MC-1D Paratrooper Parachute

MC-1D Paratrooper Parachute
The MC1-1C steerable paratrooper parachute was designed by the U.S. Army in 1988 based on the MC1-1B canopy. It is primarily used in pre-planned parachute jumps requiring precise soft landings in small target areas.

MC1-1C/D Characteristics
Shape: Parabolic
Diameter: 35 feet (10.7 meters)
Canopy material: 1.1-ounce, Type I low-porosity tear-resistant nylon fabric
Vent cord material: Type II nylon rope
Number of suspension lines: 30
Suspension line material: Type II nylon rope
Suspension line length (from connector link to lower webbing): 6.7 meters
Maximum weight capacity: 163 kg
Complete assembly weight: 13 kg
Maneuverability: Yes
Maximum jump wind speed: 15 mph (13 knots)
Descent speed (sea level): Average 18 ft/s (5.5 m/s)
Minimum opening altitude: 500 feet (152 meters)
Maximum opening speed: 173 mph (150 knots)
360-degree turn: 8-9 seconds
Forward thrust: 9.5 mph (8 knots)
Service life: 16.5 years
Operational life: 12 years

MC-1C Accessory Numbers (NSN)
NSN: 1670-01-262-2359
P/N: 11-1-900-2
Canopy: 11-1-1501-3
Pack: 62J4342
D-Bag: 56D6276
Static Line: 55D6481
Harness: 11-1-2143-1
Riser: 11-1-2149-1

MC-1D Accessory Numbers (NSN)
NSN: 1670-01-487-0777
P/N: 11-1-900-3
Canopy: 11-1-1501-3
Pack: 62J4342
D-Bag: 11-1-6994-1
Harness: 11-1-2143-1
Riser: 11-1-2149-1
Static Line
U/N 15′: 11-1-6993-1
U/N 5′ Ext: 11-1-6993-2
With Snap: 11-1-6991-1

Differences Between Models
MC1-1C: Standard configuration, using low-porosity canopy fabric PIA-C-44378.
MC1-1D: Equipped with a new universal static line with static line snaps.

Additional Information
The basic canopy of existing models is the same as the MC1-1B but includes drawing changes from 1993, 1995, and 1996, as follows:

· The fabric was changed to 0.5-5.0 CFM porosity.

· The old 11-orifice design was modified to 17 orifices in 11 of the 30 canopy seams; Seams 4 and 26 each have 3 openings.

· Orifices on Seams 4 and 26 were reinforced with transverse tape between the upper edge of large orifices and the lower edge of new small openings.

· Shorter 22-foot suspension lines on the back canopy ropes are arranged 8 per rope instead of the previous 7.

· Shorter 25-foot control ropes are used.

· 11-3/4-inch bag straps are used instead of the old 8-3/4-inch ones.

· All materials are in the new U.S. Army Color 504 (foliage green).

· Zigzag reinforcing stitches (approximately 30 inches of suspension line) were added to main seams 6 to 25 (orifice areas only).

· The cut length of radial webbing is now shortened by 2-1/4 inches (17 feet) to ensure fabric fullness along the length of main seams.

· Reinforcement straps were added under each tie line inside the canopy—Main Seams 5 & 6; 25 & 26.

· Zigzag reinforcing stitches on designated main seams provide greater tear resistance.

These changes created a fast-opening canopy with a descent speed of approximately 4 to 5 feet per second and enhanced maneuverability (forward drive).