Accident Prevention Program – Single-engine vs Twins

Always Leave Yourself an Out

While single-engine aircraft may not be safer, twins can be more dangerous/Richard N. Aarons

DESPITE heated scoldings from flight instructors and grim warnings from the National Transportation Safety Board, many pilots still seem to believe that implied in the fact that an aircraft has two engines is a promise that it will perform with only one of those engines operative. And the light-twin stall/spin accident rate further indicates that many multi-engine pilots have not come to grips with the facts that:

  • Significantly more than half the climb performance disappears when one engine signs out
  • Exploration of the Vmc regime close to the ground is a sure way to kill yourself.

A while back, the NTSB reported that light multi-engine aircraft are involved in fewer engine-failure-related accidents than single-engine aircraft. However the same report observed that an engine-failure-related accident in a twin is four times more likely to cause serious or fatal injuries. An analysis of that report appeared in the June issue of B/CA (Cause and Circumstance).

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Wombats….(and i’m not talking about the band!)

dsc_4642.jpgyes..very noisy at night…blind as a bat but can hear exceptionally well!

Wombats are stout, sturdy marsupials. They grow to about 1.3 metres in length, and can weigh up to 36 kg. They have a large, blunt head with small eyes and ears, and a short, muscular neck. Their sharp claws and stubby, powerful legs make them great diggers. Wombats have been known to live for up to 27 years in captivity.

dsc_4638.jpgTwo of the three species of wombat occur in NSW:

  • The common wombat, most widespread of the two, has a large, naked snout covered in grainy skin.
  • The much rarer southern hairy-nosed wombat has larger ears than the common wombat, and its snout is coated with fine hairs.

The northern hairy-nosed wombat is presumed extinct in NSW.