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.Kaiser, John W.: How to Fly Book - Cessna 150, page 37. Victoria Flying Club, 1977.
The HASEL acronym stands for: Height Area Security Engine Lookout
or alternatively:CAA NZ Flight Instructor Guide: Basic Stalling Retrieved 14 December 2011Jeremy M. Pratt: PPL Volume 1, Flying Training Height Airframe Security Engine Location Lookout
HASELL 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
References