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Temperature Altitude #4536100
10/07/17 10:32 AM
10/07/17 10:32 AM
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
bigj_16 Offline OP
bigj_16  Offline OP
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
There was discussion on the UOA section about altitude, etc. I ran across this paper. Has a a lot of different interesting points in it. I would assume it is about drone engines.
http://www.dtic.mil/dtic/tr/fulltext/u2/a576150.pdf

Re: Temperature Altitude [Re: bigj_16] #4536108
10/07/17 10:48 AM
10/07/17 10:48 AM
Joined: Oct 2009
Posts: 3,227
Wet side WA
JohnnyJohnson Offline
JohnnyJohnson  Offline
Joined: Oct 2009
Posts: 3,227
Wet side WA
Believe it or not this was written when Obama was in office he must have missed this "“Praise God from Whom all blessings flow.” .


2004 Corolla 124831
Out: VML 5w-30 TG4967 OCI 5007 Miles
In: EDGE EP 5W-30 Bosch 3311 122537 7-18-18
2006 Duramax 74277
Out: T6 5W-40 M1-303
In: T6 5W-40 XG9100 74705 4-22-18
Re: Temperature Altitude [Re: bigj_16] #4536109
10/07/17 10:49 AM
10/07/17 10:49 AM
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
bigj_16 Offline OP
bigj_16  Offline OP
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
Well, this is about high altitudes smile

Re: Temperature Altitude [Re: bigj_16] #4536231
10/07/17 01:34 PM
10/07/17 01:34 PM
Joined: Jul 2010
Posts: 18,730
PNW
ZeeOSix Offline
ZeeOSix  Offline
Joined: Jul 2010
Posts: 18,730
PNW
Good paper, but no surprises - less dense air from high altitude causes power loss in NA engines. That's why they were supercharging WWII aircraft engines in the 40s.

Re: Temperature Altitude [Re: bigj_16] #4536302
10/07/17 03:43 PM
10/07/17 03:43 PM
Joined: May 2012
Posts: 953
Rio Rancho, NM
Pajero Offline
Pajero  Offline
Joined: May 2012
Posts: 953
Rio Rancho, NM
Thanks for posting! Trust me, there is a significant power loss at high elevations. I live at 5,600 feet. When I lived at sea level, truck was awesome! At least fuel injectors compensate, people with carbs, well they are adjusting at various elevations. I physically run at various elevations and your lungs feel it. Especially in Santa Fe 7,500 feet or the Sandia Mountains 10,0000 feet. Your body develops a lot of red blood cells to adjust.


Respectfully,

Pajero!


Always remember "Planned obsolescence."

1994 Montero SR 3.5 DOHC, 133,xxx
Fram Ultra/ Snorkel with Pre-filter
K-9-Co-pilot
Re: Temperature Altitude [Re: bigj_16] #4536386
10/07/17 05:41 PM
10/07/17 05:41 PM
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
bigj_16 Offline OP
bigj_16  Offline OP
Joined: Jul 2017
Posts: 1,292
Douglas County, Colorado
What about JP-8 in SI engines?


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