Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    A-8A Aircraft Sextant
    From: Michael Bernhardt
    Date: 2017 Sep 2, 13:56 -0700

    First off I am retired Air Force, spent my entire career in Aircrew Life Support. I have always been a military history nut, I have uniforms, hats, aircrew and ground crew helmets, flight equipment, military surplus weapons. Plus the various military mementos GI's tend to collect, IE shell casings, leaflets, unit coins, artwork etc.

    With the introduction out of the way....

    I have a Bausch & Lomb A-8A sextant that I have had for many years. Like many examples in the wild, there are parts in the box that as missing, IE the screw driver, adjusting wrench, and the ever elusive spare bubble chamber assembly. I would like to make the display as complete as I can. I have discovered looking on the internet that while Fairchild sextants can be found here and there, the B&L is turing out to be as elusive as the Unicorn.

    I know by looking at pictures online that B&L made many different sextants, they all have some similarities and differences. So how different is the bubble chamber assembly between the different B&L sextants? I have found mention to the following B&L sextants models AN 5854-1, the following 4 are listed in my copy of AN 05-35-7 Operation, Service and Overhaul Instructions for Aircraft Sextants A-6, A-6A, A-8, A-8A, and I found mention of an Improved Type D (Can't find any information on this one).

    What does the Screw Driver PN 27728-34 look like? What does the Adustment Wrench PN 24361-120 look like?

    If I could find a basket case (I just can't bring myself to cannibalize one that is restorable) B&L sextant with a compatable bubble chamber I would cannibalize it for parts!

    One more question and I'll close for now, does anyone here do bubble chamber overhauls? I looked at the instructions on how to do it, it's a little too delicate an operation for this caveman, LOL!

    I would be very grateful for any leads or help in this endeavor.

    Mike
    TSgt, USAF Retired
    Jan 86 - Sept 08
    Aircrew Life Support
    "Your Life Is Our Business"
    (122X0, 1T1X1, 1P0X1)
    NRA Life Member

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site