Bird strike(s)

Jay
Amended response. In my exhburance I meant to say over a hundred bird
strikes...NOT HundredS!
The vast majority of them occured during crop dusting/spraying ops in
both phyxed wing and rotorcraft over the past 40+ years.
Ol Shy & Bashful
p.s. One of the most unusual was a mallard hen that came thru the
bubble into the Hiller I was flying, and continued to fly around in the
cabin!

sfb wrote:

Right, there are guys with dogs that given permission of the state will
harass the geese until they leave.

Border collies do the best job of this, once you convince them that that's what
they're supposed to do.

George Patterson
Drink is the curse of the land. It makes you quarrel with your neighbor.
It makes you shoot at your landlord. And it makes you miss him.

"Gary Drescher" wrote:
Assuming the same compressibility, the forces of the two collisions
would be proportionate to the colliding objects' respective momenta.
After dropping ten feet, an object has a velocity of about 15 knots;
hence, a 1000-pound weight has a momentum of 15,000 knot-pounds. A
Canada Goose weighs up to 14 pounds; hence, at (say) 120 knots, its
momentum is at most 1,680 knot-pounds--about an order of magnitude
less than what's asserted above. If the 1000-pound weight is harder
(less compressible) than the goose, then the asserted comparison is
wrong by an even greater factor.

The goose and falling weight do, however, strike with comparable kinetic
energies:

E_goose = 0.5*14*120*120
= 100,800

E_wt = 0.5*1000*15*15
= 112,500

So maybe this is why Sport Aviation claims the strikes are comparable. If I
recall correctly, damage is roughly proportional to energy of impact, not
momentum. (Based on the theory of spring deflection, I believe: Suppose the
object (goose or large weight) strikes a compression spring. The spring
would compress to about the same amount because the spring equation,
E_spring = k_spring_constant * X_deflection, shows the linear
proportionality between energy and compression.)

"I ate his liver with some fava beans and a nice Chianti. While the goose
had given me visions of a lovely golden roasted breast and some delicious
foie gras, the pilot, now devoid from his machine, was much easier to
catch."

Hannibal the Cannibal Burns?

;-)
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

Very true. Before your aircraft becomes mince-meat. It would be nice to have custom built model of your aircraft. Something to be proud of everytime you walk into your living room or study.

www.customairmodels.com

("Morgans" wrote)
Border collies do the best job of this, once you convince them that
that's what they're supposed to do.

It has been my experience (owner of 2 of 'em) that they need no
convincing.
They try to heard stuff, by instinct, and since geese don't "like to be
herded," they fly away. g


Nop's Trials
Donald McCaig
Publisher: HarperCollins Publishers (June 4, 1984)
ISBN: 0002227665

Read this book years ago, kind of a Black Beauty for Border Collies.


Montblack

"George Patterson" wrote

Border collies do the best job of this, once you convince them that that's
what
they're supposed to do.

It has been my experience (owner of 2 of 'em) that they need no convincing.
They try to heard stuff, by instinct, and since geese don't "like to be
herded," they fly away. g
--
Jim in NC

"Jim Logajan" wrote in message
.. .
The goose and falling weight do, however, strike with comparable kinetic
energies:

E_goose = 0.5*14*120*120
= 100,800

E_wt = 0.5*1000*15*15
= 112,500

So maybe this is why Sport Aviation claims the strikes are comparable. If
I
recall correctly, damage is roughly proportional to energy of impact, not
momentum. (Based on the theory of spring deflection, I believe: Suppose
the
object (goose or large weight) strikes a compression spring. The spring
would compress to about the same amount because the spring equation,
E_spring = k_spring_constant * X_deflection, shows the linear
proportionality between energy and compression.)

Yup, good point. If the goose exerted the same force as the falling weight,
the goose's energy would be much greater than the falling weight's; instead,
the goose exerts far less force, but its energy is comparable to the falling
weight's.

--Gary

I caught the end of another Hannibal movie last night that I didn't even
know existed, Red Dragon. Now I'll have to rent it so I can watch the first
3/4 of it. It ended like it was a pre-courser to Silence of the Lambs.

Jim


"Jay Honeck" wrote in message
news:gPVbf.530854$_o.217690@attbi_s71...
"I ate his liver with some fava beans and a nice Chianti. While the
goose
had given me visions of a lovely golden roasted breast and some
delicious
foie gras, the pilot, now devoid from his machine, was much easier to
catch."

Hannibal the Cannibal Burns?

;-)
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

Anybody notice the goose strike last thursday by a Boeing 737 at
FL360??? See
http://www.faa.gov/data_statistics/a...a/D_1104_N.txt

How can they fly at 36,000? Hardly any oxygen and really freezing.