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 November 11th
Marvels of Modern Music Auction Preview
Begins Nov 12
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
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 11
Oct 7
Oct 15
Nov 11
Nov 19
Dec 9
Dec 17
  View All Dates & Deadlines

Item 8118 - Lunar Module Translation Control Assembly Catalog 581 (Apr 2020)

Back To Previous Page
(we are no longer accepting bids on this item)
Minimum Bid: $1,000.00
Sold Price: $12,501.25 (includes buyer's premium)

Description


Rare Lunar Module Translation Control Assembly, measuring 7.75″ x 8″ x 5″ overall, with upper portion missing original Grumman Aircraft Eng. Corp label and marked “Not For Flight.” The assembly consists of the original housing structure with external "Friction" knob, which controlled the drag on the T-handle, and a vertical lever to select between "Throttle," or "Jets." The T-handle hand controller and lower blue skirt are realistic 3D prints. In fine condition, with expected signs of use.

The Thrust Translation Control Assembly (TTCA) was used by the Apollo astronauts to control translation of the Lunar Module (LM) in any axis during missions to and from the lunar surface. Two TTCAs, each made for left-handed control, provided the LM astronauts with the capability to gently guide the LM on each axis and also provided a manual throttle mode to provide varying thrusts of the descent engine. A soft stop is designed at 53 degree deflection of the throttle handle, which allowed for command of 0-53 percent thrust of the descent engine when fine control was required during landing maneuvers. Beyond the soft stop were 10 degree of handle deflection for controlling 53-100 percent of descent-engine thrust.

The importance of this controller to the Apollo mission cannot be overemphasized. It was this controller that enabled all the Apollo lunar landings to be successful, as the necessity for manual control in the final stages of landing were crucial. In the very first moon landing, Neil Armstrong was forced to take manual control of the LM when it was headed for a boulder-strewn area. With the important help of Buzz Aldrin, Armstrong was able to land the LM safely with less than 30 seconds of fuel available.

Terms and abbreviations used in our descriptions.

Images


Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge

Important Information


Tips For Consignors

Auctions

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