What would be the size of the smallest pack that coukd contain a parachute an averaged sized person could use safely?

No reserve? One time use of harness and strapping would reduce size.

Wouldn’t be much. How big is the minimum ‘chute required? 6 sqM?

1.5 litres?

35 sq ft apparently.

https://www.youtube.com/watch?v=8gV7QO1ZKzI

Although, that skydiver looks like a midget.

poikilotherm said:

35 sq ft apparently.

https://www.youtube.com/watch?v=8gV7QO1ZKzI

3.25 square metres, total cloth area of canopy? That surprises me…

How much weight is the parachute holding and how fast do you want it to drop?

Check the Parachute Calculator for required area.

http://www.theage.com.au/technology/sci-tech/sites-of-life-in-the-worlds-mysterious-deep-oceans-revealed-20160512-got9×0.html

Still, NFI what size pack you’d need.

Witty Rejoinder said:

http://www.theage.com.au/technology/sci-tech/sites-of-life-in-the-worlds-mysterious-deep-oceans-revealed-20160512-got9×0.html

Opps sorry.

poikilotherm said:

Still, NFI what size pack you’d need.

Scrunch up a fine silk bed sheet. Doesn’t take up much room at all.

Rule 303 said:

poikilotherm said:

Still, NFI what size pack you’d need.

Scrunch up a fine silk bed sheet. Doesn’t take up much room at all.

That’s why they use silk maps, durable and can be folded small.

Rule 303 said:

poikilotherm said:

Still, NFI what size pack you’d need.

Scrunch up a fine silk bed sheet. Doesn’t take up much room at all.

That’s not really a size now is it.

Rule 303 said:

poikilotherm said:

35 sq ft apparently.

https://www.youtube.com/watch?v=8gV7QO1ZKzI

3.25 square metres, total cloth area of canopy? That surprises me…

Well that was a record and the dude was a stuntman.

dv said:

What would be the size of the smallest pack that could contain a parachute an averaged sized person could use safely?

Ooh. As a person who has designed parachutes for small objects I have to say that that is not an easy question.

I’ve already figured out by personal testing and talking to others that the parachute size calculator on the web mentioned above is totally hopeless, it gives a parachute size that is very much too large.

A wingsuit
“A typical skydiver’s terminal velocity in belly to earth orientation ranges from 180–225 km/h (110 to 140 mph). A wingsuit can reduce these speeds dramatically. A vertical instantaneous velocity of 40 km/h (25 mph) has been recorded.”
The area of a wingsuit is about 3 square metres.

On a specially prepared soft surface, a wingsuit can be landed without an extra parachute, as in https://www.youtube.com/watch?v=dRB-woVjlFY

Comments:
1. Landing on water would be easier than on the ground.
2. The landing of a small (steerable) parachute is done by sweeping the ground and then rising to kill forward speed before finally landing.

mollwollfumble said:

dv said:

What would be the size of the smallest pack that could contain a parachute an averaged sized person could use safely?

Ooh. As a person who has designed parachutes for small objects I have to say that that is not an easy question.

I’ve already figured out by personal testing and talking to others that the parachute size calculator on the web mentioned above is totally hopeless, it gives a parachute size that is very much too large.

A wingsuit
“A typical skydiver’s terminal velocity in belly to earth orientation ranges from 180–225 km/h (110 to 140 mph). A wingsuit can reduce these speeds dramatically. A vertical instantaneous velocity of 40 km/h (25 mph) has been recorded.”
The area of a wingsuit is about 3 square metres.

On a specially prepared soft surface, a wingsuit can be landed without an extra parachute, as in https://www.youtube.com/watch?v=dRB-woVjlFY

Comments:
1. Landing on water would be easier than on the ground.
2. The landing of a small (steerable) parachute is done by sweeping the ground and then rising to kill forward speed before finally landing.

Note that the question is about how big the pack is, not about how many square metres the chute is.