slowing the opening on a canopy

[caspar 0]

i was wondering how manufactureres slow the openings of canopies. i guess that a larger slider is one but what other parts of the canopy do they change to slow the opening? smaller cross port vents?

"When I read about the evils of drinking, I gave up reading."

[caspar 0]

and how do these changes affect the flight/landing characteristics of the canopy. i guess something must be lost to make the openings slower.

"When I read about the evils of drinking, I gave up reading."

[darkwing 5]

nose design.

-- Jeff
My Skydiving History

[speedy 0]

Quote

nose design.

Yep. The R.A.G.E. from Paratec is a case in point. The nose design meant they had to find ways of speeding up the openings. The method used was a big hole in the slider.

Dave

Fallschirmsport Marl

[caspar 0]

in what way is the nose design changed though? is it simply made smaller so less air gets in?

"When I read about the evils of drinking, I gave up reading."

[Pendragon 1]

Fore one thing, the angle [of the nose] may be different; by that I mean if you imagine the top and bottom skins at the nose forming a plane, the amount of pitch would alter the rate of inflation.

--
BASE #1182
Muff #3573
PFI #52; UK WSI #13

[darkwing 5]

Quote

in what way is the nose design changed though? is it simply made smaller so less air gets in?

that will do it. Many years ago I experimented with nose design, starting with a stock strato-star. As I did things that closed the nose off I had to use less and less slider. Note that there are lots of ways to make it smaller, and each has aerodynamic tradeoffs in other flight regimes.

-- Jeff
My Skydiving History