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View Full Version : F-35 aircraft + Vertical takeoff = Surface Heat


flogger
07-23-2014, 18:47
I guess we are finding out they are not VTOL "everywhere".
For every action,....

http://www.strategypage.com/dls/articles/Britain-Confronts-The-F-35B-Heat-Demon-7-23-2014.asp

(still an amazing plane!)
Gman
07-23-2014, 19:02
Amazingly expensive and a mess. Would not shock me if this project gets the axe.
Ridge
07-23-2014, 19:13
Why not just land it conventionally if it's already at a regular airstrip? Hell, even STOL it.
Drucker
07-23-2014, 19:27
I remember Harriers melting a few spots on the line when they were newish
clublights
07-23-2014, 19:35
The harrier did better as the nozzles were not far apart and the forward pair are cool " by pass" air the rear were hot combustion gasses... so the cool and hot air mixed very close to the airplane and keep the problem low...

the f-35's front cool air fan is like 20 feet away from the hot combustion gases tail pipe .
Ridge
07-23-2014, 19:38
The V-22 has the same problem

http://www.theregister.co.uk/2009/11/17/darpa_chilled_landing_pads_for_osprey_f_35b/
Gman
07-24-2014, 05:35
The V-22 has the same problem

http://www.theregister.co.uk/2009/11/17/darpa_chilled_landing_pads_for_osprey_f_35b/
The original linked article discussed the MV-22 (Marine variant of the V-22).
Circuits
07-24-2014, 11:10
Why not just land it conventionally if it's already at a regular airstrip? Hell, even STOL it.

Because they need to train pilots in VTOL to operate from their baby flat-tops.
TFOGGER
07-24-2014, 11:36
It seems like this would be a good application for the ceramics that they used for the Space Shuttle tiles. If that material can protect the aluminum/carbon fiber skin of the shuttles against the 4000 degree heat of re-entry, it should be able to protect the concrete against 1800 degrees or so...
Justin
07-24-2014, 11:46
Those ceramics are stupendously expensive and physically fragile, I doubt they'd be able to withstand the force of an F35 sitting on them, or slamming down on them during landings.
ChunkyMonkey
07-24-2014, 14:28
I guess we are finding out they are not VTOL "everywhere".
For every action,....

http://www.strategypage.com/dls/articles/Britain-Confronts-The-F-35B-Heat-Demon-7-23-2014.asp

(still an amazing plane!)

Take all of startegypage article with a grain of salt. Their article can be real biased at times and got taken apart by many many other industry and military insiders.

The issue was addressed in 2012-2013 btw. The brits are just pissy about their over budgeted HMS Queen Elizabeth.
http://aviationweek.com/awin/us-navy-details-ship-mods-required-f-35
flogger
07-25-2014, 18:19
Take all of startegypage article with a grain of salt. Their article can be real biased at times and got taken apart by many many other industry and military insiders.

The issue was addressed in 2012-2013 btw. The brits are just pissy about their over budgeted HMS Queen Elizabeth.
http://aviationweek.com/awin/us-navy-details-ship-mods-required-f-35

Agreed, but shouldn't this 'oversight' have been addressed about 10 years ago? I'm guessing at least one F-35 engineer had a clue about the surface damage to asphalt/concrete/synthetic platforms used for VTOL.
It kind of reminds me of France's new supertrains that are too wide to fit in all the stations and depots. These people have degrees?