This works. I was also successful in opening the leading side of the front hatch (sorta ram air induction) in my travels on the Cassiar, Top-Of-The-World and Taylor highways in Alaska and Canada. I chose the front hatch because it seems to me that it's usually in the cleanest air
available. After several hundred miles on such highways the difference in the amount of dirt on the inside of your AS is quite significant--and appreciated.

Clark
WA7GGV
27' '70

One way to try and keep dust down and out of the interior of ones trailer is that when travelling, crack open the rear half of the rearmost vent cover while towing. By doing this the interior of the trailer has a positive pressure and will "force out" small minute openings because of the positive pressure. When a trailer is all closed up, it typically will actually pull a slight vacuum which means that dust and dirt particles are pulled into the
trailers through minute openings.

For most travelling this scenario is not apparent but when one travels a very dusty road then it becomes quite obvious. This is particularly true in the vintage units which have many more minute openings than newer ones.

Just a thought........

Tom H.
WBCCI # 6490
'53 Airstream Flying Cloud