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    Re: Amelia Earhart's aerial navigation
    From: Gary LaPook
    Date: 2009 Nov 16, 00:16 -0800

    I have attached three photos from Morissey's book showing the MK II 
    drift sight/pelorus in the window of NR16020. I have also attached 
    another picture I found on line showing the same thing. I have included 
    an excerpt from H.O. 216 explaining how the MK II was used for taking 
    drift sights. I have attached four photos of my MK II C which differs 
    from the MK II used by Noonan only in the sighting head, the MK IIC uses 
    an illuminated reflector sight while the earlier model had a plain 
    sighting tube. It consists of a base plate with a rotatable scale (used 
    for taking bearings) that can be locked in place and the sighting head 
    on an extendable shaft with an indicator arm mounted at the bottom. The 
    head is placed into the base and extended to the proper height and 
    locked into place. For taking drift readings the rotatable scale is not 
    used, just the fixed drift scale.
    I don't know how it would have been used for drift sights mounted in the 
    window since you must look directly behind the aircraft to measure the 
    drift. I had heard (I don't remember where) that a provision was made to 
    prop the door out slightly and to mount the sight in the gap so that an 
    observation towards the tail could be made.
    frankreed@HistoricalAtlas.com wrote:
    > Jackie, you wrote:
    > "One of the few things we know for sure is there was a pelorus fitted on a 
    bracket at the starboard window which I understood him to have used to take 
    bearings. This is shown in several photographs."
    > Can anyone point me to one of these photos somewhere online? I tried to find 
    one. Based on the text descriptions I've found of the gear in the navigator's 
    station on the Electra, I would now guess that the current film got the 
    details exactly correct visually.
    > And you wrote:
    > "I havent seen the film yet, but I have heard it pays scant attention to 
    Noonan. But at least this time round they get the resemblance right. 
    Apparently he is portayed as unintelligent and boisterous. Quite the 
    opposite. He was highly intelligent and quiet spoken."
    > I wouldn't say that he's portrayed as 'unintelligent' --it's just that his 
    character is barely fleshed out --"scant attention" just as you say. As for 
    being 'boisterous', the rumors of drinking come up early and there's a 
    speculative scene where he very mildly hits on Earhart while drinking the 
    night before the last flight. He (the character) apologizes the next morning 
    and all is forgiven and forgotten. Though that's all pure speculation, it 
    wouldn't surprise me if the issue had arisen at some point during the 
    circum-navigation given Earhart's well-known extra-marital activities and 
    given the amount of time they spent together. Like I say, it's not played in 
    the film as salacious gossip. It simply calls attention to something that 
    every viewer has to be thinking.
    > I think the square door I thought I saw, and mentioned previously, was a 
    perspective trick. I checked the trailers online, hoping for a shot of 
    Noonan's navigation station with the pelorus, and saw a different angle on 
    the door --not square.  
    > -FER
    > >
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