Safetech E-6B Flight Computer FDF-57-B Mechanical Aviation Slide Rule Wind Correction Calculator w/ Case 9x6 Vintage Pilot Tool

Classic Safetech E-6B flight computer (FDF-57-B) with wind correction + circular slide rule—an essential pilot calculator with protective case included.

Details

• Era: Mid–late 20th century (classic analog training tool era; exact year not marked in photos)
• Brand/Maker: Safetech, Newtown, PA, U.S.A. (printed on instrument)
• Model: E-6B Computer Model: FDF-57-B  
• Type: mechanical E-6B flight computer / aviation slide rule
• Color/finish: silver-toned metal/printed grid with black markings; brown case with gold lettering

Functions (what it’s for):

1. time–speed–distance calculations
2. fuel burn / consumption planning
3. wind correction angle + ground speed
4. temperature/altitude related computations (as laid out on the dial)

Design  

• Circular slide rule side with rotating metal dial + rivets/screws
• Wind correction grid side with “To Find Ground Speed & Wind Correction Angle” instructions printed at top
• No batteries—works anywhere, anytime
• Included: protective brown leather/vinyl pouch stamped in gold “SAFETECH, INC.”

Measurements:

• Computer: approx. 9" x 6"
• Case: approx. 10" x 6"

Suggested uses

1. Flight training / ground school prop
2. Desk display for an aviation office, library shelf, or pilot gift
3. Film/TV prop, aviation history collection, aeronautical décor

Condition

• Overall vintage/used condition consistent with real training use.
• Case: visible surface wear/scuffing and patina to the brown finish (photo-verified); gold stamp still readable.
• Computer: shows typical handling wear; markings remain clear and legible in close-ups.

Not tested for calibration/accuracy beyond basic physical inspection; sold as a vintage tool/collectible with visible wear.

Collector’s Notes

The E-6B is a true pilot classic—an “always works” navigation calculator that defined generations of flight training. Safetech models like this are especially collectible with the original pouch.

Ready to add a real piece of aviation training history to your shelf (or your flight bag)? This one’s ready for its next route.

Shelf-worthy vintage finds you can trust. Find Your Story.

Shipping + Trust (Reading Vintage standards)

∙Photo-verified condition (no surprises)
∙Packed with our protective packaging standard
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