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Engine Inlet Plugs - Type

Posted: Wed Feb 14, 2007 1:03 am
by HAWK21M

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Photo © Rhys Dudley


What material are these Inlet plugs of & How are they attached.
regds
MEL

RE: Engine Inlet Plugs - Type

Posted: Wed Feb 14, 2007 1:16 am
by N231YE
Considering that the aircraft is a static display, my guess is that the covers are permanent/semi-permanently attached to the engine. I have seen these covers on museum-housed aircraft before, but I am not sure of their composition.

Some sort of plastic/polycarbonate?

RE: Engine Inlet Plugs - Type

Posted: Wed Feb 14, 2007 1:26 am
by BAE146QT
Quote:
Note the clear coverings to protect the engine internals and fans.

Definitely polycarbonate or some sort of acrylic.

RE: Engine Inlet Plugs - Type

Posted: Wed Feb 14, 2007 1:27 am
by HAWK21M
Quoting N231YE (Reply 1):
my guess is that the covers are permanent/semi-permanently attached to the engine

The brackets on the ends seem fixed to the Engine Inlet inside.
So these are Permanent/Long term storage plugs.

regds
MEL

RE: Engine Inlet Plugs - Type

Posted: Wed Feb 14, 2007 1:41 am
by BAE146QT
Quoting HAWK21M:
So these are Permanent/Long term storage plugs.

I'd say so. Have a look at this picture;

https://www.airliners.net/open.file/0956489/M/

I'd say that bird isn't ever going anywhere again. It's the Qantas Founder's Museum, apparently.

RE: Engine Inlet Plugs - Type

Posted: Wed Feb 14, 2007 4:41 am
by troubleshooter
You´ll find this type of "cover" very often when there is actually no engine installed! I would guess this could be the case here. Note the painted "fan blades" on the cover...

RE: Engine Inlet Plugs - Type

Posted: Wed Feb 14, 2007 5:55 am
by N231YE
Quoting Troubleshooter (Reply 5):
You´ll find this type of "cover" very often when there is actually no engine installed! I would guess this could be the case here. Note the painted "fan blades" on the cover...

That is true, however...


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Photo © Ryan Callaghan



...in this case, the photographer of this photo writes:

Quote:
Close up of VH-EBQ's number 3 engine apparently still in working order.

RE: Engine Inlet Plugs - Type

Posted: Wed Feb 14, 2007 4:52 pm
by HAWK21M
Any Instance of usage of Transparent Plugs for normal Layover FOD protection.
regds
MEL

RE: Engine Inlet Plugs - Type

Posted: Thu Feb 15, 2007 4:48 am
by SkydrolBoy
Quoting HAWK21M (Reply 7):
Any Instance of usage of Transparent Plugs for normal Layover FOD protection.

I doubt it, all plugs I have seen used for FOD protection on serviceable a/c are painted bright red or orange. Somehow I think that if they were transparent we would be reading a story about someone forgetting to remove them.

RE: Engine Inlet Plugs - Type

Posted: Thu Feb 15, 2007 8:30 am
by N231YE
Quoting SkydrolBoy (Reply 8):
I doubt it, all plugs I have seen used for FOD protection on serviceable a/c are painted bright red or orange. Somehow I think that if they were transparent we would be reading a story about someone forgetting to remove them.

Good point, I never thought of that...

RE: Engine Inlet Plugs - Type

Posted: Thu Feb 15, 2007 11:18 pm
by HAWK21M
Quoting SkydrolBoy (Reply 8):
Somehow I think that if they were transparent we would be reading a story about someone forgetting to remove them.

True.
Out here We use the Bright Yellow Cap type plugs for the B737s Inlet & Exhaust & The Tarpaulin type for the B757 Inlets.
regds
MEL

RE: Engine Inlet Plugs - Type

Posted: Sat Feb 17, 2007 1:29 pm
by L-188
Quoting Troubleshooter (Reply 5):
You´ll find this type of "cover" very often when there is actually no engine installed! I would guess this could be the case here. Note the painted "fan blades" on the cover...

I think you are correct.

Engines are worth money, no point in giving them to a museum.

RE: Engine Inlet Plugs - Type

Posted: Sat Feb 17, 2007 10:44 pm
by FredT
Quoting Troubleshooter (Reply 5):
You´ll find this type of "cover" very often when there is actually no engine installed! I would guess this could be the case here. Note the painted "fan blades" on the cover...

To get that out of the discussion once for all: Those are transparent covers. No painted fan blades, and actual fan blades behind the covers.

Shouldn't be too difficult finding engines of that type which are at the end of their service life.

Rgds,
/Fred