Warbird Information Exchange

We are thinking about putting Air wolf Oil filters on our AC-47. I would like to hear from anyone who uses them on there plane and what they think of them. Thanks, Spookyboss

We have their systems on a Beaver and a 185, and as far as I know, they do a good job. It's easy to change the filters, more so than with the hi-tech one I have on the Focke-Wulf.

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Olivier Lacombe -- Harvard Mk.4 C-GBQB

Another alternative is the ADC filter with the chip detector. The micron screen type is cleaned and reused. I hear that this type can even be set up with several for the larger engines....
http://www.aviationdevelopment.com/cgi-local/SoftCart.100.exe/online-store/scstore/shophome.html?E+scstore

Ollie, what type have you got on the Focke-Wulf?

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Civis Aerius Sum

I am a citizen of the Air

ADC filter.

It does a good job at filtering, I mean, it's very good, but when you split i appart, you leak oil all over the bottom cowlings, as it's mounted on the firewall.

I'll try o dig up a picture of it somewhere.

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Olivier Lacombe -- Harvard Mk.4 C-GBQB

Here's the ADC filter installation on the Fw.



Next time I'm at the airport, I'll take a better shot of it and I'll also get a shot of the Air Wolf filter on the Beaver.

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Olivier Lacombe -- Harvard Mk.4 C-GBQB

That engine block doesn't look so good.

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www.tailhookstudio.com

Yes, it's a bucket of rust.

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Olivier Lacombe -- Harvard Mk.4 C-GBQB

Ok, I ran by the airport today and got pictures of the filters.

First, the Air Wolf job on one of our Beavers.





ADC Filter on the Focke-Wulf.

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Olivier Lacombe -- Harvard Mk.4 C-GBQB

Everyone should be using oil filters. The master rod bearing in a radial engine traps and hold the metal wear particles. A filter is a much more elegant and cheaper solution.

There are several other things an oil filter can do. The ADC filters and the Hinz filters that Gerry Beck at Tri-state makes have chip detectors and bypass lights. I am not a big fan of chip detectors because they cry "wolf" alot, but I am a huge fan of bypass lights.

A by-pass light saved the Super-Corsair from an off airport landing when it's engine failed a couple years ago, and a by-pass light would have probably saved the Red Tail P-51 and Don Hinz. Gerry Beck built a filter setup specifically for the P-51 that has a scupper to trap the oil when you clean it out. He named it the Hinz filter.

Tailwinds,
Doug Rozendaal

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Tailwinds,
Doug Rozendaal

The chip light in the ADC doesn't come up that much in the Focke-Wulf, probably because we don't do 50 hours a year with it. When the engine was new, it did come up a few times, but it was mainly residues from the overhaul. Nowadays, the screen is always pretty clean.

I just learned we are installing a filter in the Harvard this spring...

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Olivier Lacombe -- Harvard Mk.4 C-GBQB

Which one?

Air Wolf, same as in the Beaver.

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Olivier Lacombe -- Harvard Mk.4 C-GBQB