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Airshow Smokepod Flame-out?  
User currently offlineWietse From Netherlands, joined Oct 2001, 3809 posts, RR: 55
Posted (10 years 1 month 4 weeks 1 hour ago) and read 1747 times:

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
8 replies: All unread, jump to last
 
User currently offlineMr Spaceman From Canada, joined Mar 2001, 2787 posts, RR: 9
Reply 1, posted (10 years 1 month 3 weeks 6 days 22 hours ago) and read 1670 times:

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"
User currently offlineFredT From United Kingdom, joined Feb 2002, 2185 posts, RR: 26
Reply 2, posted (10 years 1 month 3 weeks 6 days 21 hours ago) and read 1660 times:

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.
User currently offlineMr Spaceman From Canada, joined Mar 2001, 2787 posts, RR: 9
Reply 3, posted (10 years 1 month 3 weeks 6 days 21 hours ago) and read 1654 times:

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 © Den Pascoe
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Photo © Philip Preindl



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Photo © Phil Cooke




Chris  Smile



"Just a minute while I re-invent myself"
User currently offlineArmitageShanks From UK - England, joined Dec 2003, 3619 posts, RR: 15
Reply 4, posted (10 years 1 month 3 weeks 6 days 19 hours ago) and read 1624 times:

Don't a lot of smoke systems use some sort of wax to get the smoke?

User currently offlineVorticity From United States of America, joined May 2004, 337 posts, RR: 5
Reply 5, posted (10 years 1 month 3 weeks 6 days 18 hours ago) and read 1611 times:

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...
User currently offlinePPGMD From United States of America, joined Sep 2001, 2453 posts, RR: 0
Reply 6, posted (10 years 1 month 3 weeks 6 days 16 hours ago) and read 1572 times:

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.
User currently offlineFredT From United Kingdom, joined Feb 2002, 2185 posts, RR: 26
Reply 7, posted (10 years 1 month 3 weeks 6 days 14 hours ago) and read 1551 times:

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.
User currently offlineWietse From Netherlands, joined Oct 2001, 3809 posts, RR: 55
Reply 8, posted (10 years 1 month 3 weeks 3 days 23 hours ago) and read 1450 times:

Thanks for the answers everyone!

Wietse



Wietse de Graaf
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