Head-Down 303 — Fly the diving slot on a head-down big-way

Application

Covers one job on a head-down big-way: the diver slot. You exit in stack order, dive to a point beside and below the formation, arrest, then approach and dock. A diver arrives from above, where floaters are told not to go, so the diving slot carries its own discipline, stop beside and below, never drive over the top.

The big-way is built and run by an organiser (FFP-HD401); this card is what a diver does inside it. Assumes FFP-HD301 and the float sight-picture rules in FFP-HD302 (the inverse-stadium approach is shared, not repeated). Sky only; the tunnel covers dock mechanics alone.

Pre-requisite units

FFP-HD301 and FFP-HD302 (the float slot and the inverse-stadium and overfloating doctrine this card builds on). RPL route: logbook evidence of diver approaches on organised head-down big-ways plus one challenge jump against this card’s criteria.

Why lighter flyers dive: stopping range

Divers are usually the lighter, nimbler flyers. The reason is stopping range, not closing ability.

Gravity supplies a diver’s closure regardless of mass, so a light flyer has all the closing speed they need. Lower mass buys the ability to arrest the dive and hold at the base without overshooting or sinking low. That stopping range makes a light flyer the right diver.

A heavy flyer’s cautious, slow closing speed is a symptom of short stopping range, not the cause, which is why heavy flyers go on the floats of a fast base and the smaller, nimbler flyers exit the confined stack and dive.

Both failure modes follow:

• A light diver outrun by a fast base dives steeper, more “out”, more vertical speed, not longer and flatter. Flattening trades away the stopping range that made them the right diver.
• A heavy diver who cannot arrest overshoots or drives over the top into the far side’s airspace. If you find yourself there mid-approach, set up a safe, low, deconflicted deployment rather than chase a dock you cannot stop on.

Elements and performance criteria

1. Plan the jump

1.1

State own diver slot, dive order, approach lane and grips from the organiser's brief.

1.2

Confirm own position in the staggered stack.

1.3

Confirm own currency and qualifications against the organiser's entry criteria and the local gates.

1.4

State own breakoff wave, altitude, radial and deployment altitude (the organiser owns the breakoff design, see FFP-HD401).

2. Prepare

2.1

Complete a freefly-specific gear check (handles, hand-deploy pouch, riser covers, closing loop, helmet, audible set to own wave and functioning).

2.2

Walk the exit stack in the mock-up (divers staggered down the aisle).

2.3

Dirt-dive own exit rotation, dive line, dock and breakoff radial at least twice.

3. Perform

3.1

Exit from the staggered stack on the briefed count, rotating out facing the prop, without contacting the aircraft or another jumper.

3.2

Establish the post-exit picture head-down, high and up jump run of the base, wind on the back, eyes on the base.

3.3

Dive to a point to the side of and below the formation, not at it, arresting the dive before the approach.

3.4

Aim a late dive at the front of the formation, never over the top, so any overshoot carries clear of the build rather than into it.

3.5

Fly the inverse-stadium approach from below, arriving at a point below the base with the same grips as a float.

3.6

Make the final move from 2–3 head-levels below, flying the whole body to the grip without reaching.

3.7

Sting, dock or break in with the briefed grips, gentle pressure, without destabilising the formation.

3.8

Adjust own dive line to stay clear of converging diver trajectories while holding the slot.

3.9

Recover or abort on any instability or lost slot, back out below and clear, re-approaching only when stable; never recover over the top.

4. Complete

4.1

Initiate breakoff with own wave at the briefed altitude (within −0/+300 ft), regardless of formation completeness.

4.2

Turn onto the assigned radial and track the fan-out arc, shading away from jump run if briefed.

4.3

Deploy at own wave's briefed altitude after checking airspace (barrel roll only if smooth; if directly above another jumper, deploy rather than out-track).

4.4

Fly the briefed canopy separation and landing order.

5. Review

5.1

Debrief own diver slot against video, classifying each approach as clean, corrected or aborted.

5.2

Identify own dive-line faults (diving at the formation, overshoot, late power-up) and their correction.

5.3

Write the jump up naming the unit and slot (e.g. "HD303, diver slot, wave-1 breakoff"), the results and the next objective.

Bold criteria are safety-critical, strongly recommended must-meet standards within FFP courses, not regulations. A diver who drives over the top or fails to arrest risks the whole formation, so a Not Yet Satisfactory on a bold criterion makes the unit Not Yet Competent.

Foundation skills

Reading the organiser’s dive order and keys. Altitude and separation numeracy across wave altitudes and closing speeds. Setting up a safe deployment rather than chasing a dock you cannot stop on.

Performance evidence (suggested sufficiency — adjust locally)

A guide to how long the diver slot usually takes, not a gate. Around 8 organised head-down big-way jumps flying a diver slot, 6-way or larger, some at 10-way or larger, across at least two events or days, with consecutive jumps meeting all criteria without organiser prompts. Tunnel time evidences dock mechanics but cannot substitute for the group jumps or the dive.

Knowledge evidence

• Explain why lighter flyers make better divers, gravity supplies the closure, and lower mass preserves the stopping range to arrest and hold without overshooting.
• State both diver failure modes: a light diver outrun by a fast base dives steeper, not flatter; a heavy diver who cannot arrest sets up a safe low deployment instead of chasing the dock.
• Explain why a diver dives to a point beside and below the formation, then approaches on the inverse stadium, not at the formation.
• Explain the late-diver rule: aim at the front so an overshoot carries clear, never over the top.
• Describe the deployment airspace check: barrel roll only if smooth, deploy rather than out-track if directly above another jumper.
• Analyse the two case studies below to name each failure mode and the gear item whose absence made an outcome worse.

Case study — the late diver (IMPACT, 2022)

Case for the late-diver rule (criterion 3.4) and the calibration trap. Human review of this content is mandatory before delivery. It is a first-person account of a real collision, not a technical film, use it that way.

On an 18-way sunset angle jump at Skydive Byron Bay (14 January 2021), the leader ran a milder pace than usual to keep a larger, mixed-experience group in slot. A late-exiting diver was calibrated to the fast, steep angle the group normally ran and came in hot. By the time he recognised it and tried to pull out, his knee struck an in-formation jumper, Mark “Lucch” Lucchiari, in the back of the head.

Lucchiari was knocked unconscious and his CYPRES fired at 750 ft; both jumpers survived serious injuries. The failure mode: later exiters carry the most speed-building altitude, “running mild” is invisible from above, and at high closing speed the decision to abort passes in under a second. Prevention beats correction, brief the planned pace explicitly, and aim at the front where an overshoot flies past rather than through.

Documented first-hand in the film IMPACT (dir. Patrick Dunne).

Case study — a carving collision that ended in a C6/C7 fracture

Case for the overshoot/recovery rule (criteria 3.4, 3.9) and the gear check (criterion 2.1). Human review of this content is mandatory before delivery.

On a 9-way head-down carving dive a jumper went low, then floated back up into the formation and collided with it. The impact knocked the jumper unconscious. In the vertical body attitude the leg straps slipped behind the knees; the jumper, unable to deploy, was deployed by the organiser and landed unconscious with a C6/C7 fracture. Two points:

1. The go-low-then-recover-up failure mode is real. This is the sequence the recovery rule prevents (criteria 3.4, 3.9): recover below and clear, never up through a formation’s airspace where incoming divers are.
2. The gear finding is why a leg-strap bungee is a standard freefly check. Leg-strap slippage behind the knees in a vertical, unconscious body attitude removed this jumper’s ability to be safely deployed. An elastic bungee between the leg straps is today a standard freefly gear-check item, the FFP-F100 gear audit lists it. The history is what makes the check land.

Assessment conditions

Sky only, on organised head-down big-way jumps of a recommended 6-way minimum with some evidence at 10-way or larger; a real group is required, no Element 3 or 4 criterion can be evidenced solo or in the tunnel. Exit altitude a recommended 10,000 ft minimum, higher for big-ways.

Video: outside footage is the most valuable diver debrief; where none is practical, organiser observation and other jumpers’ footage can carry the debrief with the candidate identifiable. Equipment: visual altimeter, functioning audible (two recommended, wave-set), AAD highly recommended, freefly-suitable gear.

Assessor: an experienced head-down big-way organiser or freefly coach current in the discipline, using the published FFP-HD303 checklist. Each criterion Satisfactory / Not Yet Satisfactory; unit Competent / Not Yet Competent, recorded as a milestone.

Coaching priorities

Deliver in the project’s priority order: Safety → Fun → Learning (curriculum Part A0). Safety criteria are must-meet, a diver never drives over the top to save a dock, and a broken-off dive or a safe low deployment is debriefed as a correct decision. Debriefs classify approaches without blame and end on a win with one focus for the next jump.

RPL evidence set

For experienced divers the flying is the evidence. A logbook history of organised head-down big-way diver participation; video showing dives stopped beside and below, clean docks, and wave breakoffs on the assigned radial; a word from a recognised organiser. A challenge jump against this checklist with the stopping-range and late-diver knowledge covered in conversation completes the picture.

Sources