Today's Message Index:
----------------------
1. 10:53 AM - O2 in air tank?????? (N395V)
2. 11:09 AM - O2 in air tank?????? (A. Dennis Savarese)
3. 12:06 PM - Using O2 to start your engine (Steve Culp)
Message 1
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| Subject: | O2 in air tank?????? |
Just got the following e mail from a friend.
> Just a word of caution-----perhaps something you already know, perhaps not.
>
> A friend with Murphy Moose that has the same engine you have in the Gryphon,
just had a strange and costly mishap -----
>
> He ran the air tank down trying to start a flooded engine. Apparently, when the
tank was recharged, someone put oxygen in. This happened at another airport,
not his home, and he was not aware of the problem.When he started the engine,
it backfired violently, but started.
>
> Not being aware that there was anything wrong, he flew home. The next time he
tried to start, no air pressure.
>
> Seems that when it backfired, the pressure was so extream that it blew a 3000#
line at the engine, as well as another fitting on a hard line, and lastly, blew
the air start distributor apx 3" off the engine.
>
> Bent the lines to the cylinders, and stripped the studs out of the adapter that
the air distributor sits on.
>
> Moral of this story, if you need an air fill, be sure that it is air, or nitrogen,
not oxygen.
>
Are the O2 transfill adapters compatible with the fill connector on the air tanks?
--------
Milt
2003 F1 Rocket
2006 Radial Rocket
Some people live an entire lifetime and wonder if they have made a difference to
the world, but the Marines dont have that problem. - Ronald Reagan
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=103699#103699
Message 2
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| Subject: | O2 in air tank?????? |
This same situation happened a few years back and literally ejected the
pilot from the Yak 52. It blew lines, tank and everything else. If someone
was in the back seat, they would not have made it because of the shrapnel.
Although there is no clear way to prevent someone unfamiliar with the
airplane with filling the pneumatic system with O2, putting a conspicuous
label at/around the external air fill port saying "compressed air only" in
big, bold, letters may help at some point in time.
Dennis
"An ounce of prevention is worth a pound of cure"
----- Original Message -----
From: "N395V" <n395v@hughes.net>
Sent: Thursday, March 29, 2007 12:53 PM
Subject: M14PEngines-List: O2 in air tank??????
>
> Just got the following e mail from a friend.
>
>
>> Just a word of caution-----perhaps something you already know, perhaps
>> not.
>>
>> A friend with Murphy Moose that has the same engine you have in the
>> Gryphon, just had a strange and costly mishap -----
>>
>> He ran the air tank down trying to start a flooded engine. Apparently,
>> when the tank was recharged, someone put oxygen in. This happened at
>> another airport, not his home, and he was not aware of the problem.When
>> he started the engine, it backfired violently, but started.
>>
>> Not being aware that there was anything wrong, he flew home. The next
>> time he tried to start, no air pressure.
>>
>> Seems that when it backfired, the pressure was so extream that it blew a
>> 3000# line at the engine, as well as another fitting on a hard line, and
>> lastly, blew the air start distributor apx 3" off the engine.
>>
>> Bent the lines to the cylinders, and stripped the studs out of the
>> adapter that the air distributor sits on.
>>
>> Moral of this story, if you need an air fill, be sure that it is air, or
>> nitrogen, not oxygen.
>>
>
>
> Are the O2 transfill adapters compatible with the fill connector on the
> air tanks?
>
> --------
> Milt
> 2003 F1 Rocket
> 2006 Radial Rocket
> ?oSome people live an entire lifetime and wonder if they have made a
> difference to the world, but the Marines don?Tt have that problem.? -
> Ronald Reagan
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=103699#103699
>
>
>
Message 3
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| Subject: | Using O2 to start your engine |
I am suprised the O2 did not explode when introduced into an oily contianer under
psi. That is why the big warning not to oil fittings on O2 regulators.
Some people are lucky because its not like the fittings would allow you to use
an OS bottle to air up a Russian airplane. Someone had to change some fittings
around.
I have also enjoyed hearing about guys trying to start on nitrogen.
Steve
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