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Author Topic: Could this happen in a real 29??  (Read 2082 times)

Offline HawkerMKII

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Could this happen in a real 29??
« on: March 07, 2011, 08:06:32 AM »
Look at speed..............yes it was in a dive :salute

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Offline EskimoJoe

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Re: Could this happen in a real 29??
« Reply #1 on: March 07, 2011, 08:10:49 AM »
Your clipboard just so happens to cover up your main bomber...

How convenient...  :noid
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Offline RobMo68

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Re: Could this happen in a real 29??
« Reply #2 on: March 07, 2011, 09:16:10 AM »
Well, considering that you didn't give us your alt, and judging from the pic, you were prolly above 25k, so yeah you could prolly get away with -4500 fpm descent rate UP THAT HIGH, do it around 15k and you wont keep those wings attached for very long!
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Offline VonMessa

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Re: Could this happen in a real 29??
« Reply #3 on: March 07, 2011, 09:19:55 AM »
Quote from: EskimoJoe on March 07, 2011, 08:10:49 AM
Your clipboard just so happens to cover up your main bomber...

How convenient...  :noid

That and your code is showing in your sig...   :o
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Offline infowars

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Re: Could this happen in a real 29??
« Reply #4 on: March 07, 2011, 09:20:19 AM »
yeah those clouds are at 15K
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Offline LLogann

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Re: Could this happen in a real 29??
« Reply #5 on: March 07, 2011, 09:36:50 AM »
You do realize you can calculate his alt based on the difference been true and indicated airspeeds, right?

Quote from: RobMo68 on March 07, 2011, 09:16:10 AM
Well, considering that you didn't give us your alt, and judging from the pic, you were prolly above 25k, so yeah you could prolly get away with -4500 fpm descent rate UP THAT HIGH, do it around 15k and you wont keep those wings attached for very long!
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Offline RobMo68

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Re: Could this happen in a real 29??
« Reply #6 on: March 07, 2011, 09:58:03 AM »
Quote from: LLogann on March 07, 2011, 09:36:50 AM
You do realize you can calculate his alt based on the difference been true and indicated airspeeds, right?


Yeah, but that's too much math, and not enough coffee yet, this time of day!

The point is, up there where he's at, you could probably get away with that kind of descent rate, and bomber crews were trained to do extreme dives to extinguish engine fires that couldn't be put out by the fire suppression system, but those were EXTREME circumstances, NOT the norm, and NORMALLY, you wouldn't be doing a 4500 fpm descent rate in anything but a fighter!
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Offline LLogann

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Re: Could this happen in a real 29??
« Reply #7 on: March 07, 2011, 10:09:06 AM »
QFT....  :D  Lucky for us though that we do not have to worry about many of the main variables such as air temp/density and wind speed/direction. 

Quote from: RobMo68 on March 07, 2011, 09:58:03 AM
Yeah, but that's too much math, and not enough coffee yet, this time of day!


If you were ever interested in reading up on RL problems with doing that math, NASA has a nice 312 page publication regarding it......
http://www.spaceagecontrol.com/pm/uploads/Main.Freepubs/nasa-rp-1046.pdf

 :salute

Your guess is a little low btw, without doing any math, I'm thinking he is about 34k at the time of the screenie.  Pretty sure 29k is about 100kph above indicated.....  err, we don't use knots here, mph make it. 
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Offline RobMo68

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Re: Could this happen in a real 29??
« Reply #8 on: March 07, 2011, 10:25:07 AM »
Quote from: LLogann on March 07, 2011, 10:09:06 AM
QFT....  :D  Lucky for us though that we do not have to worry about many of the main variables such as air temp/density and wind speed/direction. 

If you were ever interested in reading up on RL problems with doing that math, NASA has a nice 312 page publication regarding it......
http://www.spaceagecontrol.com/pm/uploads/Main.Freepubs/nasa-rp-1046.pdf

 :salute

Your guess is a little low btw, without doing any math, I'm thinking he is about 34k at the time of the screenie.  Pretty sure 29k is about 100kph above indicated.....  err, we don't use knots here, mph make it. 

Like I said, too much math, not enough coffee, wrong time of day! Point being, he's up high enough (I did say he was above 25k, not what alt he was at, so I wasn't wrong either, lol.) that he can get away with that kind of descent rate, if he were down around 20k or less, he would likely lost his wings before he could get a 4500 fpm descent rate!
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Offline Westy

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Re: Could this happen in a real 29??
« Reply #9 on: March 07, 2011, 10:29:23 AM »
New plane on the block. The SBD-29

impressive
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Offline RobMo68

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Re: Could this happen in a real 29??
« Reply #10 on: March 07, 2011, 10:33:38 AM »
Quote from: Westy on March 07, 2011, 10:29:23 AM
New plane on the block. The SBD-29

impressive

Nah, you wont be doin teh "Lanc Stuka" with B-29's, cost tooo many perkies, to waste em like that! :aok
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Offline colmbo

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Re: Could this happen in a real 29??
« Reply #11 on: March 07, 2011, 11:10:01 AM »
4500 FPM isn't all that high of a descent rate.  In the Cessna jump plane I'd average around 3800fpm and still had MP up in the green to keep the engine warm.
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Offline Ruah

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Re: Could this happen in a real 29??
« Reply #12 on: March 07, 2011, 12:41:26 PM »
thats no cessna there. . .
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Offline HawkerMKII

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Re: Could this happen in a real 29??
« Reply #13 on: March 07, 2011, 12:47:06 PM »
Not sure how high it was to tell you the truth, but could a real 29 go this fast without damage at any alt?? :salute
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Offline LLogann

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Re: Could this happen in a real 29??
« Reply #14 on: March 07, 2011, 12:53:20 PM »
Comes down to air density really. Below 12k, heck no, all the way up at 30k, it is plausible.  IMHO

Quote from: HawkerMKII on March 07, 2011, 12:47:06 PM
Not sure how high it was to tell you the truth, but could a real 29 go this fast without damage at any alt?? :salute
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