Winter hanger idea for polished plane- fans

[BruceW]

My mostly polished -7 sits in a cool, damp hanger during the winter in Sacramento CA. (think days of tule fog)
(yes, not as cold and damp as some places, but still . . .)
Most of the seasonal corrosion happens during this time. (Hot and dry in the summer.)
Not serious corrosion but visible spots that take more work to polish out in the Spring.
Covering with sheets has occasionally made it worse, presumably from holding the moisture in.

So here is the idea, put some fans in the hanger to move the air around during the cool, damp winter.
Anyone tried this and succeed in reducing Winter corrosion?
Any ideas where and how to place the fans?
Waste of time?
Thanks.

 

[Majorpayne317641]

When I kept an RV in a soft sided fully enclosed structure in Florida I had an industrial style fan tied to a humidity sensor. It was set to run at anything above 80% humidity, it did help keep condensation out of the tent by circulating air inside with the air outside.

 

[riseric]

Can't say about moving the air around, could help preventing mold and mildew ??
I keep the hangar at ~ 4 to 5° C wintertime, (Quebec city).
There are a couple of ceiling fans turning moderatly to move the warm air around.
Granted, our very cold winter air is often very low in moisture content, but during warmer spells and rainy/snowy days the dampness goes up.
Wintertime, I use a dehumidifier set to 35% to keep the inside resonnably dry.
Summertime, it's set at 50%, otherwise it would run continuously.
Might be worth a try to use 1 or 2, if your hangar is reasonnably closed to outside weather ??

 

[Carl Froehlich]

Is the hangar enclosed enough so you could run a couple of dehumidifiers?

Carl

 

[Majorpayne317641]

Is the hangar enclosed enough so you could run a couple of dehumidifiers?

Carl

Even if he could if it starts getting cold enough the defrost cycle would run more than the actual dehumidifying on the machine.

 

[BruceW]

Is the hangar enclosed enough so you could run a couple of dehumidifiers?

Carl

Carl. Hanger is a standard corrugated metal end-row T-hanger with gaps at the roof-wall line, both exterior and interior walls.
So some outside/inside air movement occurs. Doesnt get that cold in Sacramento, but the tule fog sets in for days at a time with high humidity in the 40 degree range.

Only dehumidifier I have is a small one under a sheet to protect the ammo loading machine in the corner. (Shhh, dont tell the airport manager.)

 

[Mikeyb]

The data for corrosion rate vs RH shows this knee at 60-70% RH. If you keep it below that you have solved the problem for all practical purposes

 

[Karmarepair]

Some of the Car People at my private airport (San Rafeal; damp, foggy and poorly drained in the winter) put their babies in big zip lock bags with Dessicant.

I haven't seen "consumer grade" ones big enough for an airplane - contractors working for Uncle Sam will build you one of any size or shape you want at frightful expense.

You could do something similar by buying two giant Harbor Freight tarps, roll the plane onto one, put a big (5 lb) bag of dessicant in the middle under the gear, and drape the second tarp over that. You could "seal" the edges with sandbags.