VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics

  #1  
Old 12-28-2019, 10:04 AM
BDFLYER BDFLYER is offline
 
Join Date: Aug 2013
Location: Maryland
Posts: 18
Default ULPower 520iS MAP Power Output Estimates

I am using an Airmaster variable pitch prop (VPP) and a question came up during Phase I planning which I did not have a good answer for.

Essentially, normally with a VPP one would know current power output of the engine as a point in a performance chart using MAP. For instance, this one for an IO-360: http://grtavionics.com//media/Percen...60A-200-HP.pdf

However, AFAIK, no one seems to have a MAP-based performance chart to judge power output separate from RPM for ULPower engines. UL only has issued performance charts using RPM, and as such, they are not overly useful for knowing power output when using a VPP, AFAIK.

Questions:

1) How would you suggest estimating power output and power settings in this scenario with the VPP?
2) UL requires the engine be operated under 2800 RPM for the first 10 hours. If the latter, then how is the power output setting determined when using a VPP?
3) Anyone have experience with ULPower and VPPs for which they can provide some thoughts and experience?
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 11:42 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.