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Superbug Exhaust cans


PhilB
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Just a quickie which I'm hoping won't develop into the great Mustang "flaps" debate.

Superbugs parked on the deck.

Cans open/closed or no real rule either way?

Looking for guidance before I throw some hard-earned at Hannants for the Aires zorst sets.

 

Tanks in anticipation.

 

:)

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Like the legacy Hornet, they seem to be closed (or almost closed) when parked and powered off.

 

Have you checked photos on the web? There are a ton of shots of parked Hornets at navy.mil, airliners.net, various walkarounds, etc.

Edited by Dave Williams
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Here's what I believe but may not be completely accurate for the F-18.

 

The Nozzles are controled using fuel as the "hydraulic" fluid. This is controlled by the EEC (Electronic Engine Control). When the engine is placed into cutoff the fuel control closes and fuel flow to the engine is terminated as the engine spools down the EEC seeing the loss of fuel flow places the nozzle into the failed mode which is closed. The nozzle position in the Max non A/B power setting is closed. As the fuel pressure drops the nozzle may not be fully closed. I know this to be true on a number of engines but not for certain on the F-18.

 

I'm sure there is an F-18 "throttle jockey" or "wrench bender" here who knows the "whole" story.

 

Barry

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Just a quickie which I'm hoping won't develop into the great Mustang "flaps" debate.

Superbugs parked on the deck.

Cans open/closed or no real rule either way?

Looking for guidance before I throw some hard-earned at Hannants for the Aires zorst sets.

 

Tanks in anticipation.

 

:)

Always closed. The only time they would ever be open is for maintenance, or something has gone wrong.

100%.

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Thanks for the great replies gentlemen.

I've ordered a couple of sets of the Aires closed burners from Hannants as a result.

Barry, thanks for the info and WHY they are closed. Great info as usual.

Neo, those cans look great but the cost to the UK would be pretty steep.

 

Phil :goodjob:

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