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    Re: Admiral GAGO Coutinho
    From: Gary LaPook
    Date: 2010 Oct 22, 03:28 -0700

    I saw this instrument in the Naval Museum in Lisbon.
    
    gl
    
    On 10/19/2010 1:27 PM, rcostapinto wrote:
    > I'm going to try put some English sub-titles.
    >
    > Best regards
    > Rui Miguel da Costa Pinto
    >
    > http://gagocoutinho.wordpress.com
    >
    >
    >
    > -----Mensagem original-----
    > De: navlist-bounce@fer3.com [mailto:navlist-bounce@fer3.com] Em nome de Gary LaPook
    > Enviada: terça-feira, 19 de Outubro de 2010 21:20
    > Para: NavList@fer3.com
    > Assunto: [NavList] Re: Admiral GAGO Coutinho
    >
    >
    >    I don't speak Portuguese but it was easy to interpret a caption at
    > 19:35 into the video. It quotes John Glenn as saying that on the first
    > orbital flight  a modern sextant was carried that had been inspired by
    > the sextant created by Admiral Cortinho for aerial navigation.
    >
    > gl
    >
    >
    > On 10/18/2010 2:43 PM, Douglas Denny wrote:
    >> Very interesting. Pity it does not have English sub-titles.
    >>
    >> I have one of these sextants. They are the first successful bubble
    >> sextant for aviation use. Basically a marine sextant modified with two
    >> standard type of bubble spirit level tubes: one to hold the sextant
    >> horizontal laterally, and the other to establish vertical.
    >> The telescope is a bifocal allowing a view of the normal index and
    >> horizon mirrors as normal, and the bubble arrangement at the same
    >> time. Hence the telescope views at infinity for index/horizon, and a
    >> few cm for the bubble at the same time. Quite simple, but ingenious.
    >> There is a battery (in the handle) and lamp system to illuminate the
    >> bubbles.
    >>
    >> Douglas Denny.
    >> Chichester. England.
    >> ----------------------------------------------------------------
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    >
    >
    >
    >
    >
    >
    >
    
    
    
    
    

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