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HAWK21M
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The Cutout In The Hangar [Is It Common]

Thu Feb 05, 2004 12:23 am


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Is this cutout in the hangar common.
regds
HAWK
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SlamClick
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RE: The Cutout In The Hangar [Is It Common]

Thu Feb 05, 2004 12:46 am

I've see a few of these. Mostly in very cold places and you can see the value of that. Maybe this hangar is air conditioned.


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ben
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RE: The Cutout In The Hangar [Is It Common]

Thu Feb 05, 2004 12:46 am

There are some at LHR which have round cutouts on both doors and leave the aircraft's tail sticking out. They are for the 767 and/or 757.
 
neil49
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RE: The Cutout In The Hangar [Is It Common]

Thu Feb 05, 2004 4:29 am

Fairly common, and often seen as a modification to older hangars which were built before the advent of the LARGE aircraft.
 
737doctor
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RE: The Cutout In The Hangar [Is It Common]

Thu Feb 05, 2004 9:37 am

I just had to laugh when I saw this post, as it is my picture and I work in the hangar in question. Hell I'm sitting in the hangar even as I respond to this post.

It's pretty common. This hangar, which is here in DAL, was opened in the summer of 2002, so it is not old. It was designed to house two 700's side by side during heavy checks (1/4D and 1/2D checks). Take a look at this picture and you'll see what I mean.


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The center, where the doors meet, is the "drop-in" bay for planes that are only here a short time. For instance, say that a plane needs a quick sheetmetal repair because it was hit by a tug or something; we can pull it in partway without having to move the other two planes in for heavy check since they normally have all kinds of workstands and equipment pulled around them. The doors close to help keep the heat in during the winter and keep the mechanics from having to work in the elements. This picture was taken when the one in the original post was:


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Pretty standard stuff.

Also, the hangar itself NOT air-conditioned, I can attest to that. But we have ducts that run from the ceiling (also visible in the above pictures) which we can position throughout the aircraft to help keep cool. During the summer, in the mornings before it gets hot, we sometimes close the doors and it stays a little cooler due to those air-conditioning ducts.

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SlamClick
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RE: The Cutout In The Hangar [Is It Common]

Fri Feb 06, 2004 1:18 am

737doctor

Thanks for the real skinny. Always nice to get answers here that are not based on speculation. Second-best; if they are based on speculation that they admit it.

As a regular passenger on your planes I also appreciate that when you guys have them all torn open and their delicate innards exposed, that these doors are probably closed to the Texas wind and grit.

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cancidas
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RE: The Cutout In The Hangar [Is It Common]

Fri Feb 06, 2004 1:31 am

i know that at SWF the ANG operates a hangar for mx on thier C-5 fleet. they can fit one entire a/c in the hangar without a problem, but when they need to put two in at the same time they just won't fit. the cutouts allow them to pull the planes in as far as possible, leaving the tail outside, without having to leave the doors open. i have a pic somewhere, ah:

http://community.webshots.com/photo/49621966/55985292lsZraM
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737doctor
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RE: The Cutout In The Hangar [Is It Common]

Fri Feb 06, 2004 2:08 am

No problem, SlamClick. Just trying to help out whenever possible.

Although a few of my co-workers and I got a good laugh about the air-conditioning comment.  Smile

It gets hot as hell in these hangars in July and August...
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SlamClick
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RE: The Cutout In The Hangar [Is It Common]

Fri Feb 06, 2004 2:22 am

737doctor

I'll bet it does get hot in there. I spent a month at Fort Wolters in 1966 in pre-flight training before going to Ft. Stewart GA and Ft. Rucker AL for fixed-wing flight training. With just that brief exposure, my hat is off to anyone who can live and work in that.

There was a story running around that a guy started up a GPU in the door-well of a hanger (maybe in MSP) in the wintertime and set off the fire extinguisher system there. The water of course froze and they were unable to close one side of the hangar doors for the rest of that winter (until around June if it was MSP) The story goes they had to transfer the guy out for his own protection.

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atct
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RE: The Cutout In The Hangar [Is It Common]

Fri Feb 06, 2004 11:40 am

Hey,
At Air Heritage Museum at Beaver County Airport, KBVI, our hangar has a cutout so our C-123 Provider aka "Thunder Pig" can fit in the hangar for maintainence etc. The plane is small enough all but for the height of the tail to fit in our hangar. Just another area where you can see this type of hangar door in use  Smile

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FredT
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RE: The Cutout In The Hangar [Is It Common]

Fri Feb 06, 2004 2:31 pm

SlamClick,
flash photography does the trick for a lot of fire detectors too. I do a fair bit of photographing in the hangars in my work, and you bet I keep a close eye on the "EXTINGUISHING SYSTEM OFF" signs. Especially since we have the kind of fire extinguishers which have the ability to cover the entire hangar with foam... whoa! Do NOT want to trip that! Big grin

Ooops, that was rather off topic. Oh well. Lets bring it back on topic. I've never seen tents used in civvie world winter maintenance. Are there places where they are indeed used, when you just want to get something fixed and you're short of hangar space?

Cheers,
Fred
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HaveBlue
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RE: The Cutout In The Hangar [Is It Common]

Fri Feb 06, 2004 3:08 pm

On topic, but with a military flavor, at Patricks AFB near Melbourne, FL, they have cutaways so that the fuselage of C-130's can be housed inside the hangar whilst the larger tail is completely outside, thru the cutaway. Never asked, but as Neil49 said I assumed the hangars were built for smaller aircraft and modified when the larger cargo planes ended up being based there.
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L-188
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RE: The Cutout In The Hangar [Is It Common]

Fri Feb 06, 2004 4:25 pm

The FAA frowns on this in cold weather these days. That is why they made Alaska lengthen the hanger they are in now at Anchorage when they got if from Markair.

It was too short to take a MD-80 without part of it sticking out the end.

Northern Air Cargos hanger is too short for their aircraft too. In fact if you look at the wingtips of their DC-6's they are squared off slightly. I am told that the building pilings that hold the roof up also have a notch in then that oddly enough corresponds with the height that a DC-6's wing is at.

All to get the airplane inside the hanger.
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jetstar
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RE: The Cutout In The Hangar [Is It Common]

Sun Feb 08, 2004 6:19 am

In the military, they call these buildings with cut outs "Nose Docks". They normally use these buildings for unscheduled maintenance like engine changes.

It is a lot cheaper to build a smaller and lower hangar and over 90% of the maintenance can be accomplished in a nose dock. For major inspections a full size hangar is required.

 
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KaiGywer
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RE: The Cutout In The Hangar [Is It Common]

Sun Feb 08, 2004 11:08 am

This guy tried to make his own cut out  Nuts


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learpilot
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RE: The Cutout In The Hangar [Is It Common]

Sun Feb 08, 2004 3:41 pm

737Doctor,

Any chance you have a pic of the 747-400 in DAL that has the tail and the right wing stuck out of the hangar? It looks like a private airplane. We landed there the other day and I caught it out of the corner of my eye. I've never seen a hangar like that.

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737doctor
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RE: The Cutout In The Hangar [Is It Common]

Sun Feb 08, 2004 5:42 pm

No sir, I stay pretty much on the SWA HQ side of the field. I rarely venture over to the other side as I do not work the line. But the next time I ride over there, I will be on the lookout.
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musang
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RE: The Cutout In The Hangar [Is It Common]

Sun Feb 08, 2004 9:18 pm

British Airways at Gatwick have a double set of hangar doors, to close around the rear fuselages of a 747 or DC10. It was inherited from British Caledonian.

Both types are too long for the hangar; the 747 cutout is simply a semicircular cutout in each door, the DC10 set would meet the aircraft just ahead of the horizontal stab., so is a pair of circles, one for the fuselage, the upper one smaller, for the no. 2 engine duct.

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meister808
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RE: The Cutout In The Hangar [Is It Common]

Tue Feb 10, 2004 11:03 am

Here is another pic of a cut-out.. again a 737 is using it.


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