IowaRV9Dreamer
Well Known Member
I'd like to install 1 (or 2) lightweight fans in the forward top skin to blow unheated air up onto the inside of the windscreen. The intent is to keep air moving for defrost purposes on the ground in a cold cockpit (I fly a lot in winter).... not for deicing purposes. I know others have done similar.
My question regards cutting holes in the skin for the air to blow through. I was thinking of just punching a 2" round hole and mounting the fan underneath, with some sort of finger guard. Position for the pilot side would be as shown, with the firewall on the left side of the pic and the panel on the right side:
Should I be concerned about cutting such a large hole here for structural reasons? Should I add a doubler?
BTW - fan is 60x60x25mm, from "Jamicon" moves 21 cfm, draws 0.23 Amp and weighs < 3 oz! Its seems to move an adequate amount of air and is also pretty quiet (not that fan noise matters).
Datasheet here for interested parties.
http://www.jamicon.com/spec/DC/JF0625-00.pdf
Thanks for any help, and have a Happy Thanksgiving!
My question regards cutting holes in the skin for the air to blow through. I was thinking of just punching a 2" round hole and mounting the fan underneath, with some sort of finger guard. Position for the pilot side would be as shown, with the firewall on the left side of the pic and the panel on the right side:
Should I be concerned about cutting such a large hole here for structural reasons? Should I add a doubler?
BTW - fan is 60x60x25mm, from "Jamicon" moves 21 cfm, draws 0.23 Amp and weighs < 3 oz! Its seems to move an adequate amount of air and is also pretty quiet (not that fan noise matters).
Datasheet here for interested parties.
http://www.jamicon.com/spec/DC/JF0625-00.pdf
Thanks for any help, and have a Happy Thanksgiving!