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#11
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Eric Greenwell wrote in message ...
Part of my thinking was practicing, really physically practicing exiting the glider (meaning were you can actually jettision the canopy and roll out, not just sit there and visualize it), and the thinking that goes with it, might make a person more mentally ready to do it in a real situation. Some people like to exit the glider by releasing the seat belts, releasing the parachute harness, and stepping out without the chute. I hope that primacy takes a back seat for an emergency exit. Please always exit the glider *then* remove the parachute. Andy |
#12
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Bill Zaleski wrote in message . ..
Yes, ask him how he is going to comply with the regulation: No certificated parachute rigger may pack a parachute that has not been thoroughly dried and aired. Normal manufacturer's instructions call for an 8 hour airing. Perhaps he is airing it in advance? Hope so. Bill Z. Master Rigger I have had my chutes packed without 8 hour airing. I looked through the manuals for my Strong 303 and my Security 350. Although both manuals contain detailed packing instructions, I found no reference to a required airing period. If an 8 hour airing is required where would it be specified? Andy |
#13
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Unfortunately, the re-pack class was called off due to weather last night.
I agree with Andy and Eric, practicing cockpit egress is worthwhile. IMHO, actually making a tandem or static line jump is not. A real jump puts you at risk of a broken bone or two and the experience is not the same as a real emergency jump anyway. I've practiced egress with every glider I have flown while wearing a parachute. I have found it usually takes a somewhat unorthodox exit procedure. In my Nimbus, what works for me is to pull my legs out from under the panel and swing the left leg over the side before trying to lift myself up. That way by pulling with my left leg and pushing with my right, my leg muscles can help pull me out. What works for your physique and your cockpit will almost certainly be different. I wish I could fit the CG NOAH inflatable seat cushion. That looks like a real advance. Maybe, we need a "shorty" version of the air bag that would raise the pilot into a seated position with his legs pulled out from under the panel. Anything that would help the pilot get up out of that "bath tub" would help. Bill Daniels "Andy Durbin" wrote in message om... Eric Greenwell wrote in message ... Part of my thinking was practicing, really physically practicing exiting the glider (meaning were you can actually jettision the canopy and roll out, not just sit there and visualize it), and the thinking that goes with it, might make a person more mentally ready to do it in a real situation. Some people like to exit the glider by releasing the seat belts, releasing the parachute harness, and stepping out without the chute. I hope that primacy takes a back seat for an emergency exit. Please always exit the glider *then* remove the parachute. Andy |
#14
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Have him show you how to perform a proper pin check and visual
inspection. Every time we put our parachute on we should have performed this. I have 1000's of parachute jumps and KNOW how important it is to do this EVERY time and believe me I did it every time when I was using it every time! I have known people who have died due to malfunctions which would have been detected by a pin check. Yet, even I do not do this every time now as a pilot, go figure. My wife, who also has lots of jumps, busts me on it regularly. Bless her heart. I firmly believe that if we had a test at the next nationals less than 20% of the pilots would know how to perform a pin check and few if any would admit they had performed one on the last 50 flights. My point: Every time we have our 'chute repacked we should review our pin check and inspection practices with our rigger. What benefit is there to wearing it if it doesn't work? Just a small piece of gravel in the cable housing can cause a total failure (ie: no parachute no matter how hard you pull). Visualize THAT. 'When ants look like people.....' "Bill Daniels" wrote in message news:hZAhc.184310$JO3.104818@attbi_s04... I'm going to watch my parachute get repacked this evening. The local Master Rigger is teaching a rigging class and I'm invited to watch him repack my 'chute in front of the class. Can I ask him any questions for r.a.s.? Bill Daniels |
#16
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Bill Zaleski wrote:
It is an industry standard best practice and can be found in most of the military and civilian documentaion. The word "thoroughly" as per the FAR's implies just that, and is not necessarilly an interval specifically specified by the manufacturer. I have known and worked with Ted Strong for over 20 years. He will tell you 8 hours minimum. Opening (fill) time of the canopy varies with moisture content of the fabric. Does it matter what the ambient humidity is? Florida can be 60%+ relative humidity and "airing" the chute might make it damper than a chute kept in it's container in Tonopah, Nevada, or other low humidity place. -- ----- change "netto" to "net" to email me directly Eric Greenwell Washington State USA |
#17
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I have never seen any mention of ambient humidity in relation to
airing/drying, but of course the % will effect it some. As long as it is not noticably damp, I don't give it much consideration. Actually, a humid day makes the packing much easier, as the pack volume is decreased by the amount of air that you can squeeze out of the canopy. On Thu, 22 Apr 2004 17:32:52 -0700, Eric Greenwell wrote: Bill Zaleski wrote: It is an industry standard best practice and can be found in most of the military and civilian documentaion. The word "thoroughly" as per the FAR's implies just that, and is not necessarilly an interval specifically specified by the manufacturer. I have known and worked with Ted Strong for over 20 years. He will tell you 8 hours minimum. Opening (fill) time of the canopy varies with moisture content of the fabric. Does it matter what the ambient humidity is? Florida can be 60%+ relative humidity and "airing" the chute might make it damper than a chute kept in it's container in Tonopah, Nevada, or other low humidity place. |
#18
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Bill Zaleski wrote in message . ..
It is an industry standard best practice and can be found in most of the military and civilian documentaion. The word "thoroughly" as per the FAR's implies just that, and is not necessarilly an interval specifically specified by the manufacturer. I have known and worked with Ted Strong for over 20 years. He will tell you 8 hours minimum. Opening (fill) time of the canopy varies with moisture content of the fabric. How does the opening time vary with fabric moisture content? Does it open faster dry or moist? Andy |
#19
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I am given to understand that the military when packing
a canopy into the head box of an ejector seat use a hydaulic ram and they have to wet the canopy first. Have I been misled? The canopy in my parachute is identical to those used by the RAF. At 22:54 22 April 2004, Bill Zaleski wrote: It is an industry standard best practice and can be found in most of the military and civilian documentaion. The word 'thoroughly' as per the FAR's implies just that, and is not necessarilly an interval specifically specified by the manufacturer. I have known and worked with Ted Strong for over 20 years. He will tell you 8 hours minimum. Opening (fill) time of the canopy varies with moisture content of the fabric. On 22 Apr 2004 07:01:16 -0700, (Andy Durbin) wrote: Bill Zaleski wrote in message news:... Yes, ask him how he is going to comply with the regulation: No certificated parachute rigger may pack a parachute that has not been thoroughly dried and aired. Normal manufacturer's instructions call for an 8 hour airing. Perhaps he is airing it in advance? Hope so. Bill Z. Master Rigger I have had my chutes packed without 8 hour airing. I looked through the manuals for my Strong 303 and my Security 350. Although both manuals contain detailed packing instructions, I found no reference to a required airing period. If an 8 hour airing is required where would it be specified? Andy |
#20
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A moist canopy will fill, (open), faster since the effective porosity
of the fabric is reduced. That sounds like a good thing, and it is, unless you are making a terminal velocity opening. There are two categorys of emergency parachute, low and hight speed. The breakoff speed is 150 MPH. Gliders don't need the faster, more expensive system, but if you delay the opening past the 150 speed, you become a test jumper. On 23 Apr 2004 03:59:34 -0700, (Andy Durbin) wrote: Bill Zaleski wrote in message . .. It is an industry standard best practice and can be found in most of the military and civilian documentaion. The word "thoroughly" as per the FAR's implies just that, and is not necessarilly an interval specifically specified by the manufacturer. I have known and worked with Ted Strong for over 20 years. He will tell you 8 hours minimum. Opening (fill) time of the canopy varies with moisture content of the fabric. How does the opening time vary with fabric moisture content? Does it open faster dry or moist? Andy |
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