wietse
Posts: 3630
Joined: Thu Oct 18, 2001 12:49 am

Airshow Smokepod Flame-out?

Mon Jun 28, 2004 6:36 pm

Hey all,

I recently visited Volkel Airforce Base in the Netherlands for an airshow. I have a question about this display:


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Photo © Wietse de Graaf - AirTeamImages



The plane came by in a level flight, smoke pods were turned off. During this level flight I took a shot of it, and there were flames coming out of the smokepods, making it look like the "missiles" were about to be fired.



See what I mean? How is this caused? Is it a residue of the oil that creates a flame?

Thanks in advance,
Wietse
Wietse de Graaf
 
Mr Spaceman
Posts: 2723
Joined: Thu Mar 15, 2001 5:09 am

RE: Airshow Smokepod Flame-out?

Mon Jun 28, 2004 10:02 pm

Hello Wietse.

I don't know the answer  Sad , but I was wondering ......... if these smoke pods can be turned on and off several times during an airshow demonstration, then perhaps those small flames are used to re-ignite the oil/agent that creates the smoke. Just a thought.

Also, that's a really nice photo you took!  Big thumbs up


Chris  Smile
"Just a minute while I re-invent myself"
 
FredT
Posts: 2166
Joined: Thu Feb 07, 2002 9:51 pm

RE: Airshow Smokepod Flame-out?

Mon Jun 28, 2004 10:32 pm

The Smokewinders have ignition systems so no need for a pilot flame. A safe bet is that it is just gasoline still burning as they are turned off.

They operate by taking in ram air into a combustion chamber where an oil pump and a gasoline pump provides gasoline for combustion and oil for smoke generation. When the oil pump pressure drops, they turn themselves off but only after a brief delay. The picture is probably taken during this dealy, when the Smokewinders are burning only gasoline.

For more info: http://www.sandersaircraft.com/

Cheers,
Fred
I thought I was doing good trying to avoid those airport hotels... and look at me now.
 
Mr Spaceman
Posts: 2723
Joined: Thu Mar 15, 2001 5:09 am

RE: Airshow Smokepod Flame-out?

Mon Jun 28, 2004 10:46 pm

Hello FredT.

Thanks for your info. As always, your knowledge of military aircraft (among other things) is very impressive.

Here's your link. The website looks great.

http://www.sandersaircraft.com/


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Photo © Phil Cooke




Chris  Smile
"Just a minute while I re-invent myself"
 
ArmitageShanks
Posts: 3754
Joined: Tue Dec 30, 2003 5:30 am

RE: Airshow Smokepod Flame-out?

Tue Jun 29, 2004 12:57 am

Don't a lot of smoke systems use some sort of wax to get the smoke?
 
Vorticity
Posts: 324
Joined: Thu May 20, 2004 9:09 am

RE: Airshow Smokepod Flame-out?

Tue Jun 29, 2004 1:32 am

The blue angels just have a little tube that extends over the back of the exaust that releases an oil.
Thermodynamics and english units don't mix...
 
PPGMD
Posts: 2398
Joined: Sun Sep 30, 2001 5:39 am

RE: Airshow Smokepod Flame-out?

Tue Jun 29, 2004 4:26 am

The main smoke oil I see used around the aerobatic community is Corvus Oil, now released under the Texaco brand called Canopus 13.

At worst, you screw up and die.
 
FredT
Posts: 2166
Joined: Thu Feb 07, 2002 9:51 pm

RE: Airshow Smokepod Flame-out?

Tue Jun 29, 2004 6:08 am

Canopus 13 is the recommended oil for the Smokewinder as well.

Regards,
Fred
I thought I was doing good trying to avoid those airport hotels... and look at me now.
 
wietse
Posts: 3630
Joined: Thu Oct 18, 2001 12:49 am

RE: Airshow Smokepod Flame-out?

Thu Jul 01, 2004 9:05 pm

Thanks for the answers everyone!

Wietse
Wietse de Graaf

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