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#4785174 - 06/12/18 07:01 PM Frantz Aircraft Filter
jacobs Offline


Registered: 11/15/09
Posts: 40
Loc: Kansas
I recently found my original Frantz Aero aircraft filter and thought I'd post pictures of it here for those who never knew it was approved by the FAA for aircraft use.


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#4785192 - 06/12/18 07:18 PM Re: Frantz Aircraft Filter [Re: jacobs]
BrocLuno Offline


Registered: 09/06/15
Posts: 5514
Loc: Kalifornia Kollective
Cool smile
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Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

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#4785193 - 06/12/18 07:18 PM Re: Frantz Aircraft Filter [Re: jacobs]
maxdustington Online   content


Registered: 01/21/17
Posts: 636
Loc: Toronna
From the days when even label was proudly made in the USA. Awesome!

Needs to be installed on a old school hot rod.
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03 Jetta AWP/09A 200k kms
TGMO 0W20 "Legend" & Hella Magnet Filter

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#4785200 - 06/12/18 07:26 PM Re: Frantz Aircraft Filter [Re: jacobs]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Aircraft oil is thick stuff and never seems to get very hot.

Might be useful on lonnnnng cross-country flights?
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4785215 - 06/12/18 07:48 PM Re: Frantz Aircraft Filter [Re: Linctex]
Cujet Offline


Registered: 02/15/03
Posts: 7150
Loc: Jupiter, Florida
Originally Posted By: Linctex
Aircraft oil is thick stuff and never seems to get very hot.

Might be useful on lonnnnng cross-country flights?


Very cool oil filter. I'd love to have something like that as a sub micron bypass filter on my plane.

Just flew a short trip in my Cessna 177RG, about 50 miles or 18 minutes. Since the flight was so short, I spent little time climbing and only went to 3000 feet. Even so, oil temp hit 220F (redline is 245F) and oil pressure hovered around 70PSI. I use 15W-50 semi synthetic Aeroshell, which I believe is 50% PAO. It's not particularly thick or viscous here in South Florida. I'll bet a bypass filter would keep the oil considerably cleaner. The champion CH48103-1 spin on filter I use (I don't know the filtration spec) (resin-impregnated cellulose) does not seem to be anything other than a 40-50 micron filter.
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#4785315 - 06/12/18 09:59 PM Re: Frantz Aircraft Filter [Re: Cujet]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: Cujet
The champion CH48103-1 spin on filter I use (I don't know the filtration spec) (resin-impregnated cellulose) does not seem to be anything other than a 40-50 micron filter.


Look at the oil screens That Cont/Lyc recips used to use decades ago!!! grin grin

50 microns would be a HUGE improvement
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4785409 - 06/13/18 12:18 AM Re: Frantz Aircraft Filter [Re: maxdustington]
oldhp Offline


Registered: 06/28/12
Posts: 1622
Loc: USA
Originally Posted By: maxdustington
From the days when even label was proudly made in the USA. Awesome!

Needs to be installed on a old school hot rod.


Absolutely on a old hot rod. Made proudly in the USA.
_________________________


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#4785475 - 06/13/18 05:31 AM Re: Frantz Aircraft Filter [Re: Linctex]
jacobs Offline


Registered: 11/15/09
Posts: 40
Loc: Kansas
Originally Posted By: Linctex
Originally Posted By: Cujet
The champion CH48103-1 spin on filter I use (I don't know the filtration spec) (resin-impregnated cellulose) does not seem to be anything other than a 40-50 micron filter.


Look at the oil screens That Cont/Lyc recips used to use decades ago!!! grin grin

50 microns would be a HUGE improvement


About 60 years ago, my first cousin, which was an aircraft mechanic for Combs Aircraft in Denver, stretched new fabric on the wings and rebuilt the engine in his 140 Cessna. The first time he flew it with the rebuilt engine he lost oil pressure so he landed it in a field but hit an irrigation ditch and flipped it upside down. He took it to his parents farm and rebuilt it there.

I never heard what caused the loss of oil pressure but possibly lack of an oil filter?

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#4785571 - 06/13/18 07:50 AM Re: Frantz Aircraft Filter [Re: jacobs]
46Harry Offline


Registered: 01/08/12
Posts: 408
Loc: hawthorne, Ca.
I wonder if Frantz could get an STC or a field approval for their filters today? I can see the need for one in the days when aircraft engines used a strainer for filtration, but most of the engines produced in recent history have a full flow filter installed which usually keeps the engine clean enough to go to TBO and sometimes beyond if the oil analysis and compression checks show the engine to be in good operating condition.

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#4787662 - 06/15/18 06:17 PM Re: Frantz Aircraft Filter [Re: 46Harry]
Linctex Offline


Registered: 12/31/16
Posts: 6148
Loc: Waco, TX
Originally Posted By: 46Harry
most of the engines produced in recent history have a full flow filter installed which usually keeps the engine clean enough to go to TBO and sometimes beyond


I don't think the FAA STC's expire?

Yeah, no need for it.

Hard to convince aircraft owners to fix what isn't broke.
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4788024 - 06/16/18 07:44 AM Re: Frantz Aircraft Filter [Re: jacobs]
46Harry Offline


Registered: 01/08/12
Posts: 408
Loc: hawthorne, Ca.
I know that STC's don't expire and I would think that Frantz had one for that filter. I was just thinking about the FAA issuing a new STC for an external bypass oil filter today. Maybe it's just me, but I never had any faith in a TP oil filter as the paper is biodegradable and I worry about the paper disintegrating and plugging something if moisture collects in the oil. I used to see Frantz Oil Cleaners on automotive engines in the 60's and 70's, but I haven't seen one in use in quite a long time and I don't remember ever seeing one used on an aircraft engine.

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#4789192 - 06/17/18 01:29 PM Re: Frantz Aircraft Filter [Re: 46Harry]
jacobs Offline


Registered: 11/15/09
Posts: 40
Loc: Kansas
Originally Posted By: 46Harry
I never had any faith in a TP oil filter as the paper is biodegradable and I worry about the paper disintegrating and plugging something if moisture collects in the oil. I used to see Frantz Oil Cleaners on automotive engines in the 60's and 70's, but I haven't seen one in use in quite a long time and I don't remember ever seeing one used on an aircraft engine.

I have 7 Frantz filters installed on a variety of engines and automatic transmissions and some have been in use on the same engines for 50+ years without any negative effects. Although I haven't tried it, others have used TP to filter engine coolant very successfully. If there was a problem with TP disintegrating in engine oil, I'm sure the FAA would not have issued a STC for their use in aircraft.

Most modern automobiles just don't have the space to install an auxiliary oil filter otherwise I'm sure there would be many more in use.

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