Thirty Minute Rule Is Now In Effect
Our Current Auction Closes Jun 21    
Home |Sitemap|Contact Us| Past Auctions  
 How to Bid   Register to Bid   Auctions   Consign   About US   Featured Lots   Reviews 
Bidder Login
Bidder #
Password

New Bidder Registration
Forgot your password?

The Current Auction
Ends June 21st
The Significant Letter Collection of Victor Niederhoffer Auction Preview
Begins Jun 22
Search
Advanced Search
By Item Number
Gallery Search
Past Auction Search
Bidding
How Do I Bid?
What is BidTracker™?
New Bidder Registration
The 30-Minute Rule
Terms and Conditions
New to RR Auction?
About Us
Testimonials
Register to Bid
Jobs at RR Auction
Press Releases
Consign to RR Auction
How to Consign
2018 Auction Calendar
Jan 10
Jan 18
Feb 7
Feb 15
Mar 7
Mar 15
Apr 11
Apr 19
May 9
May 17
Jun 13
Jun 21
Jun 28
Jul 11
Jul 19
Jul 26
Aug 8
Aug 16
Sep 12
Sep 20
Oct 10
Oct 18
Nov 7
Nov 15
Dec 5
Dec 13
  More Dates & Deadlines

Item 245 - Apollo LM Flight Director Attitude Indicator Catalog 409 (May 2013)

Back To Previous Page
(we are no longer accepting bids on this item)
Minimum Bid: $5,000.00
Sold Price: $66,734.40 (includes buyer's premium)

Description


Very rare and highly important Apollo Lunar Module Flight Director Attitude Indicator (FDAI). Unit measures approximately 5.75 x 5.75 x 11, with the top of the metal cased unit bearing a Lear Siegler manufacturer’s label, identifying the part as an “Indicator Attitude,” part number P 144200-07, serial number “13,” and model number “4068C.” Unit also has an electrical connector protruding from the back. Two of these would have been installed on board each lunar module. Unit is not flown.

The red, black, and white ‘8 ball’ was used to define the relative position of the spacecraft in three-dimensional space. The pitch attitude is represented by the large semi-circles (horizontal relative to the numbers on the ball). The yaw attitude is represented by the small circles (vertical relative to the numbers on the ball). The semicircle immediately under the ‘wing’ is the current pitch angle. The two red circles centered at yaw 0 and 180 degree poles indicate where the inertial guidance gimbals are in danger of locking (gimbals from two axes aligning with each other) causing loss of attitude reference. Indicator has its original glass interface with three yellow bars over the top, which showed the error in each axis, from the desired value, by the displacement of the right and bottom of the ‘8 Ball,’ and also has its three rate needles on the sides of the display. Originally designed to be three different panel instruments, the astronauts, many of which were pilots, lobbied for an all-in-one device similar to the artificial horizon indicator in airplanes. Two of these units would be installed on each Lunar Module. While FDAI's from the Command Module have previously been offered, our research has not found an example of another Lunar Module FDAI coming up for sale. An outstanding, intact example of one of the most important instruments necessary for space travel. RR Auction COA.

Terms and abbreviations used in our descriptions.


You must be a registered user and logged in to view Past Auction Item Images

If you do not currently have an account, click here to go to our secure registration page.

Important Information


Tips For Consignors

Auctions

For a complete list of auction beginning and ending dates, check our dates and deadlines page.