 kt IAS and 115 kt TAS, both coming and going, average, if close to 20 to 25C OAT. Plane is at 175 hrs, motor broken in, and with wheel pants and nose gear fairing.

Mods, can we close this thread?

Last edited by NinerBikes : 09-22-2019 at 04:47 PM.
Reply With Quote
  #5  
Old 09-22-2019, 11:08 AM
Piper J3's Avatar
Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
Posts: 1,570
Default

I run 5500 all the time. You can run above 5500 into the yellow for 5 minutes.
__________________
-
Jim Stricker
Hinckley, Ohio (1OA2)
EAA #499867
PPL/ASEL 1970 - Sport Pilot since 2007
80 hrs Flying Aeronca Chief 11AC N86203
1130 hrs Flying 46 Piper J-3 Cub N6841H
RV-12 E-LSA #120058 AWC July 2012 N633CM
RV-12 Bought Flying Oct 2015 with 48TT - Hobbs now 522

LSRM-A Certificate 2016
Special Thanks... EJ Trucks - USN Crew Chief A-4 Skyhawk
MJ Stricker (Father & CFI) - USAAF 1st Lt. Captain B-17H
Reply With Quote
  #6  
Old 09-22-2019, 11:24 AM
NinerBikes NinerBikes is offline
 
Join Date: Dec 2018
Location: Granada Hills
Posts: 307
Default

Quote:
Originally Posted by Piper J3 View Post
I run 5500 all the time. You can run above 5500 into the yellow for 5 minutes.
What's indicated fuel burn gals/hr on your Skyview 1000, vs actual fuel burn, at that pace?
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 05:56 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.