Sigma Tandem Factoids

Question 1

Normal drogue fall terminal velocity is?

Answer 1

120mph / 200kmh

Question 2

Tandem freefall terminal velocity is?

Answer 2

170mph / 270kmh

Question 3

It takes _____ seconds to fall 1,000 feet at terminal velocity with a drogue

Answer 3

6 seconds

Question 4

It takes _____ seconds to fall 1,000 feet at terminal velocity without a drogue?

Answer 4

4 seconds

Question 5

If a drogue is deployed after 20 seconds of tandem freefall, how long will it take to slow the tandem down to 120 mph?

Answer 5

10 seconds or 2000’

Question 6

A packed Sigma tandem system and student harness weighs approximately?

Answer 6

50 lbs

Question 7

A packed Micro Sigma tandem system and student harness weighs approximately?

Answer 7

48 lbs

Question 8

Maximum suspended weight for the Sigma or Micro Sigma Tandem system is?

Answer 8

500 lbs (gear + instructor + student)

Question 9

How long should the trap door effect be?

Answer 9

3/4 of a second

Question 10

What problem is caused by a kill line that is too short?

Answer 10

Longer than normal trap door effect.

Question 11

What problem is caused by a kill line that is too long?

Answer 11

Higher snatch force, hard opening.

Question 12

How can you tell if a drogue was cocked during packing?

Answer 12

Bridle scrunched and kill line window color.

Question 13

What might happen if you deploy a which had not been cocked properly during packing?

Answer 13

Terminal velocity increases. Drogue should inflate within 6-8 seconds.

Question 14

What happens if the screw in the drogue disc is missing or loose?

Answer 14

A loose screw could damage or snag the container-closing loop. A missing pin might cause the disk to become loose on the drogue bridle possibly causing a collapsed drogue in tow malfunction and bag lock.

Question 15

What length should the exposed kill line be above the grommet at the base of the drogue envelope be?

Answer 15

1.5”-5” for a 54” drogue