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QuickBurst 100% Nomex III Deployment Bags
A deployment bag offers several advantages to the rocketeer. The first is to provide protection of your valuable parachute, we are all to familiar with burn holes and staining of our chutes from repeated ejection charges. Another advantage is referred to as gradual deployment. Tossing a parachute out at high speed can cause undue stress on the canopy and the shroud lines. This damage will accrue with each flight, prematurely aging your recovery system. Using a deployment bag will address both of these issues. Your parachute will now be sealed in a 100% Nomex Deployment Bag. No more burn marks or holes and no more parachute repair. As the bag is ejected the shroud lines will be played out until they are extended to their full length. At this time the pilot chute will pull the bag off of the canopy and your chute will open gracefully. This makes life for your chute much easier and will increase its useable lifetime many times over.
Your bag is designed to be loaded and dropped into your airframe. The Pilot chute and the force of ejection will take care of the rest. Each bag is made from 100% Dupont Nomex III. This material is very heat resistant, up to 800 degrees Fahrenheit for a brief period of time and sustained temperatures of up to 400 degrees Fahrenheit. It will not support combustion. All seams are sewn with Nomex thread. The strap is made from 9/16 Tubular Nylon and is rated at 1200 lbs. Many times more strength than what is needed.
Procedure:
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A Picture is worth a thousand words. (Under Construction) |
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Loading the bag could not be simpler. Extending out of the open end of the bag is a 9/16 Tubular strap with a pre-sewn loop. Attach this loop to the top of your chute. Some parachutes are equipped with a loop sewn into the top just for this purpose. If your chute does not have this feature you will need to add one, or return your chute to the manufacturer for the addition. You can also ship it to me and I will do it for you for a nominal fee, email me and I will send you a price, you will need to provide shipping charges both ways. Contact me for details. |
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Now fold your chute in your normal manor. |
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Hold your chute by the bottom and drop it into the bag. The bags internal attachment cord always goes in first, followed by the chute. You may need to do a little stuffing here. Dont worry it will come out when needed.
Hint: Use a little baby powder on your chute and in the bag, this is a great dry lubricant. |
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Now accordion fold the shroud lines in three or four inch loops.
Notes: I usually place a thin rubber band around the shroud line bundle. This needs to be a thin weak rubber band, choose one that will break easily. The rubber band is not required. The bag will work fine with out it. Another trick is to add a short piece of Tubular Nylon, about three feet works well, to the bottom end of your shroud lines. This piece will be used to exit the bag and tie to your recovery harness. |
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Now stuff the shroud lines into the bag. Leaving about a foot of the added shock cord hanging out. |
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Make sure you have the chute and shroud lines all the way in the bag. There should be a little bit of the bottom of the bag left over. I call this the skirt. |
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Fold the skirt up and place another rubber band around the bag. This will keep things nice and neat.
Note: The rubber band is optional. A simple fold will work as well. The airframe will keep things in order. |
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Now you should be looking at a nice little round package. With a shock cord hanging out of the bottom and a short piece of 9/16 tubular nylon at the top.
Note: The rubber band is not over the shock cord, it is around the bag only. This is done so that the rubber band will not stay on the cord, it will fall away. |
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The top nylon strap has a small loop sewn into it. Attach a pilot chute here. A good pilot chute is similar to a drogue. I use a Top Flight UXTPAR-24 for this. The pilot does not need to be big, a 24 chute is fine. |
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Assemble the rest of your recovery harness. |
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Drop the bag into the recovery bay, pilot on top, assemble your rocket and let her rip. |
What to expect:
When the main charge goes off the nose cone will deploy from the rocket as normal. The nose cone will drag the bag out exposing the pilot chute. The pilot will open, pull the skirt open and pull the shroud lines out until tight. When the end of the shroud lines is reached the pilot will pull the bag off of your main chute and it will open, gracefully.
Smooth as silk. You will wonder why you didnt do this before.
Notes:
Room? The bags are designed to fit into their respective airframes loosely. It should fall out of the recovery bay when inverted. Do not pack the bag so full that it will not deploy. If you are having to do this you will need to order a longer (custom) bag or use a smaller chute. Contact me for a quote, I can make any size bag needed. As an example I use the NDB4 bag in my four inch LOC airframe. I pack a Top Flight 80 X Form chute in it and it fits comfortably. The bags are designed to be wide and long enough to hold most parachutes and leave room for the bottom end fold over. There are always exceptions, I can not guarantee that your chute will fit into our bag.
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QuickBurst Part #
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Suggested Use:
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Actual Size of Bag
Inches (OD X Length)
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NDB4 |
Fits most 4 air frames |
3.5 X 20 |
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NDB6 |
Fits most 6 airframes (or LOC 5.38) |
4.75 X 28 |
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NDB8 |
Fits most 8 airframes (or LOC 7.51) |
7 X 28 |
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Custom sizes are available at reasonable prices. Contact me for a quote. We will make your bag to your specs.
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Shipping is Priority Mail ($6.00) w/delivery confirmation. To send your order via e-mail or just ask a question please click here.
