Excellent! Thanks.
Do you think ejecting waste heat in the duct exit will increase thrust?

Or

maybe it's just a good way of using the available surface area and

lowering

cooling drag.

Perry

I doubt it. One must compress the air first and then add heat. The thrust

effect on

the P51 Mustang was marginal at 400 MPH.

Perhaps on the cooling drag because you would be doing away with the water

rad.

Paul Lamar

There is a product called "roll-bond" that was developed for freezers (and
solar collectors) that is made by printing a flow pattern on thick aluminum
sheet, covering it with another, and then rolling the sandwich between
massive rollers to make an aluminum sheet ~1/16" thick. The aluminum bonds
everywhere except where the pattern was placed, and they then inflate the
passages with compressed air or hydraulic fluid.

If this were used and bent in a circle, you would have a good heat transfer
surface.

Bill Schertz
KIS Cruiser # 4045

 
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