Skip to main content
Go to accessibility notice


    X-15: Neil Armstrong's Handwritten Notes (Two Pages) regarding the "Second Simulator Program" Directly From The Armstrong Family Collection™, Certified and Encapsulated by Collectibles Authentication Guaranty. Two pages, handwritten in green pencil on lined legal pad sheets along with an index card with "Second Simulator Program" written in purple pencil. These are apparently his critiques of the simulator.

    The first page is titled "Minimum Gain" and lists various points including: "Gains too low"; "250K entries- O.K at 15°, Hard at 20°, 25° - must be lucky'; and "Ditch rate command hard to use (Reaction control is left stick)'.

    The second page is titled "MFS [Manned Flight Simulator]" and lists these points, among others: "Pitch Rate Unnatural"; "Trim Pitch Rate Unnatural"; and "Weakest in yaw - I yielding roll".

    A perfect lot for the aviation collector. Unique. Rusty paperclip indentations on all three pages, otherwise very fine. Sealed in two separate numbered archival sleeves. This lot will include Statements of Provenance signed by Neil Armstrong's sons, Rick and Mark.

    Learn more about Collectibles Authentication Guaranty (CAG).

    Auction Info

    Auction Dates
    November, 2018
    1st-3rd Thursday-Saturday
    Bids + Registered Phone Bidders: 2
    Lot Tracking Activity: N/A
    Page Views: 1,227

    Buyer's Premium per Lot:
    25% on the first $250,000 (minimum $19), plus 20% of any amount between $250,000 and $2,500,000, plus 12% of any amount over $2,500,000 per lot.

    Sold on Nov 1, 2018 for: Sign-in or Join (free & quick)
    Track Item

    Heritage membership

    Join Now - It's Free

    1. Past Auction Values (prices, photos, full descriptions, etc.)
    2. Bid online
    3. Free Collector newsletter
    4. Want List with instant e-mail notifications
    5. Reduced auction commissions when you resell your
    Consign now
    • Cash Advances
    • More Bidders
    • Trusted Experts
    • Over 200,000 Satisfied Consignors Since 1976
    Only 32 days left to consign to the 2021 September 26 Autumn Luxury Accessories Signature Auction!

    Learn about consigning with us

    I don’t often do testimonials but in this case I felt truly obligated to thank Heritage Auctions for the extremely professional job your organization did for me.
    Charlie K.,
    Pittsburgh, PA
    View More Testimonials receives more traffic than any other auction house website. (Source:

    Video tutorial

    Getting the most out of search