In freefall, no one can hear you scream. The roar of the wind at 120 miles per hour makes verbal communication impossible, and the distance between skydivers can make visual signals difficult to discern. Yet coordination between skydivers — in formation flying, in AFF training, in camera work — requires communication. The solution is a standardized system of hand signals developed over decades of the sport's evolution, a universal language that every skydiver learns during initial training and refines throughout their career.
The Standard USPA Hand Signal Set
The United States Parachute Association has standardized a set of hand signals that is recognized at drop zones worldwide, though there are some regional and discipline-specific variations. These signals cover the most common communications needed during AFF training and recreational skydiving. Understanding and using these signals correctly is part of what it means to be a competent skydiver.
The most fundamental signal is the "thumbs up" or "okay" signal — a closed fist with thumb raised, meaning "everything is fine, proceed as planned." This is the universal affirmative in skydiving communication. Its opposite is the "open palm" signal — an open hand held flat with fingers together, facing the recipient, meaning "stop" or "hold." This signal is used to halt any action that is in progress.
The "check altimeter" signal is given by touching the altimeter on the wrist and then pointing at the ground, communicating that the recipient should check their altitude. This is one of the most frequently used signals in AFF training, where instructors use it to prompt students to demonstrate altitude awareness.
Altitude Signals
Altitude signals communicate specific altitude thresholds to other skydivers. These are used by spotters in the aircraft, by formation organizers during group jumps, and by AFF instructors during training. The "waves off" signal — both arms waving overhead — is the universal signal for all jumpers to prepare for exit. This is typically given as the aircraft approaches the drop zone or as it reaches jump altitude.
During freefall, specific altitude calls are communicated using a combination of hand signals and, in equipped groups, radio communication. Common altitude call signals include holding up fingers to indicate thousands of feet, pointing at the altimeter, and then pointing in the direction of the relevant reference. At 5,500 feet — standard deployment altitude — the signal is a flat hand moved across the throat in a cutting motion, meaning "deploy now."
The "pull" signal — reaching toward the pilot chute handle or making a pulling motion — indicates that the recipient should initiate deployment. This signal is given when the recipient has reached the designated deployment altitude but may not have recognized it on their own altimeter. If an instructor gives the pull signal, the student should deploy immediately.
Formation and Relative Flight Signals
In formation skydiving and group freefall activities, a set of signals is used to coordinate the formation's movement, approach sequences, and break-off timing. These signals are typically given by the formation organizer or designated caller, who is responsible for the overall safety of the group jump.
The "dock" signal — pointing at the target skydiver and then indicating the grip location — tells a flyer to approach and dock with a specific skydiver at a specific grip point. Directional signals — pointing in the desired direction of movement — communicate where the formation organizer wants the group to move relative to the ground track or relative to each other.
Altitude adjustment signals are used to coordinate the vertical positions of formation flyers. An upward-palm wave means "climb" — the recipient should assume a lower-drag body position to reduce their descent rate and move up relative to the formation. A downward-palm wave means "descend" — the recipient should assume a higher-drag position to increase descent rate and move down.
Emergency Signals
Emergency signals are the most critical hand signals in skydiving because they communicate imminent danger and initiate emergency procedures. These signals must be recognized instantly, without conscious thought, because they indicate situations where delay is dangerous.
The "cut away" signal — a chopping motion across the throat with one hand while the other hand reaches toward the cutaway handle — means "cut away your main canopy and deploy your reserve." This signal is given by an instructor or spotter who has observed a malfunction that cannot be resolved in freefall. Upon seeing this signal, the recipient should immediately execute the cutaway procedure.
The "break off" signal — both arms making a sweeping motion outward from the center of the body — indicates that all skydivers should immediately release their grips on any formation, separate from each other, and proceed individually to deployment. This signal is given at the designated break-off altitude to prevent collisions during the deployment phase of a group jump.
Developing Signal Recognition Under Stress
Hand signals are only useful if they are recognized and responded to correctly. This requires more than just knowing what each signal means — it requires developing the automatic recognition response that allows you to see a signal and respond correctly even under the extreme stress of an actual emergency.
Practice signal recognition during every training jump. When your instructor gives a signal, respond to it immediately and correctly. When watching other skydivers use signals, mentally identify the signal and predict its meaning. This constant reinforcement builds the recognition response that will serve you in actual situations.
When participating in group jumps with unfamiliar skydivers, confirm the signals that will be used before boarding the aircraft. While the standard USPA signals are widely recognized, some groups use discipline-specific signals or variations. Establishing a common signal vocabulary before the jump eliminates the risk of miscommunication in the air.