HARD (Direction)

• High-G, energy-sustaining turn.

HEAD/ HEAD ON

• 1. (USAF) Target with an aspect of 160 to 180 degrees.
• 2. (Naval) Target with an aspect of 0 to 20 degrees.

HEADS UP

• Alert of an activity of interest.

HEAVY*

• A group or package known to contain three or more entities.

HIGH*

• Between 25,000 and 40,000 feet mean sea level (MSL).

HIT (S)

• 1. Air-to-air (A/ A) Momentary radar returns search. (Indicates approximate altitude information from fighter.)
• 2. Air-to-ground (A/ G) Weapons impact within lethal distance.

HOLD DOWN

• Directive to key transmitter for direction-finding (DF) steer.

HOLDING HANDS

• Aircraft in visual formation.

HOLD FIRE

• An emergency fire control order used to stop firing on a designated target, to include destruction of any missiles in flight.

HOME PLATE

• Home airfield or carrier.

HOOK (Left/ Right)

• Directive to perform an in-place 180-degree turn.

HOSTILE*

• A contact identified as enemy upon which clearance to fire is authorized in accordance with theater rules of engagement.

HOT

• 1. Attack geometry will result in rollout in front of the target.
• 2. On a leg of the CAP pointing toward the anticipated threats.
• 3. Group heading towards friendly aircraft; opposite of COLD.
• 4. Ordnance employment intended or completed.

HOTDOG

• Informative/ directive call that an aircraft is approaching or at a specified standoff distance from the sovereign airspace of a nation (as defined by national boundaries or territorial sea and airspace). (COLOR may indicate additional standoff distance.) Follow briefed procedures.

HOTEL FOX

• High frequency (HF) radio.

HUSKY (Naval)

• Air Intercept Missile (AIM)-120 supported to HPRF active range; same as USAF CHEAPSHOT.