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Helicopter Emergency Egress Device (HEED)

Heed device The HEED is a small self-contained breathing tank. It holds about 2 - 5 minutes of breathing air. Training is required to insure:

Reliable use in emergency situation
Conservation of air
Underwater clearing to prevent water ingestion
Realistic use timeline
Limitations of design
Avoiding an aeroembolism

HEED training normally requires 1/2 day of classroom training with 1/2 day pool "work". There are several different "generations" in-use; each with their own characteristics.

NOTE: This device is not mandatory for flight, but the training is required prior to issue or if a HEED is to be carried during a NOAA mission. The required training is waived for those personnel who hold a current PADI open water certification or who have had documented NOAA or Navy Dive Training.

HEED III SPECIFICATIONS
Length	8.75" / 22.23 cm
Diameter	2.25" / 5.71 cm
Weight (full)	1.51 lb / .687 kg
*Air Capacity (Standard model)	1.7 cu ft. / 48 liters
Maximum Pressure	3000 psi / 200 bar
Surface Breaths (approx.) / Time Duration	30 breaths / 2-5 minutes
Cylinder Rating	DOT-3AL 3000 TC-3ALM-207
Refillable	Yes
Mounting/Wearing	Fits into most flight vest pockets, or can be purchased with holsters that can be sewn onto a vest or worn on a belt.
Configuration	Single-stage, demand-breathing regulator attaches directly to an aluminum cylinder.

A publication of Office of Marine and Aviation Operations
National Oceanic and Atmospheric Administration
Direct inquiries and comments to:

Helicopter Emergency Egress Device (HEED)

HEED III SPECIFICATIONS