bill price
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i just purchased an RV-4. it has been in the San Diego Aerospace Museum for 15 years and I would like to install the heater fresh air option on it. Does anyone have any guidance on this?
smokyray said:Hi Steve,
[snip] If I had it to do all over again I would engineer my cockpit heat ducting off my oil cooler. [snip]
Rob Ray
Hello all,
up here in the great white north, cabin heat can determine the extent of your off season, eh. Long term I want to mount skiis on my baby and so need to upgrade the cabin heat. In the mean time, I want to stay warm enough, long enough to get to Florida off season.
The original builder scavenged exhaust from the oil cooler and ducted out an open ended cheek cowl. A small flapper would divert the exhaust air into the cabin. Unfortunately, the oil doesn't seem to get hot enough to scavenge warm enough air. The ducting is also the mount for the cooler and so significant modifications will require extensive work.
There is a naca vent in the lower left cowling which scats through the left cheek cowl to another flapper to divert fresh air into the cabin. It would be easy enough to scat from the naca to a heat muff and up to the duct. Theoretically, the easiest and quickest solution for me which isn't working out so easy and quick.
I have an O-320 with Vetterman 4 pipe exhaust. Smokey mentioned a High Country Heater which sounds like just the ticket for me, but I cannot find it online, can anyone help?
If anyone else found a commercially available slap on muff that will fit, pls also let me know. The aircraft spruce ones don't fit. If you made your own and care to share your genius, I will pay due homage.
Thanks
Jim