Academics
Category H: Learning and Performance Objectives
- diver exit
- diving
- breakoff
- front riser control
- water landing review
- owner maintenance of gear
- aircraft radio requirements
- FAA notification requirements for jumping
- FAA approvals for jump planes
A. Exit & Freefall
- Diver exit
- Twist out the door to place your hips and chest into the air coming from ahead of the aircraft, with your body oriented side-to-earth.
- Exit in a slow-fall position to arrest your forward throw from the aircraft, which is moving you away from your coach.
- Before starting to dive, hold the slow-fall position for two to three seconds while slowly turning toward your coach.
- Use a delta position to begin diving toward your coach.
- Using your spine to adjust dive angle
- Initiate the dive with your legs fully extended.
- Follow the person ahead closely, but be prepared to slow rapidly.
- Pitch up or down by curving your spine to increase or flatten the angle of the dive.
- Use fast- and slow-fall technique to adjust vertical position relative to the diver ahead.
- For safety and to prevent a collision, dive with an escape path in mind.
- Traffic on approach to the formation
- Dive in a straight line.
- Prevent collisions by watching for other jumpers while on approach to the formation.
- Start, coast and stop
- Once you are about halfway to the target, return to a more neutral position.
- You can increase your speed to the target if you find you have slowed too soon.
- Use a flare position (arms forward) to slow and stop at a position level and 10-20 feet away from the target; visual cues:
- back pack in view: approaching too high
- front of harness in view: approaching too low
- Begin a level approach using legs only.
- Remain aware of traffic to each side and for errant jumpers below the approach path.
- Rapidly arresting forward movement (very effective):
- Extend both arms forward.
- Use slow-fall technique (cup sternum and abdomen).
- Drop both knees.
- Breaking off and tracking
- Plan break-off altitude high enough for the jumper with the least experience to track to a safe distance from the formation, at least 100 feet for groups of five or fewer (minimum distance required for A-license check dive).
- breakoff
- The minimum breakoff altitude recommendations contained in the section on Group Freefall in this manual apply to very experienced formation skydivers jumping at a familiar location, using familiar equipment, and jumping with familiar people.
- If any of these conditions are not met, add 500-1,000 feet to your planned breakoff.
- Develop techniques to scan and steer clear of other jumpers ahead and below.
- Look sideways and above for other jumpers in the immediate area during wave-off and deployment so you can steer clear under canopy as soon as you open.
B. Canopy
- Using front risers
- Front risers may be used to dive the canopy:
- Applying half brakes for several seconds immediately before starting these maneuvers will reduce riser pressure
- to lose altitude rapidly
- to maintain position over ground in strong winds
- Heading control with front risers depends on
- airspeed
- the rate of turn
- the speed of turn entry
- Heading control with front risers takes practice to become predictable.
- Practice heading control with front-risers.
- Pull both front risers down to dive straight ahead.
- Pull one front riser to complete two 90-degree and two 180-degree turns.
- Initiate a sharp, deep front-riser turn, raise the riser slightly to decrease the turn rate, and then pull the riser fully down again to attempt to increase the rate of the turn.
- The rate of turn may not increase.
- The resistance on the riser may make it too difficult to pull the riser down farther after raising it.
- This exercise demonstrates the different nature of front-riser heading control.
- Complete all front-riser maneuvers by 2,000 feet.
- Front-riser safety
- Watch for traffic below and to the sides prior to initiating a front-riser dive.
- Front riser maneuvers can be very dangerous near the ground:
- Turbulence may affect canopy heading or descent rate.
- A mishandled front-riser turn can lead to an undesirable heading, e.g., towards an obstacle, without time to complete the turn safely before landing.
- A crowded landing pattern is never the place for high-speed maneuvers.
- Keep both steering toggles in hand when performing front-riser maneuvers to make heading changes more reliably and quickly if necessary.
- Accuracy: perform the remaining unassisted landings within 65 feet of the planned target to meet the USPA A-license requirements (five total required).
C. Emergency Procedure Review
- Flotation devices for water landings—
- water is an obstacle as defined in the BSRs (section 2-1 in this manual)
- are required for some jumpers; refer to the BSRs on Parachute Equipment
- are recommended for jumpers using ram-airs when jumping within a mile of water
- Adjust the planned spot to avoid bodies of water.
- Procedures for an unintentional water landing (see Section 5-1 in this manual)
- Recovery from a turn made too low over or to avoid water (see Section 5-1 in this manual)
D. Equipment
Note: An FAA rigger or instructor should teach this section.
- Owner maintenance of three-ring release system:
- Disassemble the system every month to clean the cable and massage the ends of the risers.
- Nylon riser webbing develops a memory, especially when dirty.
- When disassembled, twist and massage the nylon webbing around the two riser rings.
- Clean the cables.
- Most three-ring release cables develop a sludge-like coating that causes them to bind, increasing the required pull force.
- Refer to the manufacturer’s instructions for cleaning.
- Use the correct bands for each type of lines:
- Smaller lines require the smaller bands.
- Larger bands may be required for larger lines.
- Line stow bands should grasp the line stow bights tightly, resulting in six to 11 pounds of force to extract.
- Replace each stow band as it stretches, wears, or breaks.
- Main closing loop
- Damage greater than ten percent warrants replacement.
- tension
- Tension must be sufficient to keep the container closed in freefall.
- The closing pin should require eight to 11 pounds to extract (or check owner’s manual).
- A loose closing loop could result in a premature deployment.
- Freeflying maneuvers increase the importance of closing system security.
- Adjust the closing loop tension by moving the overhand knot or replacing the loop with the knot tied in the correct place.
- Use only closing loop material approved by the harness and container manufacturer.
E. Rules & Recommendations
- Refer to “Book Stuff” at the beginning of this category for independent study passages.
- Review all “Book Stuff” from other categories to study for the oral exam given with the A-license check dive.
F. Spotting & Aircraft
Note: An FAA-rated pilot or instructor should teach this section.
- Overview of aircraft radio use requirements
- The jump aircraft must have an operating radio for jumping to take place.
- The pilot must be in contact with air traffic control prior to jumping.
- Skim the FAA’s requirements for radio use in FAR 105.
- FAA notification required before a jump
- A jumper or the pilot must notify the appropriate air traffic control facility at least one hour prior to jumping (no more than 24 hours prior) in most airspace.
- Some drop zones have a written notification renewed annually for that location only.
- Skim FAR 105.25 for rules on notifications and authorizations prior to jumping.
- Study the overview of notification and authorization requirements contained in AC 105-2, Appendix 1.
- Aircraft approved for flight with door removed
- Some aircraft are unsafe for flight with the door open or removed.
- Aircraft approved for flight with the door removed may require additional modifications and usually require additional FAA field approval.
- Other modifications to a jump aircraft, e.g., in-flight doors, hand holds, or steps, require additional field approval or a supplementary type certificate.
- Review with the pilot the certificates of approval for modifications on the jump aircraft.