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04-18-2016, 09:47 AM
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#1
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3 Rivet Member
Commercial Member
1967 28' Ambassador
1964 19' Globetrotter
1960 24' Tradewind
Edgewood
, Kentucky
Join Date: May 2015
Posts: 209
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Can a polished trailer cause a fire???
Today I was working on my trailer, windows open in the bright and sunny 70 degree weather when all of the sudden I heard my air line pop followed by a hiss. Upon investigation I had found that the buffed aluminum exterior reflected the sun through a concave curved shaped window and focused perfectly on the ground where my hose was laying.... My first thought was, I wonder if this has ever caught any leaves on fire when camping? I would assume if it could melt a hole in a air line then it possibly could... Has anyone else experienced this? I know my buffing skills were above-par, but I never saw this happening. I'm afraid to keep my trailer gleaming in the sun now with the windows open... Is that smoke I smell????
__________________
Artisan Airstreams
Custom restorations and renovations
www.artisanairstreams.com
Keeping the Art on the road, one project at a time
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04-18-2016, 10:16 AM
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#2
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Rivet Master
2019 27' International
2014 25' International
2006 23' Safari SE
Boulder City
, Nevada
Join Date: Aug 2007
Posts: 5,703
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Come On Baby... Light my Fire.
"Come on Baby, light my Fire"....
Camped at Lake Meade, Nevada with 120F sunny days air temperature and no doubt much higher temperature on the aluminum skin... no fires. Like 'non kink water hoses'... they kink.
I have never had a water hose issue, laying on the black asphalt in the sun. Much like the water hoses in your vehicle, poor quality of the hose. Not uncommon in automobiles in the 1960's and 1970's.
Although today the reflective mirrors concentrated to generate steam to generate electricity in the deserts is a growing industry... maybe you have found a short cut.
You may be the one creating the grass fires in California... a new cause... Airstream Spontaneous Combustion.
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Human Bean
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04-18-2016, 10:52 AM
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#3
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Rivet Master
2014 20' Flying Cloud
Sag Harbor
, New York
Join Date: Jun 2015
Posts: 17,523
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Defective air hose IMO, no burn marks on hose.
Maybe try to recreate the geometry and leave a thermometer in the so-called melt spot? Bet it reads below the specs. of the hose.
Also, how does the reflected exterior sunlight go through a fixed glass curved window, first of all, and then get back outside to melt the hose? The geometry seems impossible IMO unless I am misreading things.
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04-18-2016, 11:59 AM
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#4
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3 Rivet Member
Commercial Member
1967 28' Ambassador
1964 19' Globetrotter
1960 24' Tradewind
Edgewood
, Kentucky
Join Date: May 2015
Posts: 209
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Im puzzled by it also, my windows were open so it did not enter into the trailer. The sun came down, hit the side of the airstream, and then it reflected through the open window onto the ground...
__________________
Artisan Airstreams
Custom restorations and renovations
www.artisanairstreams.com
Keeping the Art on the road, one project at a time
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04-18-2016, 12:43 PM
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#5
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Rivet Master
2016 23' International
Centennial
, Colorado
Join Date: May 2006
Posts: 1,684
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It doesn't look like there were any burn marks which would be there if the damage came from the sun. Probably a weak hose that gave out.
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Steve "Centennial Man"
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04-18-2016, 01:12 PM
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#6
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3 Rivet Member
Commercial Member
1967 28' Ambassador
1964 19' Globetrotter
1960 24' Tradewind
Edgewood
, Kentucky
Join Date: May 2015
Posts: 209
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It didn't burn because it was not hot enough yet... the 90 pounds of pressure my air regulator was set on most likely ruptured the hose softened by the sun. Defective hose? only when you expose them to high heat? I'm positive this would not have happened on a cloudy day. I knew and thought it was funny that I'd find skeptical critics out there, believe it or not I don't care. But dismissing it for a defective hose seems like a hasty answer. Have you ever seen a fire started with the bottom of a soda can? The focal point of the picture was HOT. Scientifically I do not know how hot. But I didn't want to stick my hand in it for very long, I know that. Tomorrow should mimic the same weather that caused this to happen. If I remember I will take a thermometer reading.
__________________
Artisan Airstreams
Custom restorations and renovations
www.artisanairstreams.com
Keeping the Art on the road, one project at a time
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04-18-2016, 02:06 PM
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#7
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Rivet Master
2014 20' Flying Cloud
Sag Harbor
, New York
Join Date: Jun 2015
Posts: 17,523
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Sounds like you have already figured out the cause . . . without all the evidence -- in my personal opinion.
Confirmation Bias
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04-18-2016, 03:39 PM
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#8
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Rivet Master
1978 31' Sovereign
Texas Airstream Harbor
, Zavalla, in the Deep East Texas Piney Woods on Lake Sam Rayburn
Join Date: Jan 2003
Posts: 2,435
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Fire....for sure
When I initially did the '78 it had a pretty good polish on it.
Picture is of a burn line on a car mat that was drying adjacent to the trailer. The burn was caused by focused solar rays as the sun carried it's arc across the sky.
__________________
Dennis
"Suck it up, spend the bucks, do it right the first time."
WBCCI # 1113
AirForums #1737
Trailer '78 31' Sovereign
Living Large at an Airstream Park on the Largest Lake Totally Contained in Texas
Texas Airstream Harbor, Inc.
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04-18-2016, 04:58 PM
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#9
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Rivet Master
2016 23' International
Centennial
, Colorado
Join Date: May 2006
Posts: 1,684
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Good idea on the thermometer reading tomorrow. I wonder if this subject has been posted on the Forum before or not. Scary to think that shiny Airstreams could cause a fire...I will be interested to see the outcome.
__________________
Steve "Centennial Man"
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04-18-2016, 05:27 PM
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#10
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Rivet Master
1948 16' Wee Wind
1953 21' Flying Cloud
Denver
, Colorado
Join Date: Jul 2003
Posts: 1,169
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Artisan Air:
You are on the right track. Friends of mine have melted jaggy lines across the plastic "grass blades" on their artificial turf mats during bright sunny days here in Colorado. The sun reflected from, and was focused by, the open polished interior of their curved aluminum "door-within-a-door" on 1964 and earlier Airstreams. I haven't yet seen anything ignite, but the focused sun rays certainly were hot enough to melt plastic into one long linear valley on the mat. Polish that door interior enough and you won't need a separate sun oven.
__________________
Fred Coldwell, WBCCI #1510, AIR #2675
Denver, Colorado - WBCCI Unit 24
Airstream Life "Old Aluminum"
Airstream Life "From the Archives"
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04-18-2016, 06:44 PM
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#11
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Rivet Master
1981 31' Excella II
New Market
, Alabama
Join Date: Sep 2011
Posts: 6,145
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Yes they can set stuff on fire but they can also blind drivers behind you. I was following one of those big buss motor homes the other day and there was a chromed flap under the rear end and the sun would reflect off that thing and blind you. Imagine something like the large flat rear section of an Airstream.
Perry
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04-18-2016, 08:32 PM
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#12
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Rivet Master
1960 28' Ambassador
Vintage Kin Owner
1998 25' Safari
Avonton
, Ontario
Join Date: Sep 2005
Posts: 1,331
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I set my wet sock in the reflection from my door on my 60 and burnt it up. Smoke and fire!!
__________________
Doug & Terry
VAC - TAC ON-1
60 Ambassador Int.
1950 Spartan
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04-18-2016, 09:35 PM
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#13
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Rivet Master
1972 31' Sovereign
1975 31' Excella 500
Currently Looking...
Benton
, Arkansas
Join Date: Mar 2013
Posts: 5,868
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You can bet your a$$ that a reflection off of a polished trailer can start a fire.
But for my trailer, my bathroom window that is coated with a highly reflective silver tint is the hottest.
When I got the trailer the window glass had been changed to plexiglass, I never felt the need to change it, but the plexiglass domes inward just enough to make a very effective and quite large concave mirror.....
I noticed its affect where I had tarped a large box to the rear of my trailer. It melted it real good.
Superat stultitia.
__________________
The fact that I am opinionated does not presuppose that I am wrong......
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04-19-2016, 02:42 AM
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#14
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Rivet Master
2005 19' Safari
GLENDALE
, AZ
Join Date: Aug 2004
Posts: 2,453
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Our Bambi is not polished. However, a few years ago, summer-sunlight reflected off of a side panel shone on a pair of flip-flops and melted them.
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04-19-2016, 03:26 AM
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#15
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Rivet Master
1977 31' Sovereign
1963 26' Overlander
1989 34' Excella
Johnsburg
, Illinois
Join Date: Jul 2005
Posts: 2,944
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I have seen a number of early 60's Door within a Door mirror polished concave doors melt the polypropylene exterior mats, if you park with southern exposure. PP melts at about 350F. Following too close to a highly polished Airstream can be dangerous and painful.
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04-19-2016, 06:21 AM
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#16
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in the rising sun toaster
1956 26' Cruiser/Overlander
Wimberley
, Texas
Join Date: Apr 2015
Posts: 52
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Reflecting on reflections: the first time we roadtripped after (the first and only time) I mirror-polished my entire '56 AS, I resolved *not* to ever do that again. Nice as it looked when parked, I concluded that I had unintentionally created an actual road hazard. Since then, I still do lightly polish some panels, but never mirror polish any panels any more. Sunlight, especially when low at mornings & evenings, reflected so BRILLIANTLY into my eyes via my TV mirrors that I had to adjust my mirrors into useless positions; I started avoiding driving during those low-sun times of day because of this issue. Angles between the sun and my 'mirror-of-death' Toaster meant that any given panel was capable of blasting sunlight somewhere, certainly bad for other drivers ahead and behind, me too, and annoying, at least, to those to the sides. Not sure why my mirror-polished '56 Airstream is more annoyingly reflective than, say, a polished stainless steel milk tank-trailer. Perhaps a mirror-polished older AS becomes more "mirror-y" than a polished SS milk trailer? Perhaps my AS's angles were 'aimed' more effectively to blast nearby eyes? Anyway, I let the normal road-trip dirt remain on my AS on purpose that trip and, after a couple months, found that my mirror-polish had quickly degraded from "blast-you-blind" to just very shiny, so issue went away soon enough. YMMV. p.s. Yes! Concave curved reflective metal can definitely focus sunlight to heat, even burn; I recall as a boy scout being taught how to cook with a just such a curved sheet of shiny metal --> HOT!
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04-19-2016, 11:03 AM
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#17
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Tom T
Vintage Kin Owner
Vintage Kin Owner
Orange
, California
Join Date: Nov 2014
Posts: 1,023
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The simple answer to the OP's question is, to quote a famous old movie line: "Yes Virginia, & more!"
I have vintage trailer friends who have burned their patio mats, igloo coolers & other items from the concentrated reflection off the polished trailers - & one guy melted the plastic side mirror housing on his car while parked next to the trailer!
That's part of the reason why I've not polished the skin on our 1960 Avion T20 yet, until I have a permanent parking spot with cover worked out. And the PO had it polished initially in his resto, but not by the time we purchased it in 2012 for similar concerns & time to keep it up.
So, Go Shiny with Caution!
Tom
///////
__________________
Tom T
Orange CA
1960 Avion T20, #2 made, Hensley Cub, TV tbd- looking for 08-22 Cayenne S, EH, etc
1988 VW Vanagon Westfalia CamperGL (Orig Owner) + 1970 Eriba Puck
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04-19-2016, 11:38 AM
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#18
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Rivet Master
2013 30' Classic
Greenwood
, Mississippi
Join Date: Oct 2012
Posts: 12,111
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Even a non polished Airstream can blind other drivers.
__________________
2013 Classic 30 Limited
2007 Silver Toyota Tundra Crew Max Limited 5.7 iForce
2006 Vivid Black Harley-Davidson Road King Classic
1999 Black Nissan Pathfinder LE
TAC #MS-10
WBCCI #1811, Region 6, Unit 56
Airforums #70955
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04-19-2016, 11:43 AM
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#19
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2 Rivet Member
2004 19' Bambi
Cincinnati
, Ohio
Join Date: Oct 2015
Posts: 21
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If you have plastic siding on your house, beware of bright reflections on it.
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