Msh744
Topic Author
Posts: 423
Joined: Fri May 31, 2002 10:09 am

Question About Vapor Seen Trailing From C172

Thu Jan 09, 2003 8:13 am

At about 6PM today, I saw an overflying C172/C152 (not sure which) trailing a stream of vapor about (i'm guessing here) 3 feet wide. I was beginning to think that it may be fuel, but I am not sure if cessnas can dump fuel. If anyone could assist me with any furhter info regarding this sighting, that would be great. Thanks in advance! Smile

-Msh744
 
Beefmoney
Posts: 1065
Joined: Tue Oct 10, 2000 2:16 am

RE: Question About Vapor Seen Trailing From C172

Thu Jan 09, 2003 8:22 am

I also saw a Cessna 172 trailing a "vapor"a few months ago. I think the most likely thing is that the fuel cap came off and the air flowing over the fuel tank opening siphons the fuel out and into the air.
 
mika
Posts: 2810
Joined: Thu Jul 27, 2000 7:53 am

RE: Question About Vapor Seen Trailing From C172

Thu Jan 09, 2003 8:27 am

Or maybe it was a steam powered cessna, who knows  Smile  Nuts
 
Msh744
Topic Author
Posts: 423
Joined: Fri May 31, 2002 10:09 am

RE: Question About Vapor Seen Trailing From C172

Thu Jan 09, 2003 8:27 am

That clears things up a lot. Thanks!

-Msh744
 
Dufo
Posts: 796
Joined: Tue May 18, 1999 2:41 am

RE: Question About Vapor Seen Trailing From C172

Thu Jan 09, 2003 8:32 am

Well they actually CAN dump fuel - in case you forget to close the over-wing fuel ports - overwing low pressure can suck out 26 gallons of fuel in a couple of minutes!

What you saw was probably excess fuel dripping out of the fuel tank vent (that happens when the tanks are 100% full and the spray-effect can be quite spectacular when at full engine RPM). I witnessed one situation when the tower called a departing cessna to check their fuel ports as they were obviously 'leaking' fuel... but it turned out it was just the excess fuel dripping out.

Regards,
Jernej
I seriously think I just creamed my pants without any influence from any outside variables.
 
avroarrow
Posts: 804
Joined: Wed Sep 19, 2001 10:40 am

RE: Question About Vapor Seen Trailing From C172

Thu Jan 09, 2003 8:47 am

You have to watch those overflow tubes when doing you walkaround too...it sucks to reek of 100LL after getting dripped on. Not that this ever happened to me of course.  Smile/happy/getting dizzy
Give me a mile of road and I can take you a mile. Give me a mile of runway and I can show you the world.
 
Dufo
Posts: 796
Joined: Tue May 18, 1999 2:41 am

RE: Question About Vapor Seen Trailing From C172

Thu Jan 09, 2003 8:52 am

Yeah, those tubes are really nasty for the hairstyle haha!

BTW AvroArrow, awesome nick  Smile

Jernej
I seriously think I just creamed my pants without any influence from any outside variables.
 
Msh744
Topic Author
Posts: 423
Joined: Fri May 31, 2002 10:09 am

RE: Question About Vapor Seen Trailing From C172

Thu Jan 09, 2003 9:00 am

Thanks for all of the info everyone!

-Msh744
 
avt007
Posts: 1989
Joined: Mon Jul 10, 2000 4:51 am

RE: Question About Vapor Seen Trailing From C172

Thu Jan 09, 2003 12:07 pm

Oh come on, I'm disappointed! Haven't any of you read about chemtrails? Good heavens, I mean, it's a threat to us all! Obviously you are all part of the vast conspiracy that's keeping it all quiet Laugh out loud Man, I gotta stop this. This chemtrail stuff is making my sides hurt from all the laughing.............