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AIRBORN GUIDANCE UNIT (AGU)

Precision Airdrop

Since 1997, Wamore has successfully developed several airdrop systems under contract to U.S. Army Soldier Systems Center (Natick).  Our first objective was to improve the survivability of cargo delivered by round parachutes.  Airbag systems to replace paper honeycomb were successfully demonstrated for high-value vehicles such as the M997 Ambulance.  In 2001, Wamore became convinced that retraction technology was superior to airbags, and developed STARRDAS (Soft Touchdown And Rapid Rigging Derigging Airdrop System).  STARRDAS achieved soft landing of 5-ton and 7.5-ton cargo by vigorously retracting the cargo slings just before touchdown. A closed-loop control system modulated the power applied to the retractor, achieving 8 ft/sec landings despite variations in airdrop conditions and uneven terrain during airdrops at YPG.  More details about Wamore soft-landing systems may be found in the Proceedings of the 16th and 17th AIAA Aerodynamic Decelerator Systems Technology Conference.

Since 2003, Wamore has focused on precision guidance and landing of parafoils.  Two generations of the Dragonfly 10K AGU and a subscale 30K AGU have been developed and tested under contract to Natick.  Wamore also partnered with Para-Flite, Inc. to develop the Firefly 2K and more recently the Microfly .5k, both complete precision airdrop systems available as a Commercial-Off-The-Shelf (COTS) items.  Wamore AGU standard characteristics include light weight, high power, high strength, reliability & low cost.  The AGUs also provide internal volume and electrical power for other electronics and sensor packages that may require testing.

 

Microfly .5k

Firefly 2K

Dragonfly 10K

 

Precision Airdrop Technology Conference and Demonstration: October 2005, Yuma, AZ

PATCAD 2005 Results

Wamore AGUs flew 8 airdrops at PATCAD, 4 Dragonfly & 4 Firefly.  All performed flawlessly as expected.  The results of the four Dragonfly airdrops are detailed in the following graph (only the final approach flight path is shown for clarity).  Both systems execute a flare maneuver at landing, significantly reducing both Vertical and Horizontal speed.  Dragonfly averages 12 ft/s descent rate and 45 ft/s horizontal speed and Firefly averages <10 ft/s descent rate and <25 ft/s horizontal speed during landing. 

Dragonfly 10K

Drop #

Date

Weight, lb

Miss Distance, m

L-046

10/19/05

8,750

211

L-047

10/19/05

8,700

95

L-048

10/20/05

8,700

85

L-049

10/20/05

9,300

152

Firefly 2K

1

10/19/05

2,200

26

2

10/19/05

1,700

60

3

10/20/05

2,200

300

4

10/20/05

1,700

350

 

Future 2 Years

Wamore will be providing additional AGUs and test support to Natick including the development of 30,000-lb parafoil systems. 

Wamore is continuing to partner with Para-Flite, Inc to enhance Microfly .5K, Firefly 2K and Dragonfly 10K, in preparation for production.  Important new features are AGU-controlled drogue transfer and D-brake release to avoid consumable cutters and to reduce rigging time.

 

 

Directions

Wamore Shipping and Mailing Addresses:

1616 Iron Springs Road                                                   22601 N 17th Ave #170

Prescott, Arizona  86305                                              Phoenix, Arizona  85027

Phone (928) 541-1950  Fax (928) 717-2426             Phone (623) 582-8448