TM 10-1670-327-23&P
0002 00
UNIVERSAL STATIC LINE SNAP HOOK (1)
Material........................................................................................................................ Chromium molydenum
Length ................................................................................................................................................6 inches
LOCATION AND DESCRIPTION OF MAJOR COMPONENTS FOR THE MC-6 PERSONNEL
PARACHUTE SYSTEM
Main Canopy. The MC-6 Main Canopy (figure 1, item 1) has a 32 foot (nominal diameter), is
polyconical-shaped, and block constructed of 1.1-ounce zero porosity nylon parachute cloth. Depending
on the jumper's total weight and drop altitude, its rate of decent is between 14.5 to 18.5 feet per second.
The canopy has a forward speed of 10 knots, and can complete a 360 in 5 seconds. The canopy is
described as follows:
1. The canopy consists of 28 gores (figure 1, item 2) as follows:
a. Four sections per gore with the exception of the four extended gores, which consist of seven
horizontal and two vertical sections.
b. Four extended gores are located on gores 4-5, 6-7, 21-22,and 23-24 (figure 1, item 3). When the
jumper pulls either the left or right control line toggle it closes the extended gores, which re-directs
the airflow through the opposite extended gores which provides an increased turning capability. A
break slot (figure 1, item 4), reduces forward speed. In full brakes, the canopy can go backwards.
The extended gores also facilitate the canopy's ability to perform flat turns by venting air in the
opposite direction.
c.
Six opening vents located on the front canopy gores 9,11,13,15,17,and 19 (figure 1, item 5)
prevent the front of the canopy from collapsing, improving the forward drive and stability of the
canopy.
d. Three drive vents located on rear of the canopy (figure 1, item 6) with mesh netting sewn into
gores 2, 26, and 28, allow for positive airflow through the canopy, which provides the canopy with
its forward drive.
e. Radial seam (figure 1, item 7) runs from the lower skirt to the upper apex and is made using a
1/2-inch wide Type III, nylon tape.
f.
The skirt hem is the folded-over lower edge of the canopy, encompassing the skirt band (figure 1,
item 8) (sometimes called the lower lateral band).
2. There are 28 Suspension lines (figure 1, item 9) which are 21-feet in length made with Type III nylon
cord and are connected from the suspension line attaching loops on the anti-inversion netting (figure
1, item 10) to the connector links (figure 1, item 11).
a. Two lower control lines run from the risers to the attachment point on the middle control lines. The
middle control lines attach to the upper control lines, lower control lines, and skirt. Upper control
lines attach to the extended gores and middle control lines, providing the canopy with increased
response from jumpers actions.
b. Fourteen apex vent lines run continuous from one end of the vent band to the opposite side of the
vent band and are constructed of Type III nylon cord.
0002 00-4
