- Joined
- Oct 24, 2006
- Messages
- 2,766
http://www.airborne-sys.com/pdfs/T-11ATPS.pdf
ATPS MAIN PARACHUTE SYSTEM
The ATPS operates in a combat environment of 500 feet (+/-125 feet) AGL minimum planned
altitude, deployed from aircraft traveling at speeds of 130-150 Knots Indicated Airspeed (KIAS). The
Rate-of-Descent at 375 ft. (115 m.) below the aircraft has been reduced to 18 ft/sec (4.48 m/sec) for a
jumper with an All Up Weight (AUW) of 382 lbs. (173.2 kg.), compared to the T-10 at 21 ft/sec (6.40
m/sec.).
The ATPS harness includes main and reserve attachments, which align the parachute opening
forces along the long axis of the jumper’s body thereby reducing spinal injuries. In comparison with
the T-10, this system has a 25% reduced rate-of-descent which will result in a 40% reduction in
impact energy causing significantly fewer landing injuries. The ATPS main parachute deployment
system is a unique, drogue/sleeve deployment method (developed in-house).
MAIN PARACHUTE SUB-SYSTEM
The ATPS main parachute is a highly modified and refined version of the cross/cruciform planform
parachute. The ATPS main parachute exploits two of the most important characteristics of cross
parachutes: inherent stability and inherent gentle opening.
However, it differs from the conventional cross as follows:
Significantly lower aspect ratio
Significantly shorter suspension lines
Materials
The main characteristics of the ATPS Main Parachute are:
SPECIFICATIONS:
Part Number : 990109-0
System Assembly Weight : 50 lb (22.7 kg)
All Up Weight (AUW) : 382 lb (173.2 kg)
Rate of Descent : 18 fps (382 lb AUW)
Minimum Deployment Altitude : 500 ft (152.4 meters)
Maximum Deployment Speed : 150 knots
ATPS MAIN PARACHUTE SYSTEM
The ATPS operates in a combat environment of 500 feet (+/-125 feet) AGL minimum planned
altitude, deployed from aircraft traveling at speeds of 130-150 Knots Indicated Airspeed (KIAS). The
Rate-of-Descent at 375 ft. (115 m.) below the aircraft has been reduced to 18 ft/sec (4.48 m/sec) for a
jumper with an All Up Weight (AUW) of 382 lbs. (173.2 kg.), compared to the T-10 at 21 ft/sec (6.40
m/sec.).
The ATPS harness includes main and reserve attachments, which align the parachute opening
forces along the long axis of the jumper’s body thereby reducing spinal injuries. In comparison with
the T-10, this system has a 25% reduced rate-of-descent which will result in a 40% reduction in
impact energy causing significantly fewer landing injuries. The ATPS main parachute deployment
system is a unique, drogue/sleeve deployment method (developed in-house).
MAIN PARACHUTE SUB-SYSTEM
The ATPS main parachute is a highly modified and refined version of the cross/cruciform planform
parachute. The ATPS main parachute exploits two of the most important characteristics of cross
parachutes: inherent stability and inherent gentle opening.
However, it differs from the conventional cross as follows:
Significantly lower aspect ratio
Significantly shorter suspension lines
Materials
The main characteristics of the ATPS Main Parachute are:
SPECIFICATIONS:
Part Number : 990109-0
System Assembly Weight : 50 lb (22.7 kg)
All Up Weight (AUW) : 382 lb (173.2 kg)
Rate of Descent : 18 fps (382 lb AUW)
Minimum Deployment Altitude : 500 ft (152.4 meters)
Maximum Deployment Speed : 150 knots
