riggerrob

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Everything posted by riggerrob

  1. At least this guy had the grace to commit suicide without injuring any innocents. That makes him so much better than religiously-motivated school shooters. If mental illness is the root of so many public suicides, how do we channel that energy into night-timme aerobatics versus school shootings?
  2. ***I saw a rig with a situation like yours. I noticed that someone had put an "S" fold in the webbing and sewn it to shorten that horizontal back strap to see if it would fit better. Not sure how legal that would be. He said he had over 250 jumps on it. I suggest you send it to the manufacturer for proper fix.[/quote ------------------------------------------------------------- That is not a "factory approved fix." Like several other posters have recommended: mail it to Sun Path and pay the $150. Chances are, Sun Path will send it back with a completely new lateral strap because they cannot shorten it without leaving old needle holes exposed.
  3. Is she (your rigger) retiring? When aerobatic pilots call about real king their old rounds, I mumble somethings not about no longer having access to a long table ...... bromocreasol, tensile-testing clamps, etc. Besides, most of the companies that used acidic mesh have issued service bulletins, limited canopy life or gone out of business. The last time I landed a round canopy was 1986. Most students - who learned to skydive in North America after 1990 - have only seen square canopies. Am I being cowardly or lazy?
  4. 20 years was a simple number for rigged to quote when refusing to repackage older/obsolete parachutes. After 20 years - in the California desert - containers get faded, frayed and filthy. There was a lot of progress during the 1970s and 1989s. For example, no modern rigger wants to touch round reserves made during the acid-mesh era of the mid-1980s. Our last major revolution in skydiving technology occurred around 1990 with the introduction of collapsible pilot-chutes, ZP fabric, zero stretch suspension lines, electronic AADs, ringed harnesses, free fly friendly, wing-loading a more than 1:1, etc. Since then we have only seen incremental improvements. Another difficulty - when maintaining older parachutes - is finding manuals and Service Bulletins that were published before the inter web.
  5. that's weird , you scare jumping somewhere new , but not scare of downsizing from 200 to 170 ? ——————————————————————————- That downsize might be huge for someone my weight (206 pounds before getting dressed), but less drastic for someone her size. She probably weights less than 130 pounds, so even the 170 square foot canopy will keep her wing-loading less than 1 to 1. As for being scared while visiting other DZs ..... the best vaccination is a thorough briefing by a local instructor.
  6. Aspect ratio is the key determinant in opening on heading. The farther apart end cells are, the greater the risk of one completely inflating before the other catches any air. Cross ports help reduce assymetrical openings. Off-heading openings should not be a problem with skydiving reserves. If you bought a reserve that is dangerous with off-heading openings, then you bought too small a reserve! As for stability ... the larger the end cells, the more stablity in roll. Seven-cells provide the best compromise. In comparison, the last time I jumped a 5-cell reserve, it turned allay but was unstable in roll. I did the bare minimum of turner to land on the DZ. OTOH, nine-cells have smaller ends cells = even less stable. Tapered nine-cells have even smaller end cells.
  7. ***I'm pretty sure UPT is still using that same design, though it's been a few months since I've assembled a sparkly new Vector. This design requires a #4 grommet too (a good thing to know in case you're thinking of putting a UPT PC on some other manufacturer's d-bag). The type 4 stop can pull through a #5 when it gets broken in and softens up a little. ———————————————————————————— I have also seen a few bridles attached to d-bags with fat Dacron soft-links. These were the one-use-only soft links that pre-dated Parachutes de France’s re-useable soft links. Fat suspension line is the key to preventing accidental pull-through.
  8. “Sheeple?” You are the first person to call me “Sheeple.” Hah! Hah! I am far too paranoid to blindly follow any single political agenda. I listen/read/watch a variety of news sources and eventually reach my own conclusion. My reaching my own conclusions makes true-believers - on both ends of the spectrum - uncomfortable. I often reach conclusions distinct from mainstream, politically-correct rhetoric. I am especially skeptical about family members’ statements in support of criminals. Either they were willfully blind to their relatives bad behaviour, or dogmatically support them inspite of damning evidence. CanuckInUSA: thanks for providing far more background - on the Danforth Avenue shooter - than any of the mainstream media. Now that I understand his criminal background, I have far less sympathy for him. You miss-read my comment about “psychologically challenged” criminals. I do not believe that society should cut mentally disturbed patients any more slack. Instead, I believe their guilt permeates family, friends and authorities who knew they were potentially violent, but did little to stop them. At best, they should be confined to mental hospitals for the rest of their lives.
  9. Dear Gowlerk, Thanks for writing what was on my mind. I am of two minds on the whole issue of gun control. Before I was a teenager, I was part of “the gun culture” father a shooter on the Canadian Olympic Team and army reserve officer, hunting camp, Bronze medal at the 1973 Quebec Summer Games, 13 years service in the Canadian Armed Forces, etc. I satisfied my curiosity about machine guns and rocket launchers by age 20. However, I fear the Americans fascination with guns and consider it unhealthy. OTOH I now live in a suburb and mostly associate with liberals. Most of my liberal friends know little about them and are terrified of “assault weapons.” Insert liberal, NIMBY rhetoric here.... Ironically, I share a paranoi - about government control of small arms - with American, right-wing, gun-owners. I do not own any restricted pistols because that would require telling gov’t precisely how many weapons I own and where I store them. Similarly, I did not buy any firearms during the Long Gin Registry because of paranoia. Eventually Parliament decided that the Long Gun Registry was a huge waste of tax dollars that made little difference to crime rates. Mind you, I fear fanatics on any edge of the spectrum. Only 2 drug dealers have been shot in my suburb over the last decade, so - like most Vancouverites - I believe that I can reduce my risk of violence to almost zero by avoiding the drug trade. Only two people have offered to fist-fight me (during this century) and both were suspended (from work) for issuing threats. My risk of violence is so low that I only carry a pocket knife. My size, situational awareness and stride paint me as such a difficult target for muggers that none have ever tried. In conclusion, I am comfortable with guns in the hands of competent owners - and Canadians Gun Laws - but fear guns in the hands of bumbling amateurs, petty criminals, religious fanatics or political fanatics. OTOH I intensely fear guns in the hands of “psychologically challenged” people. That list includes most drug dealers and addicts. Still not sure where I fit in the bigger political spectrum??????
  10. Stick with canopies in the 280 square feet area. That will keep your wing-loading around the 0.7 pounds per square feet favoured by BASE jumpers and precision landing competitors.
  11. Sadly, American gun culture is moving north of the border. Sunday evening (2018, July 22) a lone gun man shot at pedestrians and restaurant patrons along Toronto’s Danforth Avenue, killing two and wounding another 13. When police arrived, they exchanged gunfire with the suspect. He was found dead, a short distance down Danforth Avenue. It is not clear if the shooter was as felled by a police bullet or he committed suicide. The shooter’s family made a public statement about his depression and psychosis. Police are trying to determine how he obtained a (restricted) hand gun. Thanks USA!
  12. ...... 206 loads. ....... And all those times you'd feel your stomach lift then hear that "thump" as too many people squeezed into the back too soon and it went down on its tail. ————————————————————————- I HATE that sound! Even though I only heard it once when we stuffed 7 guys into a 206. The longest-lived jump-planes are those with the widest margins of error. If you think over-loaded airplanes climb slowly, you will enjoy their stall characteristics even less when they are unbalanced! For some silly reason, they always told me to lean over the pilots’ shoulders when the Beech 18 took off????????
  13. My favourite was the tail-gunner’s seat in a B-25 Mitchel bomber. My grin was wider than that wing-span! We were using the B-25 to test-drop Aviator PEPs for Rigging Innovations.
  14. German U-boats torpedoed several merchant ships - within sight of the American Eastern Seaboard - prior to the formal declaration of war (December 1941). US Navy ships and blimps ran “Neutrality Patrols” along the Eastern Seaboard before formal declaration of war. Threatening commerce is a sin.
  15. ........ "We cared about humanity" is revisionist bullshit. ————————————————————————————- “Outing” BSers is an important part of the democratic process.
  16. ———————————————————————- Sounds like reasonable preparation for single-instructor accompanied freetalls. I would definitely want to hear the TI’s opinion - first hand - and view video of tunnel time before going one-on-one with a free fall student.
  17. A decent list. The only canopy I would avoid is the Cricket 145 because it is mid-1980s technology and was never meant to be loaded more than 1 pound per square foot. If you over-load any reserve, we will refer to you as “that stupid, fat white man!” PDs, Optimums and Smarts are all well-respected reserves. I have only packed one or two Icarus reserves. I only have one jump on an R-Max 188. I loaded it right to the corner of the chart, but it still set me down softly. I woukd never buy an R-Max 118, but woukd seriously consider buying an R-Max 170-ish.
  18. Wing-loading is the most important variable - when predicting rate of descent. Brake position (stowed or flared) is the second, with line trim being the third. Line trim is set at the factory when they cut suspension lines. Some canopies are trimmed more steeply (nose-down) than others. Modern reserves have similar opening and flight characteristics. You made a decent choice with a used Smart 150. I have packed hundreds of Smarts that saved a few customers. I have also packed hundreds of PD Reserves and a handful of PD Optimims. I really enjoy packing Optimums because the fabric compresses so easily. I can consistently pack an Optimum 176 into a container that was snug on a PD 160. PD set the standard almost 30 years ago and all other manufacturers struggle to improve reserve performance by a percentage point or two. The only way to buy a double-digit (say 15%) improvement is buying a low-pack-volume reserve like a PD Optimum, LPV Smart of Icarus Nano. They will allow you pack an additional 15 square feet of reserve into your existing container (175 vs. 160 square feet). If I were buying new, I would purchase an Optimum 190 or LPV Smart 190. If buying used .... a lightly-used PD 176.
  19. Funny! I encountered a similar situation yesterday. Not dangerous advice, just over-cautious. I eaves-dropped on a videographer/Instructor A briefing a free fall student on riser turns and riser flares. Perhaps he talked too much about high performance landings that started with rear-riser-flares but finish with toggles. He ended with “but I have never rear-riser-stalled my canopy.” That was the only point I disagreed with. After I finished harnessing my tandem student, I strolled over and ask “May I?” He nodded, so I threw out “I have rear-riser-stalled most of the canopies that I have jumped.” I was cautious to avoid contradicting the instructor, instead phrasing my advice as filling-in-a-gap. Then talked about variations on rear-riser-stalls for a couple of minutes. I said that rear-riser-flares might not be wise on the videographer’s sub-120 canopy, but were fine on larger canopies. The student had a Falcon 235. I concluded with “.... best to practice rear-riser-stalls shortly after opening, but finish the landing with a regular toggle flare.” to reinforce his instructor’s briefing. After we both landed, I mentioned to the student that I had just practiced rear-riser-flares - with my ICARUS 364 - and concluded that it stalled with my hands at chin level. My ego let me butt in because I have been jumping 35 years longer that the Instructor A and have 6,000 jumps more than him.
  20. riggerrob

    The Last Frontier

    Well written Anita! Why did you not ask for a jump from the Breezy? A while back, I did 4 jumps from a Breezy into an EAA pancake breakfast. That seat truly shrinks an inch per thousand feet of altitude! Exits were ridiculously easy. How far back ...... hint: My canopy was a Delta II.
  21. First time I have ever heard the term "gas chambered." You guys are confusing the discussion by miss-using older terminology and inventing new terminology. IOW the language is changing faster than us old farts can keep up. Dagnamit! We learned the definition of "gun" 50 years ago and are too old and too grumpy to learn anything new! Hmmpf! Let's return this discussion to terminology that us old farts can understand. Bolt action - we agree on that term. And yes, there are a few bolt-action pistols available. They are single-shot and must be registered as restricted weapons in Canada. All pistols must be registered as restricted in Canada. Lever-action - similar to bolt-action in that they fire one bullet, then the shooter must crank the lever to re-load. Most lever-action rifles have tubular magazines and are unrestricted in Canada, as long as barrels exceed 18.5". Semi-automatic - any weapon that fires one bullet per trigger pull. .... then the action re-loads a second bullet. ... also referred to as self-loading in Britain. Semi-automatic actions include: gas-piston, direct gas impingement, gas tappet, gas trap, roller-delayed, lever-delayed, short-recoil, long-recoil, etc. As long as the barrel exceeds 18.5" most semi-automatic rifles are unrestricted in Canada. Fully-automatic - any machinegun that continues firing as long as the trigger is depressed and ammo remains in the magazine or belt. Really only accurate when fired from bipods or tripods. Ammo ranges from pistol (9 x 19mm) to 14.5mm Russian. All machineguns are prohibited in Canada meaning that it is almost impossible for civilians to own them legally. Sub-machinegun - a sub-calibre machine gun that only fires pistol ammunition: Thompson, Grease Gun, Sten, Uzi, H&K MP5, etc. Most SMGs fire from a open bolt and operate by straight recoil. Only a few fire from closed bolts (e.g. H&K MP5). SMGS are prohibited in Canada. Assault-rifle - a term coined by Nazi Germany during World War 2. Sturmgewehr 44 = storm rifle = assault rifle. Another sub-set of machineguns because they can be fired fully-automatic or semi-automatic. Assault rifles typically fire intermediate calibre ammo (7.62 x 39 mm communist, .223 calibre, 5.56 mm NATO, etc.). Because they are a sub-set of MGs, Canadian civilians are prohibited from owning assault rifles. Armalite 15 - a rifle invented by Eugene Stoner when he worked at Armalite Research during the 1950s. Original AR-15s were assault rifles that fired .223 ammo semi or full-automatic. Most modern ARs only fire semi-automatic, taking them out of the "assault rifle" category." M-16, M4 carbine etc. - US Army developments of AR-15. Assault weapon - a term coined by the US gov't in 1994 to define scary-looking weapons that had military features like pistol grips, removable magazines, bayonet lugs, flash-hiders, etc. This term is popular among anti-gun campaigners, but confuses knowledgeable gun owners. 10-round clip - first time I have heard this term. 5-round stripper clips are common military issue allowing faster re-loads while keeping the magazine in the rifle. Most rifles discard stripper clips as soon as the rifle is loaded. The confusion arises from the WW2-vintage M1 Garand rifle issued to American soldiers. Garand used 5-round enblock clips that stayed in the magazine until the last round was fired, then they were ejected. IOW you cannot fire a Garand without an enblock clip. Garand was not an assault rifle because it fired full-bore ammo and only semi-automatic. Magazine - a removable metal box containing ammunition. Double-stack, double-feed stick magazines are the most popular these days, but magazines have also included pans, drums, single stack, rotary, etc.
  22. I am surprised that no tandem mill offers to sell souvenir ripcords or goggles. In pre-Sigma days, DZs that taught students to pull drogue releases routinely lost a drogue-release handle or two every weekend. If they drop their souvenir, manifest can always sell them a replacement souvenir. Similarly, students routinely drop goggles in the grass after landing. If they lose their souvenir googles, manifest can always sell them a replacement pair and they can wear them for the rest of the day. Skydiving googles are great for starting conversions ..... which often generate follow-on business.
  23. I only have 4 jumps from a Maule and they were all tandems. We removed the rear cargo door, sat on the floor and rolled out. The exit was similar to a cargo-door Cesnba 206, albeit more cramped. Because Maules are so narrow, I cannot recommend them for regular tandem jumping. The other option is removing the co-pilot’s door. Then you exit the same way as all the rest of the piston-pounding Cessnas. The first exit is diving towards the tail, simply lad to a tandem “seated” exit. Start by kneeling or sitting - facing the tail - in the co-pilot’s position. Put your right foot in the lower, rear corner of the door. Grab the wing strut with your left hand. Dive out and feel the wind on your belly. Your spine will be vertical for a few seconds, then you will start to flatten out. The third option is poised exits starting from the co-pilot’s position. I strongly encourage you to visit a Cessa DZ - in your current country - to learn the basics of (piston-pounding Cessna exits. As for airspeeds .... just ask the pilot to fly the same airspeed he flies during normal landing approaches with enough power to maintain level flight. Ask him to keep the flaps UP.
  24. I do a variation on a “Windsor” pack. I lay the canopy on the floor and use my knees to secure the slider while gently squeezing air out .... with my belly. Then I fold the canopy in half (top to bottom) and stuff the middle into the d-bag. I keep my knees on the bottom of the canopy, firmly clamping it to the d-bag and to the floor. Once the top corners of the d-bag are full, I stuff the top quarter of the canopy into the bag. Finally, I stand the d-bag on it’s top end. I slide my fingers up the lines to confirm that the slider is all the way up, then stuff the slider and bottom of the canopy into the middle of the d-bag. I keep my weight on the d-bag until the first line-stow is fastened.
  25. The “roll” is the most important innovation introduced by the psycho-pack. Rolling from the top squeezes out air while helping control the packed canopy. I never mastered S-folding ZP fabric. I learned rolling many years before hearing about psycho-packing.