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Old 01-28-2013, 07:44 PM   #4216
Daniii
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Quote:
Originally Posted by Klay View Post
So did the Messerschmitt 262.
I believe the F-86 Sabre Jet did also.


Probably using German blueprints.
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Old 01-29-2013, 08:19 AM   #4217
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Without consulting other than my memory I was under the impression the F86 wing was "inspired" by the ME262's wing, since at the time the US had no swept wing experience. I think the sweep is the same, and other dimensions, such as chord and camber (except trailing edge sweep) were very similar. The ME262 itself may have had a NACA "inspired" theoretical shape. Of course, I could be wrong.
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Old 01-29-2013, 09:02 AM   #4218
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Another loss...

As we discussed in previous posts, once in a while you lose a friend…

Bob H and I go back a long way, late 70s, last time we met was in Inuvik NWT over Caribou stew and bannock a couple of years ago.
Crashed the Twin Otter in Antarctica, he is probably the most experienced pilot on type and in hostile winter environments. He died in one of our favorite aircraft type DHC-6. We spent many evenings discussing the qualities of that machine and arguing about best power settings and esker landing techniques. These were the best hours I ever logged unfortunately you eventually change types but Bob never did, he loved the North and the extreme South for that matter.

We all accept the occasional outcome associated with our profession but sometimes it hurts more and the cut goes deeper. This is the one time…

RIP Bob.

Guy.
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Old 01-29-2013, 07:26 PM   #4219
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The russian mig 15 and the f86 saber were both inspired by the german scientists that were "stolen" or given "asylum" at the end of world war II.

Our idea of a jet wing looked like this (p51 wing anyone?):






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Old 01-29-2013, 10:28 PM   #4220
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Quote:
Originally Posted by Beamer Pilot View Post
As we discussed in previous posts, once in a while you lose a friend…

Bob H and I go back a long way, late 70s, last time we met was in Inuvik NWT over Caribou stew and bannock a couple of years ago.
Crashed the Twin Otter in Antarctica, he is probably the most experienced pilot on type and in hostile winter environments. He died in one of our favorite aircraft type DHC-6. We spent many evenings discussing the qualities of that machine and arguing about best power settings and esker landing techniques. These were the best hours I ever logged unfortunately you eventually change types but Bob never did, he loved the North and the extreme South for that matter.

We all accept the occasional outcome associated with our profession but sometimes it hurts more and the cut goes deeper. This is the one time…

RIP Bob.

Guy.

Sorry to hear that. May they rest in peace.
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Old 01-30-2013, 09:33 AM   #4221
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Snip

We all accept the occasional outcome associated with our profession but sometimes it hurts more and the cut goes deeper. This is the one time…

RIP Bob.

Guy.
Sorry to hear it. You've said a mouthfull there.
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Old 01-30-2013, 11:41 AM   #4222
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Interesting task as well to try and build in some aerodynamics that will yield a bit of hysteresis (you want the deploy and retract speeds to be different), unless that comes for free.

You wouldn't want the dang things popping in and out when you were near the deploy or retract transition.
I don't think that you could actually vary the airspeed that quickly, and I doubt they "pop", there is probably a fairly smooth transition. If you were to vary the airspeed/laminar flow that quickly you would want them deployed (high load stall, gusts etc),
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Old 01-30-2013, 11:44 AM   #4223
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Originally Posted by Beamer Pilot View Post
As we discussed in previous posts, once in a while you lose a friend…

Bob H and I go back a long way, late 70s, last time we met was in Inuvik NWT over Caribou stew and bannock a couple of years ago.
Crashed the Twin Otter in Antarctica, he is probably the most experienced pilot on type and in hostile winter environments. He died in one of our favorite aircraft type DHC-6. We spent many evenings discussing the qualities of that machine and arguing about best power settings and esker landing techniques. These were the best hours I ever logged unfortunately you eventually change types but Bob never did, he loved the North and the extreme South for that matter.

We all accept the occasional outcome associated with our profession but sometimes it hurts more and the cut goes deeper. This is the one time…

RIP Bob.

Guy.
I have worked on those planes, and may have actually worked on that very airplane years ago. There is always a lump that forms in my throat when I hear about these incidents. It gets bigger the closer it is to home.

My condolences for to those who knew the crew.
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Old 01-30-2013, 03:25 PM   #4224
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It'[s an eye opener if you've flown and/or wrenched on airplanes for awhile to look in the accident database and search registration numbers and see what's happened to many of them. Last I checked it was 12 totaled/written off, many with fatalities, thankfully, neither cases with myself involved.

RE: "auto slats". On some occasions the slats on the Helio Courier could deploy asymmetrically. Obviously asymmetric retraction is what you'd want to avoid.
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Old 01-31-2013, 05:02 PM   #4225
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F-35 electronic systems. http://www.es.northropgrumman.com/so...odasvideo.html

question is, do we give this to every country who buys the F-35?
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Old 01-31-2013, 05:50 PM   #4226
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Originally Posted by Daniii View Post
F-35 electronic systems. http://www.es.northropgrumman.com/so...odasvideo.html

question is, do we give this to every country who buys the F-35?
Of course not.

I wouldn't be surprised if the F-16s we sent to Egypt have something embedded in their electronics package that would make it possible for either us or Israel to shut them down with a push of a button.
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Old 01-31-2013, 06:08 PM   #4227
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We tried our best to blow up an APU cart in turbine engine theory yesterday.


It was fun.
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Old 01-31-2013, 06:21 PM   #4228
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Its a clever little cycle. Sometime ago some of the electronics in the F16 went into Israel's Kfir fighter. "Somehow" some of those electronics ended up in China's new frontline fighter. When that "news" came out is when the clamor for a new fighter (essentially the F22) came around. Wink, wink, nod nod.
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Old 01-31-2013, 06:45 PM   #4229
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Quote:
Originally Posted by Daniii View Post
F-35 electronic systems. http://www.es.northropgrumman.com/so...odasvideo.html

question is, do we give this to every country who buys the F-35?
If we don't sell that thing to a lot of other countries, this ongoing 11-year disaster called the F-35 project will get even worse.
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Old 01-31-2013, 07:05 PM   #4230
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If we don't sell that thing to a lot of other countries, this ongoing 11-year disaster called the F-35 project will get even worse.
Oh, they'll sell the airframe. But let's hope not the fancy electronics.
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