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An attempt to land into a cooling tower

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An attempt to land into a cooling tower

Postby Anarcho-pilot » Wed Mar 27, 2019 6:29 pm

An unsuccessful attempt to land the Bo 105CBS helicopter into the cooling tower of Kharkiv TEC-5. Airport of departure - UKHH.
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Re: An attempt to land into a cooling tower

Postby Johan G » Fri Mar 29, 2019 7:01 pm

Ouch.
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Re: An attempt to land into a cooling tower

Postby cgdae » Wed Apr 03, 2019 11:57 am

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Re: An attempt to land into a cooling tower

Postby StuartC » Wed Apr 03, 2019 12:34 pm

Harries don't have, never have had, and never will have, autohover………...
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Re: An attempt to land into a cooling tower

Postby cgdae » Wed Apr 03, 2019 2:06 pm

StuartC wrote in Wed Apr 03, 2019 12:34 pm:Harries don't have, never have had, and never will have, autohover………...


One harrier, XW175, did. See: http://www.bahg.org.uk/Harr_175.htm

Also see "Civilian Flies Harrier with New Control System": https://www.youtube.com/watch?v=VhTH9TP6-1c

I think they tried various different control methods, and i don't know whether auto-hover is similar to any of them (probably not). In particular, auto-hover assumes the different axes are completely independent, which i suspect a proper system would address.
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Re: An attempt to land into a cooling tower

Postby Johan G » Fri Apr 05, 2019 2:19 pm

cgdae wrote in Wed Apr 03, 2019 2:06 pm:
StuartC wrote in Wed Apr 03, 2019 12:34 pm:Harries don't have, never have had, and never will have, autohover………...


One harrier, XW175, did. [...]

I think they tried various different control methods, and i don't know whether auto-hover is similar to any of them (probably not). In particular, auto-hover assumes the different axes are completely independent, which i suspect a proper system would address.

IIRC it was a two seater modified with FBW that would have envelope protection and hover stable enough to let even non-pilots fly it in hover (with a backup pilot in the back seat). Highly impressive considering the Harrier's early history. This Flight International article by non less than John Farley [1] might be interesting: Single minded


NASA had a modified single seater for similar purposes, called the VSRA (V/STOL systems research aircraft), and NASA and MOD had some joint projects regarding control and display systems [2] (as the pilot effectively is part of the control loop, different combinations of control laws and HUD symbology laws will make a difference for the handling qualities [3], [4])

[1] Probably the most experienced Harrier test pilot. Wikipedia biography (perm)
[2] Collaborative research on V/STOL control system/cockpit display tradeoffs under the NASA/MOD joint aeronautical program
[3] Design and evaluation of a cockpit display for hovering flight
[4] Flight evaluation of advanced controls and displays for transition and landing on the NASA V/STOL systems research aircraft
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Re: An attempt to land into a cooling tower

Postby cgdae » Mon Apr 08, 2019 11:06 pm

Johan G wrote in Fri Apr 05, 2019 2:19 pm:
cgdae wrote in Wed Apr 03, 2019 2:06 pm:
One harrier, XW175, did. [...]

IIRC it was a two seater modified with FBW that would have envelope protection and hover stable enough to let even non-pilots fly it in hover (with a backup pilot in the back seat). Highly impressive considering the Harrier's early history.


Many thanks for this info and the very interesting links!
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Re: An attempt to land into a cooling tower

Postby Catalanoic » Mon Apr 08, 2019 11:37 pm

dont try this at home
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Re: An attempt to land into a cooling tower

Postby Johan G » Tue Apr 09, 2019 9:36 am

cgdae wrote in Mon Apr 08, 2019 11:06 pm:Many thanks for this info and the very interesting links!

You are welcome. :D

And sorry for getting a bit off topic. :oops:
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Re: An attempt to land into a cooling tower

Postby VinceHarada » Wed Apr 10, 2019 8:08 am

Catalanoic wrote in Mon Apr 08, 2019 11:37 pm:dont try this at home

LOL :lol: top 5 nursery glider - cook recipes
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