• 455 Martinson, Los Angeles
  • 8 (043) 567 - 89 - 30
  • support@email.com
  • ARISTO 90117 specially commissioned Aqua-Math for calculating the water content of tobacco leaves
  • ARISTO 90107 specially commissioned model for calculating the lifespan of filament lightbulbs
  • Koch, Huxhold & Hannemann (KHH) - made the surprising System Korte slide rule that does addition & subtraction
  • Smallwood Folding Shoe Sizing Stick in metric for French shoe sizes 10-48 in increments of a Paris point (⅔ cm)
  • Lawrence MIT Antenna slide rule for radar antenna performance was classified during WWII by UK & US governments
  • ALRO-made ruler unusually with a cursor for analysing ECG printouts of the cardiac Sinus Rhythms
  • Hatters Gauge - for measuring the size of a hat but unusually calibrated in metric & imperial
  • Glovers Rule - for measuring the length of a glove in imperial inches
  • Unusual non-logarithmic QR 41 military model by Dennert & Pape (D&P) for training anti-aircraft gunners
  • Colour combinations slide rule made by German WH-Wohnen for Interior Designers
  • Professor Fuller’s Drum Calculator from 1878 - made by W.F. Stanley
  • Modern wristwatch with slide rule bezel calculator made by German maker Kienzle
  • Ruxton made Multi-Vider combined drop-lead pencil & slide rule
  • Rare Otis King Model N for Retail & Monetary with white scales (422 & 424) on a black background
  • Darnley’s Rotable Lightning Calculator/Pencil Case calculating aid
  • Makeba made Kombinator combination pencil & slide rule
  • Rare Carbic-made Fischer Calculator slide rule
  • Specialist slide rule for a national home cable radio broadcasting system offered in The Netherlands from 1930 to1970
  • Smallest drum (≈ 2.4m) made by renowned Swiss maker LOGA

Search my slide rule collection

Search by maker

Search by keyword

Tip: separate keywords (implict AND) by a space or a comma and if needed, limit the search by adding keywords proceeded by a hyphen: e.g. -Faber, -plastic. Phrases in quotes may also be used.

Search my tech papers

Interested in finding out more about this calculating wonder? Then try one of the related articles (often light-hearted) I have published.
Go to the search my tech papers page.

Search results: Click on any Maker listed in the leftmost column for that model's full specification OR hover over its "Thumbnail" (if shown) for a pop-up enlargement of the image

You searched for: flight computer
MakerModelTypeMaterialCommentsThumbnail
Aero Products Research Inc.Computer Air Navigation Dead Reckoning CPU 26A/PPocket Aviationaluminium

Dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B + unusual pocket model

Aero Products Research Inc.E6-B2 ComputerAviationaluminium

Dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B but this time copyrighted 1967 version

AIRTOUR/POOLEYS Flight Equipment Ltd.CRP-1 ComputerAviationplastic

Modern plastic dead reckoning flight computer version of larger patented (US2097116) Dalton designed E6-B 

ALRO (All-Round)KLM SYST ALRO - System van Roon (AC-1.35)Desktop Aviationmetal/paper

Desktop version of smaller GoA with high-precision goniometric layout (double length Trig scales) by van Roon + specially commissioned dead reckoning flight computer for Dutch airline KLM for calculating course & wind correction 

ALRO (All-Round)NoName (AC-6.06)Aviation/Conversionplastic

Unusual slide rule/slide chart/nomograms (2 x Ø 7½cm discs) made for unnamed company or organisation (but Ka6 is a single-seater glider built by Alexander Schleicher GmbH & Co in Germany) for use as simple dead reckoning flight computer & for wind speed conversion + flying check-lists on back 

Betta Manufacturing Co.Flight Computor 6B/116 Mark II AMilitary Aviationaluminium/bakelite

Dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B for use by British RAF with calibrated altimeters + extra scales on cursor windows

COX & STEVENS Aircraft Corp.V (M.L. Navigatie-Doos)Boxed Aviation metal/plastic

1946 patented design (US2405803) dead reckoning flight computer/navigation kit for marine aircraft by Arthur L. Thurston for Dutch market + innovatively built into metal box with switches to change form of calculation (e.g. from flown course to course over ground) with wind, barometric & temperatures scales & speed dial inside lid + wind direction dial, various speed & optional settings & refinements (e.g. degrees of drift) built into main body of box

Crowe Name Plate and MFG. Co.Computer True Airspeed A.C. Type G - 1 Desktop Military Aviationplastic

True Airspeed (TAS) flight computer made for US Army Air Force & Navy - serial no. A 22262-A

G. Felsenthal & Sons Inc.Flight Computer MB-8Military Aviationaluminium

Used by US military for calculating aircraft performance + design allows interchangeable alternative data discs 

G. Felsenthal & Sons Inc.PT Pilot's ComputerPocket Aviationplastic

Micro dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B 

IWA (Ingenieurbuero fuer wirtschaftliches Arbeiten)15106Military Aviationplastic

Dead reckoning flight computer specifically calibrated for American Lockheed Corp.  F-104G Starfighter interceptor fighter bomber widely deployed during Cold War

Jepprsen & Co.CSG-8A Computer Aviationaluminium

Dead reckoning flight computer (CSB = Circular Slide Graphic) - a version of patented (US2097116) Dalton designed E6-B

Kane Aero Co.MK-6BAviationaluminium

Dead reckoning flight computer - a simpler/cheaper version of patented (US2097116) Dalton designed E6-B 

London Name Plate Mfg. Co. Ltd.Computer Dead Reckoning MK. 4AMilitary Aviationaluminium

Dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B + UK MoD black crow’s foot or pheon arrow on sheath

London Name Plate Mfg. Co. Ltd.Range and Endurance Computer MK. 1 6B/2652Desktop Military Aviationaluminium

Dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B for use by British RAF primarily for Meteor NF11 - NF14 jet aircraft + UK MoD black crow’s foot or pheon arrow on pouch

London Name Plate Mfg. Co. Ltd.Range and Endurance Computer MK. 1B 6B/2710Desktop Military Aviationaluminium

Dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B for use by British RAF primarily for Seahawk jet aircraft + UK MoD black crow’s foot or pheon arrow on pouch

Meierhofer (Hans)11054 Swiss NavigatorAviation - System Borneraluminium

Dead reckoning flight computer using “book construction" with multiple ring-bound nested discs patented (CH341321) by Armin Borner

MercatorComputor B-3Aviationaluminium

Early dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B + defunct NL maker (1946-1996) named after cartographer Gerard Kremer in 15rg century naming his mapping system Mercator  

SanTech Inc.FDF-26 Mark IXPocket Aviationplastic

Micro dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B 

Schiffmann Luftfahrtverlag GmbHSchiffmann-Dodd-NavigatorNavigatorplastic

Modern German-made plastic dead reckoning flight computer version of  patented (US2097116) Dalton designed E6-B - unusual “twin legs” design by Friederich Schiffmman & Dodd

SPZ - VoronezhNL-10mAviationwood/steel/celluloid veneers

Dead reckoning flight computer invented by W.G. Nemtschinow & L.S. Popow+ identical model made by another Russian factory - LFAI ​

Unknownкнп-57Aviation poly-slide(2)plastic

Russian-made dead reckoning flight computer equivalent to classic Dalton designed American E6-B

Weems System of NavigationDalton Dead Reckoning Computor E-6BAvaitionaluminium

Early dead reckoning flight computer version of patented (US2097116) Dalton designed E6-B + US maker founded in 1928 merged with German maker C. Plath in 1953 to be come Weems & Plath. r