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Mitchell Holman[_5_]
July 10th 10, 12:56 PM

Andrew Chaplin
July 10th 10, 02:42 PM
Mitchell Holman > wrote in
30:

>
> begin 644 UH5 Sikorsky.jpg
>
> Attachment decoded: UH5 Sikorsky.jpg
> `
> end

I believe that was emergency ditching gear, rather than landing gear.

Strange to see it deployed, all the same.
--
Andrew Chaplin
SIT MIHI GLADIUS SICUT SANCTO MARTINO
(If you're going to e-mail me, you'll have to get "yourfinger." out.)

Mitchell Holman[_5_]
July 10th 10, 03:29 PM
Andrew Chaplin > wrote in
:

> Mitchell Holman > wrote in
> 30:
>
>>
>> begin 644 UH5 Sikorsky.jpg
>>
>> Attachment decoded: UH5 Sikorsky.jpg
>> `
>> end
>
> I believe that was emergency ditching gear, rather than landing gear.
>
> Strange to see it deployed, all the same.



What is the little airfoil just beneath
the main rotor?

Ken Murphy[_2_]
July 11th 10, 11:27 PM
On Sat, 10 Jul 2010 20:13:07 +0200, DAN > wrote:

The airfoil is a "Wobble Plate Stabilizer" which consisted of a small
wing mounted on and behind the non-rotating portion of the wobble
plate and served primarily as a means of trimming the inherent control
forces and damping any displacements occurring during flight.

quoted from http://www.uscg.mil/history/webaircraft/Sikorsky_HO3S.pdf

Ken


>
>As for the airfoil, it does not appear in other HO3S photos.
>Maybe this is the specially-modified HO3S-3 ?

Mitchell Holman[_5_]
July 16th 10, 03:28 AM
Ken Murphy > wrote in
:

> On Sat, 10 Jul 2010 20:13:07 +0200, DAN > wrote:
>
> The airfoil is a "Wobble Plate Stabilizer" which consisted of a small
> wing mounted on and behind the non-rotating portion of the wobble
> plate and served primarily as a means of trimming the inherent control
> forces and damping any displacements occurring during flight.
>
> quoted from http://www.uscg.mil/history/webaircraft/Sikorsky_HO3S.pdf
>
> Ken
>

Thanks for the update.

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