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IvyMercyLyons

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resource for aircraft v-speeds

does anyone know where to read about this sort of thing? most sites don't seem to go so in-depth, and it seems like many older speedometers didn't mark them. i understand it's unlikely that really old planes had any such measurements at all, but does anybody know where to find a directory or resource for the speeds important to the operations of various aircraft?

Winston Smith

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Re: resource for aircraft v-speeds

Do you want to learn about V-Speeds in general?  They seem to be more of a civil requirement for the aviation industry and a reasonably recent one at that.  I'm sure WW2 era military aircraft had their own versions but they may have been more along the lines of: "Don't take off slower that 80knts", kinda thing. 

Anyway, here's some links for general information:
http://guthrieaviation.com/cms/index.ph … 3-v-speeds
https://www.ivao.aero/training/document … _speed.pdf

Here's a site for Cessna 172 SP - V Speeds.  You can study the material and even test yourself - who knows, you might be flying in the real world someday!
https://quizlet.com/15825269/cessna-172 … ash-cards/

But if you're more interested in WW2 aircraft then here's a paper I found:
http://www.wwiiaircraftperformance.org/sl-wade.html

Same info in chart form:
http://www.wwiiaircraftperformance.org/ … chart1.jpg

But I think this is the goldmine for WW2 era aircraft, though it's not laid out for the layman:
http://www.wwiiaircraftperformance.org/

And a couple more:

http://www.spitfireperformance.com/spittest.html

http://www.zenoswarbirdvideos.com/index.html

Last edited by Winston Smith (2016-03-02 09:35:53)

IvyMercyLyons

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Re: resource for aircraft v-speeds

thank you! would you happen to know a resource for landing gear speed tolerances (on aircraft with retractable gears where it's a necessity,) as well as, possibly, something on a 50s, 60s or possibly newer military jet aircraft? (i'm under impression that the latter is kept under wraps, but it's deeply interesting...)

Winston Smith

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Re: resource for aircraft v-speeds

Lol.  I'll have a look tomorrow.  I think info on planes from the 70s or earlier should but public by now.

IvyMercyLyons

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Re: resource for aircraft v-speeds

thanks!

Winston Smith

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Re: resource for aircraft v-speeds

It's a bit difficult for me to find specific information on landing gear speed tolerance levels, however, I found a link to a good book about WWII test pilots:

https://books.google.co.jp/books?id=NFT … 29&f=false

In terms of modern military aircraft, you're right that there's a lot that is "unknown".  However, I found some flight manuals which, if you were to invest the time, you could discover most of the information you'd be looking for:

F-86 Sabre
https://books.google.co.jp/books?id=Fde … &q&f=false
F4 Phantom
http://www.f4phantom.com/docs/NATOPS-Fl … rcraft.pdf
Mirarge F1
http://www.avialogs.com/en/aircraft/fra … tions.html
SR-71
http://www.sr-71.org/blackbird/manual/
F-16
https://fas.org/man/dod-101/sys/ac/docs/11-F16V3.pdf
Mig-21
https://books.google.co.jp/books?id=Hy6 … &q&f=false
Mig-25 and Mig-31
http://www.scribd.com/doc/156183172/MiG … pdf#scribd
Mig-29
http://air.felisnox.com/view.php?name=mig29fm.pdf

And here's a useful overview site:
http://www.aerospaceweb.org/aircraft/fighter/

Enjoy!

Pleiades53

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Re: resource for aircraft v-speeds

Search by typing: VNE F16.
Result:
http://www.howitflies.com/General-Dynam … -Airspeeds
VNE is SPEED NEVER EXCEED. V is always speed in aviation.
VFE
Vy (Axis) etc. etc.

Pleiades53

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Re: resource for aircraft v-speeds

Also you might search out Jeppenson Sanderson Manuals.

IvyMercyLyons

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Re: resource for aircraft v-speeds

this is my current favorite forum... thank you