Re: [wwarped] practicing accuracy skydiving with a BASE canopy?
wwarped wrote:
while there is nothing inherently wrong with your plan, I always wonder why?
I've watched professional skydivers with over 10,000 jumps from planes run out of landing area and end up with their parachutes in trees because the skills don't transfer that well. With over a thousand jumps and consistently landing a 105 where ever I wanted I did the same thing. Having witnessed plenty of other guys at varying experience do the same thing I'm forced to conclude that flying BASE approaches like in a skydiving environment fails too often.
In reply to:
eventually, skydiving a BASE canopy can feel like a penalty.
Classic accuracy with a BASE canopy is like playing 8 ball. It's rewarding in its own way but not exciting.
In reply to:
think in terms of cars...
can you transition seamlessly between a compact car and a giant SUV?
Car and motorcycle is a better analogy. Using a motorcycle like a car works a lot of the time. There are situations where there's no equivalent and driving experience doesn't help, like when you put 600+ pounds of bike and luggage on its center stand at the gas station. There are situations where things work differently - too much braking turning in a car usually means under steer and going straight while a handful of front brake on a bike leads to a low-side crash.
The equipment and situations are very different.
Modern skydiving canopies flatten out with a bit of brakes and keep about the same glide ratio until just short of their stall point. BASE and accuracy canopies get steeper from somewhat flatter than 2:1 to less than 1:1 at approach speeds which produce a pleasant flare and can be controlled in a straight-down sink.
You really want to learn to exploit that instinctively before you need to.
Skydiving is done at dropzones in wide open areas with relatively predictable winds (you can get some change dropping into a slight depression). Fun BASE jumps can happen in interesting places like the confluence of three canyons with radically varying winds along the way.
The skydiving approach of flying a pattern based on known objects, some planned adjustments, and tweaks rounding off corners and flattening or steepening things doesn't translate well to the BASE environment.
Missing the best few thousand square feet of your skydiving landing area might mean loosing the swoop-and-chug competition but is otherwise irrelevant. Missing that on a BASE jump might mean your best choice is a 10x10x10' boulder with a flat top where you need to run up stream and haul in the canopy before your pilot chute lands in the river (while exciting that's not the sort of excitement you want to seek out), tree landing, or getting up and personal with a cliff wall.
It's much more important to get things right in interesting BASE landing areas that don't even meet the USPA's 5000 square foot minimum recomendation for pro-rating holders doing demos.
Becoming proficient at braked approaches under a BASE canopy will make your life a lot more pleasant where the situation makes planning for it a good idea or things get screwy (the idiot you jump with has a wall strike, you're paying more attention to him in the landing area than getting to the ground on your own, and need to sink before running out of space).