Flight deck window strength.

[Plaprad]

I read through the P-model -1 last night (slow night) and there was a note about the NESA windows that they are stronger with NESA turned on during flight. I never heard of this and hoped someone knew why this would be. I'm stumped on it.

[Zaherk]

Have a look at the Service News articles V15N1 and V19N3. Its all to do with the brittleness of the plastics at lower temps and the optimum temp for flexibility to withstand impact.

[Plaprad]

Ahh, I knew there was a reason I had all those on my computer. Very good stuff. I guess you do learn something everyday. Thanks.

[pjvr99]

I once got a center right window that the heating elements had broken. I set

it up at my local shooting range with some paper targets behind it. 5 shots

with a 9mm P, 3 with a .45ACP, a 2 with a .357 Desert Eagle didn't penetrate,

but made me think seriously about being crew. The paper targets behind were

shredded!!! Hail and birdstrikes shouldn't be too much of an issue, as mostly

the window will either deflect or the whole panel will be pushed in; small diameter

high energy objects turn the inner layer into a shrapnel storm of note.

[bischoffm]

That glass ain't bullet proof it's only chicken resistant:o

[Fräulein]

That glass ain't bullet proof it's only chicken resistant:o

Chicken yes. Bald Eagle no.

[Dan Wilson]

Chicken yes. Bald Eagle no.

Nor turkey vulture proof (or better yet kommiefornia condor proof LOL)

[tinyclark]

kommefornia, how true is that?

[Dave in WV]

I don't know if it's still in the -1 but there was an air speed limitation below 10K' alt (IIRC) if the NESA was inop.

[SEFEGeorge]

Once had a bird strike on a night low-level at the Rock. I had a student engineer, so I was standing next to him, and something hit, LOUD, right above my head. Sure make me want to duck. Probably wasn't a duck, but......... 8-)

[RClark]

Turkey buzzard through center window 86 Red Flag. Blood, guts, feathers, glass all over the cockpit, beak and head in 245.

[agarrett]

I don't know if it's still in the -1 but there was an air speed limitation below 10K' alt (IIRC) if the NESA was inop.

187KIAS

[bischoffm]

That is why I said resistant and not proof. I have seen the other results very nasty. They resist to the point of penetration:eek:, which is pretty much immediate.

[P3_Super_Bee]

You practically can learn something new, everyday forever. The guy who "knows everything" isn't the guy I'd want working on my aircraft.

I worked on P-3's for 20 years... Never came close to learning it all. And learned something new right up till the day I retired.