What does HASEL mean in Engineering?

Hasel

In aviation, in Australia, Canada, New Zealand, South Africa, the United Kingdom and elsewhere, HASELL or alternatively HASEL, is a standard mnemonic to prompt a series of checks prior to carrying out many types of manoeuvres, such as stalls, spins, spiral dives or aerobatics.The HASEL acronym stands for: Height Area Security Engine Lookoutor alternatively: Height Airframe Security Engine Location LookoutHASELL is often abbreviated to HELL for any subsequent manoeuvres. The Area or Location check can be broken down into the following checks with the mnemonic ABCCD: Active airfields Built up areas Cloud Controlled airspace Danger areas

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