View Single Post
Old 02-27-2021, 12:03 AM   #33 (permalink)
freebeard
Master EcoModder
 
freebeard's Avatar
 
Join Date: Aug 2012
Location: northwest of normal
Posts: 28,703
Thanks: 8,147
Thanked 8,925 Times in 7,368 Posts
I posted this for aerohead in another thread:

enginehistory.org: Waste Heat Utilization in High Output Aircraft Piston Engines by Robert J. Raymond
Quote:
3b. Added Thrust

A significant increase in thrust can be realized by the simple expedient of pointing the exhaust stacks toward the rear of the aircraft....
A rule of thumb given by Hoerner [3] is that between 0.11 to 0.13 pounds of thrust per horsepower can be expected from properly directed exhaust stacks with the appropriate exhaust exit area.
__________________
.
.
Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster

____________________
.
.
Three conspiracy theorists walk into a bar --You can't say that is a coincidence.
  Reply With Quote
The Following User Says Thank You to freebeard For This Useful Post:
aerohead (03-24-2021)