Hangering a G-IV/V

[flyin4pennies]

How high does a hanger ceiling/doors need to be to fit a G-IV/V?
Thanks in advance.

 

[h25b]

How high does a hanger ceiling/doors need to be to fit a G-IV/V?
Thanks in advance.

Just higher than the tallest point on the aircraft (most likely its tail)....

Sorry, just couldn't resist... At any rate, be careful and make sure to account for the satcom receivers that are on most aircraft of this class. These are sometimes not figured in to the manufacturer's specs. and can make a big difference in whether the thing will fit or not... I have seen more than a few hangars that have a suspicious notch carved out of the center of the entry to accomodate just this...

Try this link and click on specifications. It gives you the height.

http://www.gulfstream.com/g550/

In the case of the G550, it's 25 ft. 10 in... Not sure if that includes a satcom on the tail or not ???

 

[Flyerjosh]

One operator that I know of in VA failed to properly adjust for said antennas and other equipment and the door was 6" too short to push the plane in and out. They had to purchase one of those hydraulic lift tugs, that can lift the nose about 9" off the ground to "lower" the tail enough to get it in and out of the hangar. Talk about a PITA!

 

[h25b]

One operator that I know of in VA failed to properly adjust for said antennas and other equipment and the door was 6" too short to push the plane in and out. They had to purchase one of those hydraulic lift tugs, that can lift the nose about 9" off the ground to "lower" the tail enough to get it in and out of the hangar. Talk about a PITA!

I know of a Global Express operator that missed that little detail as well. I would love to see the look on the CEO's face when the proud Chief Pilot brings the beloved new Global home from completion only to find that the thing won't fit in to the barn... :0

 

[HawkerF/O]

Not sure of the tail's height, but the fuel oboard can be a factor as well. If you are just a few inches shy, you could put a bit of fuel on board to lower the tail. When I worked line, we had to do that to a CL60, though they typically planned for it and landed with the required amount of fuel. If it was unavoidable, we'd put 1K or 2K lbs (150-300 Gallons) on it, and it did the trick. If you had to put more than that on it, you might find another solution as your AMT probably does not want all that weight sitting on his gear for an extended period of time.

Also, don't forget the lights inside. In some Hangars, the lights can hang down below the door level, thought usually not by much.

 

[Rick1128]

We are presently planning a new hanger and for our G4, everyone we have talked with is telling us that while a 26' door will work, especially if you have some fuel in it, a 28' door is much more comfortable to fit in. Be aware that some state fire codes will require that you install a foam fire suppression system. Big bucks. One other thing to watch is the type of heater you use in the hanger. If you plan on using ceiling radient heaters, place them where they will not be near the tail when you normally put the aircraft in. The high heat levels play havoac on the tail materials.

 

[flyin4pennies]

Thanks,
we're coming up short!

 

[Flying Illini]

Toss ceiling radiant heat out the window, in floor is the only way to go. You can open the doors, pull an aircraft out, close the doors and while the overall hangar temp isn't that warm, you feel just fine being down near the heat source. Remember, heat rises and putting heaters on the ceiling means that you are heating from the top down and since you're on the bottom, you're the last to get the warmth. While you're running the water lines for the radiant heat, you might as well take them 20+ feet out in front of the doors too. Keeps the area nice and dry for pulling out and pushing in aircraft.

 

[HawkerF/O]

Toss ceiling radiant heat out the window, in floor is the only way to go. You can open the doors, pull an aircraft out, close the doors and while the overall hangar temp isn't that warm, you feel just fine being down near the heat source. Remember, heat rises and putting heaters on the ceiling means that you are heating from the top down and since you're on the bottom, you're the last to get the warmth. While you're running the water lines for the radiant heat, you might as well take them 20+ feet out in front of the doors too. Keeps the area nice and dry for pulling out and pushing in aircraft.

Good on you, Illini. Everything you said is on the mark. It's a little more expensive up-front, but in a place like a well utilized hangar, you'll realize the savings in less than a year. I remember reading about GE doing all of the things you mentioned when they built their new facality at ??SWF??. They also installed automatic door openers so they can open the door from the airplane, but I'm sure MX meets everyone of their flights, so probably never needed.

 

[Rick1128]

We discussed heating with several large hanger owners in our area and they all said ceiling radient heat was the way to go. Especially if you open the hanger door a lot. It heats much quicker. Plus while it does heat the upper air it does so at a much slower rate thyan the old style blowers. In-floor radient heat would work much better in the offices and shops. However, adding sub-surface radient heat to the area in front of the hanger door and entry door is an excellent idea.

Also on lights for the hangar, many operators in our area are switching over from the halogens to the high power flourencents. Better and cooler light, less power usage and so on. Most are figuring on a two to three year pay back.