strop45

To be precise, its not the winds aloft that determine the required separation, its the difference between the wind at exit altitude and the winds at opening altitude that determines separation. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Seriously you need to get past that. Consider the things that can hurt you or others first and worry about the embarrassment afterwards. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

So anyone who doesn't agree with you and the points you make is smelly?? Stay with the facts, the PAs just indicate that even you think you are losing the argument. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

At about 2000' above the DZ a cessna flew past me close enough to see the look of shock on the pilots face (maybe 50'). It was a private pilot showing a friend the airfield and while he claimed the jumpplane didn't give any radio warnings, others heard them so it was more likely his radio was on the wrong frequency (for zone he had exited) or volume low.... The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Where I give blood they advise you not to skydive, rock climb etc for 24 hours after giving blood. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Hi Steve Looking forward to doing some jumps with you. Spot you at the DZ sometime. Blue Skies Wayne. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

So is this formula only when winds at opening altitude are in opposite direction to winds at exit?? If the wind is the same at opening as exit (same direction and speed), then seperation is same regardless of actual wind speed? The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Complacency kills, but here's the thing, we are human and as you jump more you will become more complacent. I like to think that I'm a heads-up skydiver who isn't more complacent now than I was on jump 1, but that's just fooling myself. On balance I think that the added experience overcomes the complacency risk with all other things being equal. Of course as you get more experience you do risker things, you add camera gear, wingsuits, larger groups and of course smaller canopies... It would be interesting to see some analysis of incidents to see if say there are more incidents between 0 and 100 jumps than between 1000 and 1100 jumps. Anecdotally, I'd say there are more cutaways at 0-100 jumps, but are there more injuries?? The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Part of the problem might be that you are confusing size(drag) and mass(weight). Looking back at your original post, a smaller skydiver does go faster than a larger one of the same mass (weight), so perhaps your classmates were thinking of skydivers of the same mass. Compare the short fat skydiver to a tall thin one of the same weight - which is faster? The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

great idea...works well The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Basically you continue to accelerate until the drag you create balances the force your mass creates. i.e. the heavier person (with same drag) accelerates longer and goes faster. Frankly I'm not sure how/why anyone could argue the opposite. Try dropping a air filled ballon - now fill it with water which falls fastest??? Isn't this common sense. Both have the same drag, but the water filled ballon hits the ground first... formulas are f=ma and drag = k(V*V) stop accelerating when f=drag, more m more V The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Not sure of the answer, but here's Chuck Berry flying an older canopy for the first time. No-one was surprised that its was a tiptoe landing. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

It seems to me that when you push the risers apart, you are increasing the tension in the lines and opposing any increase in the number of line twists. If your canopy is still winding up then pushing the risers apart seems to be the most sensible course of action. Pushing the risers together when the canopy is still spinning relative to your body makes it easier for the relative spinning to continue and it moves the twists closer to the risers and your hands/body. OTOH, if the canopy is stationary relative to your body, i.e. it is no longer spinning up, then pushing the risers together seems like it might be a good idea. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

L&B's customer service is top class. A quick search thru these forums will show lots of very happy customers. Now, you admit that you broke the unit and wonder whether they will met the costs? You couldn't be bothered reading the manual and its their problem? Frankly it seems to me that you should pay the costs of the repair/replacement, but rather than coming on DZ.com, why not try asking them or your dealer? The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

+1 for the irony Or has your position changed? In one post you argue that people should use a rule which doesn't work(i.e. make sense) and now you argue the exact opposite. WTF ???? The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

For the record, neither the DZSO or the CSO or any of the staff at the DZ in question have ever suggested the use of such a rule, they use timed separation based on the difference in wind speeds at exit to opening altitude. And in any event, how/why do you suggest anyone uses a rule that doesn't work even if a responsible person such as the DZSO required it? If the DZSO required every second person to land downwind because "its safer if skydivers can see each other" would you do it?" The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

This is the essential problem. It seems that a great number of people have convinced themselves that they are seeing the 45 degree rule work under all sorts of circumstances. This makes discussion a waste of time. Just because it doesn't work in practice, doesn't mean it can't be made to work into theory. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Apparently saying "it doesn't work" or "its bullshit" isn't the right thing. The problem is when people who have ten times your experience start explaining it (and generally these are the only people who use it), its hard to argue against the "we'll I've been using it for 25 years and it works"!!! No amount of explanation or discussion seems to help as you are trying to tell them that they have been wrong for years? suggestions? The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

http://www.cookiecomposites.com/contact/index.htm The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

me too, related to DoS attacks in US? The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

It does actually not say that he is selling the container. I agree that it implies that the main and reserve are included, but ...... At best the ad is unclear. Either he is lying and intended to rip you off or you and he had different understandings of the deal. Either way you are entitled to your money back. Is there no small claims court or Judge Judy you can take this too... The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Damn, sounds like I had the same instructor. I was taught to turn by twisting my shoulders relative to my hips and think that's probably still the way I do it? What should I be doing? The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

Do you appreciate the irony in this statement? If it was true that driving to the airport was the most dangerous part of a skydive, then statistically more skydivers would die on the way to/from the DZ than would at the DZ. In fact many more die skydiving than driving anywhere, let alone to/from the DZ. Using this type of flawed logic would lead you to conclude than climbing Mt Everest was safer than driving, since less people die on Mt Everest than do in their cars. Repeating myths doesn't make them true. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein

did you mean

The problem is that when you are learning you will misjudge your approach sometimes. Sometimes you will be too low/the wind will be stronger than you thought and you will be short, but sometimes you will be higher/wind will be be less than you thought and you will be too long. OK, if there is no problem with this, then so be it, but sometimes you will be flying towards a significant hazard, e.g. a road complete with a fence and high voltage power line along it. Simply saying don't do this isn't enough. Maybe flat s-turns when you are too long is better than flying into high voltage power wires. If you are too long, then by definition the following jumpers are lower and will land behind you? When flying towards a hazard,IMO there is usually a better alternative to S-turns e.g. a course change, however this may mean you land in a different direction to the following jumpers. This problem can be caused by the FMD rule, as he/she is usually on a higher wind loading than less experienced jumpers and sometimes lands into the 'box canyon'. Stay safe. The difference between stupidity and genius is that genius has its limits." -- Albert Einstein