mobilepolice
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- Jun 16, 2013
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I'm curious if anyone else has tried this.
I have a 96 F350 7.3L turbodiesel truck with a 4" exhaust. I procured 20ft of "Dryer" hose and attached it to the exhaust on the truck with the truck set at high idle. The other end went under the bottom of the cowling of the airplane.
In about 10 minutes the CHT's went from 30F to 45F and I'm sure with more patience I could get things up around 60F.
The exhaust air from the truck is decently warm (100-110F or so?) at the outlet from the dryer hose and I didn't bother with any blankets, cowling plugs, etc.
I'm wondering if there's any sort of regulation against this method of preheat, or if there's a list of the only approved methods?
Unfortunately I don't have any electrics at the hangar, and the only options I've seen for pre-heat via 12V are typically in the $300-600 range. This "solution" cost me about $20 in dryer hose, and I'm running the truck anyway.
The exhaust air isn't the cleanest, but I'm not breathing it or sitting in the plane waiting; and inside the cowling isn't the cleanest either. I didn't bother with blankets or trying to plug any holes in the cowling, I just let the exhaust air drift out the cowling inlets.
I have a 96 F350 7.3L turbodiesel truck with a 4" exhaust. I procured 20ft of "Dryer" hose and attached it to the exhaust on the truck with the truck set at high idle. The other end went under the bottom of the cowling of the airplane.
In about 10 minutes the CHT's went from 30F to 45F and I'm sure with more patience I could get things up around 60F.
The exhaust air from the truck is decently warm (100-110F or so?) at the outlet from the dryer hose and I didn't bother with any blankets, cowling plugs, etc.
I'm wondering if there's any sort of regulation against this method of preheat, or if there's a list of the only approved methods?
Unfortunately I don't have any electrics at the hangar, and the only options I've seen for pre-heat via 12V are typically in the $300-600 range. This "solution" cost me about $20 in dryer hose, and I'm running the truck anyway.
The exhaust air isn't the cleanest, but I'm not breathing it or sitting in the plane waiting; and inside the cowling isn't the cleanest either. I didn't bother with blankets or trying to plug any holes in the cowling, I just let the exhaust air drift out the cowling inlets.
