[sci.military] Chicken Gun

MLONG%UCONNVM.BITNET@YALEVM.YCC.Yale.Edu (MELONG) (03/15/91)

From:         MELONG <MLONG%UCONNVM.BITNET@YALEVM.YCC.Yale.Edu>
At Pratt & Whitney we used a chicken ingestion test in the test cells to
determine the effects of bird strikes/ingestions. The jet engines were
brought up to speed and a frozen ( animal rights against using live) chicken
was "shot" into the engine and the effects then monitored. This aids in the
design of fan blades that will spin foreign objects out into the area of
high bypass and not into the compressor section of the engine.
FAA also has blade containment specs that must be tested for and met. After
the ingestion takes place IF fan/compressor blades are released, the parts
must be contained within the casing/nacelle.
MLONG@UCONNVM

jackson@cpsc.ucalgary.ca (03/28/91)

From: jackson@cpsc.ucalgary.ca

Continuing the 'Chicken Gun' thread...

About 10 years or so ago, 60 Minutes had a segment describing this very
thing, calling it the chicken cannon or chicken gun.  They showed many
slo-mo shots of birds going thru the windscreens of civilian and
military aircraft.

They also had an interview with a pilot (of a F111 I believe) who had
survived a Canadian Goose strike.  The thing entered the left side of
the windscreen, went thru the HUD (?), and carried on thru his shoulder
on into the back of the aircraft.  The pictures of his injuries were
unbelievable...it had taken out his collarbone and part of his shoulder
socket.  After years of rehab it still looked terrible!

By the by...the pet name for the cannon as called by the techs who fire
it was the... "Rooster Booster" (no kidding!)

Dwight Jackson
(U of C)