MrHixxx

I asked this question to the folks at PD some time back. This is the reply I received... -Hixxx I have put together a reply based off mine and other feed back from everyone at PD and here are some answers to your questions: Why don't we use ZP fabric in our reserves? First, the tear strengths listed in the specs are very misleading, for two reasons. The tear strength is measured at a specific tearing speed, measured as a certain distance per unit of time. When you tear things relatively slowly, the tear strengths are quite high. However, when you increase the speed of the tearing motion, the actual forces required to keep the tearing motion progressing actually go down. The tear spec is measured at a standard 12 inches per minute, a rate at which the ZP fabric looks superior to the standard fabric. However, this tear speed is not very realistic compared to the way a canopy would really tear. Because of this, we have created our own testing machinery that can measure tear strengths at up to 150" per SECOND. When you measure the tear strength at a high tearing speed more like what would happen in reality, the tear strengths go way down, to the 3 to 7 pound range. The standard fabric actually has a higher tear strength at these speeds than the ZP fabric torn at the same speed. So to cut it short, the tear strength of the ZP fabric is lower than that for the F-111 style fabric when the tear speeds are up where things would be in an actual failure mode. When a ZP canopy fails, it is typically pretty catastrophic, with tears going every which way in unusual patterns. On F-111 type canopies, the damage is typically more localized. Other reasons to not use the fabric? The benefit of ZP fabric is partially the fact that is stays low porosity. If that is an issue on your reserve, you are using it way too much. Another benefit is the presumed aerodynamic advantage. In reality, the aerodynamic performance is due to other aerodynamic issues such as better airfoils, aspect ratios, trim, etc. These items aren't suitable for reserve designs, due to opening issues. When you use good reserve aerodynamics, but throw the ZP fabric in there, you don't really get an improvement in landing performance. An example of this can be seen by comparing the ZP lightning crew canopy to a ZP Spectre. The two canopies are designed to do separate things. The Lightning lands well for a CRW canopy, but is relatively tricky to land compared to the Spectre, even though both canopies have ZP fabric. death,as men call him, ends what they call men -but beauty is more now than dying’s when

I would have to say. Tshirthell.com has some of the most respectable NSFW designs I have ever seen. See samples... xxx, Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

That's not chocolate. That's the first female member of the Dirty Sanchez bruthas. Of course, all the members showed up to initiate her... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

Where do you think I got the nickname MrHixxx (action adventure editor)... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

It is my birthday too. Happy Birthday to us! -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

Here are my boys. One is a White Crested Eastern Nebraskan Gummy Bear Eating Leaf Hopper named Drake, the other is a Pit Bull Pup named Chewy. Some times it is hard to tell them apart... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

I dug Bugs Bunny as a kid. Some other favorites were Underdog and Mighty Mouse... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

Who needs Rodriguez Brothers when there are Dirty Sanchez Bruthas... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

My little pitbull puppy sleep barks and runs. He'll be laying on his side and his legs start kicking and he makes little muffled barks. Probably dreaming about chasing my girlfriend's husky around (his best non-human buddy). -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

Don't sweat it. Scars are sexy. The true meddle of a Skydiver/Volleyball player is in the scars. When some jughead is whining about old football injuries, say "Oh yeah Fucker, check this out!" Safe Swoops and Sadistic Slams, Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

In relation to safety in the sport... Stay current, skydiving is not a half-hearted past time. If you are going to jump, jump often and practice emergency procedures. Maintain your gear. If you want your rig to serve as a life saving device, treat it like it is a life saving device. It is that simple. Keep your ears open. There will always be more to learn. There is no plateau of invincibility in this sport, not even with several thousand skydives under your belt. Under canopy, keep your head on a swivel, cause your ass is in your hands. -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

That's when you just start singing the song "Women in Uniform" from the first Iron Maiden album. Remember how much they despise immaturity... Use your assets man! -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

Your not afraid of getting a little paint on your taint are ya? -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

So me and a few friends were joking around at the WFFC and came up with an idea for a new skydiving brotherhood. Once the dust settled and the laughter subsided, this is what we had. Whadya think? -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

I concur. Mads Larson just won't rest until everyone is satisfied. He replaced mine when I was having battery consumption problems and replaced my sister's when it failed. He makes the extra step to make things right in all cases! -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

I got hit too. Thanks for the fix. I just had a talk with my PC about STDs. Let's hope it doesn't happen again... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

HI triple X vibes... I landed out on 1 of 2 jumps in Rantoul and watched people land out constantly. The spotting was pretty much out of control. I am sorry to hear too many factors stacked up against her. Heal soon... xxx, Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

We bailed out and went to Ottawa after checking the outlook this morning. It is nice up here with 3 Otters running, just two hours North... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

"Scrap the pussy Clyde..." -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

I am headed out Thursday too. Anyone between Omaha and Rantoul betta watch their ass or suffer the Mr Hi "XXX" hello... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

Hey man, I am there. pd143r and Xaos 21 (7 cell/tricell). Whoop Whoop... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

Drake and I just adopted a Pitbull pup this week. He was getting munched on by his bros and sisses. So, the breeder gave him away. We named him "Chewy" (that is what his siblings said he was). You can't beat a pit as a people pleaser. Their natural disposition is affectionate and goofy. -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

I'll tell you what my significant other says when I ask her that. Yes, of course I miss you, but I gotta another brick and I won't miss with this one! Welcome back. I went to a tunnel camp a year ago and there was some little people in there. It was so cool to see a 5, 7, 11 year old in there flyin' their little bods. -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

Seems like a poor selection process. One would think that the top ten overall (tour ranking) is a more valid measurement of who is the best. The swoopers I have talked to say consistency is everything... The 4th ranked overall isn't on the team, but the 37th is??? I guess it comes down to who has the backing to show up at the Country Club that day... -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when

35 going on 13. -Hixxx death,as men call him, ends what they call men -but beauty is more now than dying’s when