RR Auction Home
Current Auction Is Open For Bidding
Home |Sitemap|Contact Us| Past Auctions  
 How to Bid   Register to Bid   Auctions   Consign   About Us   Featured Lots   Reviews 
Bidder Login
Show Password

New Bidder Registration
Forgot your password?

The Current Auction
Ends July 16th
Olympic Memorabilia Auction Preview
Begins Jul 17
Advanced Search
By Item Number
Gallery Search
Past Auction Search
How Do I Bid?
What is BidTracker™?
New Bidder Registration
The 30-Minute Rule
Terms and Conditions
New to RR Auction?
About Us
Register to Bid
Jobs at RR Auction
Press Releases
Consign to RR Auction
How to Consign
2019-2020 Auction Calendar
Jan 8
Jan 16
Jan 23
Feb 5
Feb 13
Feb 21
Mar 4
Mar 12
Apr 8
Apr 16
May 13
May 21
Jun 10
Jun 18
Jul 8
Jul 16
Jul 23
Aug 12
Aug 20
Sep 9
Sep 12
Oct 7
Oct 15
Nov 4
Nov 12
Dec 2
Dec 10
  View All Dates & Deadlines

Item 6256 - Apollo Command Module Flight Direction Attitude Indicator Mock-Up Catalog 526 (Apr 2018)

Back To Previous Page
(we are no longer accepting bids on this item)
Minimum Bid: $300.00
Sold Price: $5,427.98 (includes buyer's premium)


An Apollo Command Module Flight Direction Attitude Indicator (FDAI) '8 ball' mockup used by Apollo Mission Control Center Guidance, Navigation and Control engineers as a training tool for Apollo 7, 8, and 9. The black, white, and red ball is encased in a 5.5 x 6.25 x 5.5 acrylic holder with a reticle on the front. In fine condition, with general wear. Accompanied by a letter of provenance from Apollo GNC Neil Hutchinson, in part: "This Apollo '8-ball' was built by Frank DiGenova, a Staff Support Room flight controller in the Houston Mission Control Center. Frank was an expert in spacecraft guidance and control systems and built the device to hep train Apollo Guidance, Navigation and Control Engineers (call sign GNC) how to visualize various Apollo spacecraft attitude maneuvers. The actual spacecraft of course had real '8-balls' connected to appropriate electronics and an inertial platform as a primary instrument for the flight crews…This unique tool was used by me and other GNC flight controllers for Apollo 7, 8, and 9 and has been in my possession since Apollo 9." Inside the Command Module, the red, black, and white ‘8 ball’ was used to define the relative position of the spacecraft in three-dimensional space. While we have offered functional FDAI hardware in the past, this is the first engineering model we have encountered.

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


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