JAGflyer
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Tying Down Light Aircraft

Fri Sep 29, 2006 9:57 am

I am trying to learn how to properly tie down a plane. Can anyone give me a site that shows a good lesson as to how to make the proper knot (in the rope) to hold a light aircraft?
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KELPkid
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RE: Tying Down Light Aircraft

Fri Sep 29, 2006 10:03 am

I (and several others) might be able to offer advice...are you talking about using ropes or chains for the tying down?
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JAGflyer
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RE: Tying Down Light Aircraft

Fri Sep 29, 2006 10:19 am

The airplanes I will tie down will use rope already anchored on the ramp.
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MissedApproach
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RE: Tying Down Light Aircraft

Fri Sep 29, 2006 11:21 am

You may want to poke around the internet for some sailing websites, they're sure to have some excellent & useable knots. Here are some:
http://www.tollesburysc.co.uk/Knots/Knots_gallery.htm
http://www.sailingusa.info/sailing_knots.htm
Now, as for applying them to an aircraft...well, I can't be much help there I'm afraid.
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pilotpip
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RE: Tying Down Light Aircraft

Fri Sep 29, 2006 12:53 pm

A good hitch will do the trick. Make sure the rope is nice and tight before adding the knot.
DMI
 
jarheadk5
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RE: Tying Down Light Aircraft

Fri Sep 29, 2006 1:00 pm

Jeppesen teaches the bowline knot in their A&P textbooks.

You might try this as well:
http://www.airventure.org/2006/planning/tying_down.html

[Edited 2006-09-29 06:05:09]
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MrChips
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RE: Tying Down Light Aircraft

Fri Sep 29, 2006 4:21 pm

A set of heavy duty nylon cargo tiedown straps for pickup trucks can do a good job too, especially if they have a friction-based lock - just as strong as (or stronger than) rope, takes 10 seconds per side and no need to learn knots.
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futureuapilot
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RE: Tying Down Light Aircraft

Fri Sep 29, 2006 7:52 pm

Learning to Tie down a plane isn't hard, but you really have to have someone show you. Head on down to your local FBO and have a line guy show you. Once you learn the knot, your all set!

-Sam
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N231YE
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 12:00 am

At BGSU, we kind of cheat. We have these nylon straps with hooks at either end, and a unique tightening device. All I have to do is attach one hook to the airplane, and the other, to the ground, and push a button on the device and pull until I get the tightness I want. If I decide to fly the airplane later, then I push a button on the device and push the extra slack into it, and then remove the hooks.
 
2H4
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 12:26 am



Many people get the knots right, but leave the airplane in an unsafe position. Here's what I mean:


This airplane is positioned improperly. Without chocks, it would roll backward 6 or so feet and the tiedowns would all become loose. This would allow the airplane to move around in high winds.




--------------------------------------------------


This airplane is positioned properly. Because it is positioned behind the wing tie-downs, it is properly anchored in both directions. Even if this airplane wasn't chocked, it wouldn't roll forward or backward, because the wing and tail tie-downs are opposing each other.






2H4


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Buzz
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 12:42 am

Hi JAGflyer, Buzz here. I saw a recent magazine article AOPA Flight Training and there was a section on tie-downs and knots. You might find it on line.

A paragraph in the 1947 Aeronca Champ manual cautions pilots to tie down the aircraft anytime you leave it... empty weight is about 800 lbs or less, so these are pretty much Classic Ultralights. I keep my distance from helicopters.

g'day
 
KELPkid
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 1:49 am

Just to add additional info to what everyone is saying here (and I used to be a lineboy  Wink ), the objective of tying down an aircraft is 1) make sure the plane stays on the ground during a gust of wind 2) make sure the plane can't be moved by the wind and 3) make sure the rope/chain slack is secured in such a way that it can't get blown into the aircraft itself on a gusty day (#3 is the one I call line personnel on all the time when I take a rented 172 cross-country...).

If there is a lot of slack rope/chain left over after tying the aircraft down, tie the rope/chain off using a single knot spaced every 18 inches or so (half a meter for you metric dudes  Wink ). Most chain tiedown setups have an extra hook in the chain for tying off the slack or adjusting a high-wing tiedown for a low-winged aircarft, but I've encountered ones that don't.

Also, if you make the rope so tight that it is pulling the aircraft, back off-the aircraft owner won't be too happy when they come back out to the plane.

Remember, treat every plane like it's your baby. You will be rewarded with complements by aircraft owners, and word spreads fast about poor line service (check out airnav.com and the FBO comments at your favorite airport!).
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KELPkid
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 2:18 am

Quoting 2H4 (Reply 9):
2H4

Boy, the pilot of PH-JNP needs to do a better pre-flight, the reason he isn't moving is that he left the tiedowns on  Wink Big grin
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flyf15
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 5:33 am

One trick I used to use back in the day when I was flying general aviation a lot... tie the two wings down first, then using the tail tiedown rope, pull the airplane back to snug up the wings nicely before tying the tail down. Makes the airplane very snugly tied down compared with just tying 3 knots.
 
DeltaGuy
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 8:50 am

Those walmart nylon straps are the cheaters...I usually always manage to pinch my hand in them. Gimme a good set of nylon ropes and you're good to go.

At some military fields I've gone into with the T-34, all there is he standard chains to tie it down..fun trying to put them through the GA-standard eyelets without totall destroying the paint.

DeltaGuy
"The cockpit, what is it?" "It's the little room in the front of the plane where the pilot sits, but that's not importan
 
2H4
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 11:44 am



Also, if you want to go the extra mile, remember the nose tie-down on many Cessnas:





2H4


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JAGflyer
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 11:56 am

One of the more experienced rampers showed me how to do the tie down. A few people have shown me but I didn't get it really until today. We make one knot, "lock it" by doing another knot, repeat that knot a bit lower and then do another basic knot (just a quick figure eight as back up). I'll figure it out after I do it a few times. All the rampers do it the same way. Only the students/pilots do it different. :p I still prefer chocks. We die down each wing and the tail. No tie down at the olio.

I am doing my high school co-op at an airport as a line guy. So I gotta know how to tie down a plane

[Edited 2006-09-30 05:00:38]
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2H4
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 12:05 pm




Quoting JAGflyer (Reply 16):
I am doing my high school co-op at an airport as a line guy.

Congrats on the co-op...you'll love it! Although you'll certainly experience your share of sub-zero kerosene-soaked windchill misery, you'll learn a ton and will be glad you jumped on the opportunity.

Keep a camera handy and have fun!  Smile



2H4


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flymatt2bermud
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 4:53 pm

Quoting 2H4 (Reply 15):
Also, if you want to go the extra mile, remember the nose tie-down on many Cessnas:

I had forgotten all about that nose tie-down! Thanks 2H4! Also, I think you should patent the bright (remove before flight) red tie down ropes in your photo examples!!
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2H4
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RE: Tying Down Light Aircraft

Sat Sep 30, 2006 10:19 pm




Quoting FlyMatt2Bermud (Reply 18):
I think you should patent the bright (remove before flight) red tie down ropes in your photo examples!!

You know, come to think of it, I've only ever seen non-white tiedown ropes once. They were bright yellow. Because they were made from a hard plastic-like material (and not fabric), knots wouldn't hold at all. You may be on to something, though....it seems logical to make tiedown ropes a bright color.



2H4


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