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![]() USAF Test Pilot School Edwards AFB slide rule on crest |
![]() Test Pilot Student and Instructor at TPS School, Edwards AFB c1952-1954 |
![]() Test Pilot calculating flight profile at TPS School, Edwards AFB c1956 |

![]() REF Green Ship Length Computer |
Green Ship Length Computer Made in USA by Alex. E.S. Green during WWII For determining the size of Japanese ships, used in conjunction with the B-29 Gun sights. This slide rule was used to find the elusive Japanese battleship Yamato |
![]() REF Green Flight Engineers Computer |
Green Flight Engineers Computer Made in USA by Alex. E.S. Green during WWII. For maximizing the fuel range of B-29 Gun during long over-water missions. Created after the B-29 crew that found the Japanese fleet ran out of gas and had to land in Xian, China |

![]() Initials: USBR |
K&E Short Base Triangulation Rule US Army Made in U.S.A. for the US Army - 20" long Front Scale: Aux Angle "A", Mils [ Vertex Angle "t" mils, base "b" ] Range "R" Back Scale: [ Vertex Angle "t" mils, base "b" ] Cursor: 2 hairlines Meters/Yards |

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K&E M4 Graphical Firing Table Made in U.S.A. for the US Army, 1943 - 18-1/4" long Link - Clark McCoy Archive |

![]() C01 USSR Artillery Ranging |
USSR Soviet Artillery Ranging Made in USSR Front Scale tg, tg, 10K [Sin1-00, Sin0-10, 10K] Tables Archive Photo - No longer in collection |
![]() REF Japanese Gunnery Correction Slide Rule |
Japanese Gunnery Correction Slide Rule Made in Japan - 1936 pre WWII Front Scale tg, tg, 10K [Sin1-00, Sin0-10, 10K] Tables Archive - Image from Duke University, Gessler Collection A combination slide-rule/nomograph forcalculating ballistics corrections for temperature, barometric pressure, vertical and horizontal wind and muzzle velocities. Probably used in land-based Army operations in China. Weighing 16 pounds it measures 30x38x2.5 cm. It has a thick wooden base, thick bronze or copper dovetail slides (with matching serial numbers 26), and white brass faceplates. Three sliding scales are side-by-side, with a fourth sliding scale inserted in the center slide. |
![]() REF V2 Rocket Ballistic Ranging Slide Rule ![]() REF V2 Rocket at Pennemünde |
V2 Rocket Ballistic Ranging Slide Rule - c1942 Made in Germany - Heeresversuchsanstalt Peenemünde (Army Research Center Peenemünde) Scales: Interpretation provided by Dr. Klaus Schug, as follows: From distance from Pennemünde to London is about 950 KM or almost 600 miles. This would be the Maximale Reichweite = 950 KM. Its maximum vertical height was between 50 to 60 miles (80 to 95 KM) for long-range targets. This would be the senkrechte Steighöhe = say 90 KM. I. zur senkr Steighohe - Vertical height in meters. Using 9.0 or 90,000 meters = 90 KM as the heigth for reaching London from Peenemünde to London II. zur Maximale Reichweite - Using 90 KM (9x10*4) on scale I , then scale II would read about 7000 kg/m*2 = Ballistische belastung = 5163.2 lb.ft of load or stress on the rocket III. senkrechte Steighohe - Looks like this scale was only for very short distances up to 80 KM using the top of scale IV as the distance desired and then looking at III to see how high up the rocket had to go to reach the distances on the top of scale IV. IV. Maximale Reichweite - using this scale with III gave the maximum distance for the height in scale III. V. zur max. Reichw. - Using the bottom of the scale, scale V, to hit longer distances, say 950 KM to hit London, yields on scale V. VI. Brennschlussgeschwindigkeit - Yields a end of burn velocity 900 m/sec to reach London or a target at 950 KM. Note from ISRM curator, Mike Konshak, who is certified to build and fly high powered rockets: On the V-2 Rocket slide rule, all the scales are a variation of High vertical climb (maximum altitude), maximum range, burn closing speed. The V2 ballistic missile would shut off its motor at some point in its flight (burn closing speed) which was the maximum velocity at that point, which was determined by it s inertial guidance system. This would vary based on the desired range. At that point it went from the boost phase to the coast phase and begin slowing down due to parasitic drag and fell (still very fast) to its intended target. It was was not very accurate as it only went in the compass direction it was told to go. Full cutoff determined the range. This slide rule was not very different from other artillery calculators. Archive - Image from Pennemünde Museum |
![]() ISRM U.S. Military 76mm Howitzer Artillery Set |
U.S. Military 76mm Howitzer Artillery 2 SR set Made in USA - 1952 Scales: Range, Elevation, Drift, etc |
![]() ISRM Air Force Type MB-2A Air Navigation Computer |
Air Force Type MB-2A Air Navigation Computer Made in USA by JB Carroll Co. Chicago, c1949-1956 4.25 inch Diameter, Patent USA 2,528,518 (1950) and 2,767,919 (1956) Front Scale Cal. Air Speed, True Air Speed, Temp Rise, Mach Number (Pressure Altitude, Indicated Air Temp ) Back Scale Course, Reative Wind ( wind , Corrected alt, Minutes, Hours, Wind, Drift, altitude ) Original Owner Stationed at Souix City Air Base, Iowa. Donated by Jason McHenry, Tucson, Arizona
5.91MB PDFIncludes insert on atomic bomb survival. |
![]() S217 Soviet-LFAI Aviation Navigator's |
Soviet Aviation Navigator's Made in USSR Scales: The Corrected height, Height and speed on the device, Distance, Radiuses of a turn - distances - heights |
![]() S531 Soviet-LFAI Aviation Navigator's |
Soviet-LFAI Aviation Navigator's Made in USSR Scales: The Corrected height, Height and speed on the device, Distance, Radiuses of a turn - distances - heights |
![]() S552 Soviet-LFAI Artillery |
Soviet-LFAI Artillery Made in USSR Front Scale: 1:50000M, 1:25000M // β, N² [Sin, S&T, Tg, N ] NQ+1, L Back Scale: [ Sin, S&T, Tg, N ] Back: Position and spotter formulae Multiple hairlined Cursor |
![]() ISRM LFAI Soviet Military Dual Circular |
Soviet Military Dual Circular - 1957 Made in USSR by LFAI, Leningrad Left Scale: 10000 meter (Sin) Right Scale: 10000 meter (Tg) Back: Position and spotter formulae Actual application unknown at this time |
![]() S495 Lawrence 505_U.S. Navy |
Lawrence 505_U.S. Navy Made in USA - Peru, Ind. (Lawrence) Painted wood body Front Scale A [ B, CI, C ] D, K Back Slider [ S, L, T ] Back: Conversion Chart |
![]() S189 American Blueprint Military Rule |
American Blueprint Military Rule Made in USA - by K&E for American Blueprint (Military contractor) Front Scale Opposite Angle Deg, Mils [Apex Angle Mils, Deg, CI,C] D,A Back slider: [Tan, Sin-Tan, Tan ] Back: Geometry formulae
TM 6-240 Manual 3.35MB PdfField Artillery Military Slide Rule |
![]() ISRM Pickett Model 14 US Military |
Pickett Model 14 US Military Made in USA Front Scale LL1+/-, LL2+/-, A [ B, T, ST, S, K, C ] D, LL3+/-, LL4+/- Back Scale Opposite angle Degrees, Mils [ Apex angle, Tan, Sin-Tan, Sin, Base C ], Distance D, A |
![]() ISRM Union Instruments MIL-C-4318-B Type A-1 |
Union Instruments MIL-C-4318-B Type A-1 Made in USA by Pickett Front Scale L, A, DF [ CF, CIF, T, S, C ] D, DI, K Back scale Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length ] Altitude |
![]() P232 Pickett N700-T USAF Aerial Photo Type A-2 |
Pickett N700-T USAF Aerial Photo Type A-2 Made in USA for the USAF Front Scale L, A DF [ CF, CI, T, S, C ] D, DI, K Back Scale Ground Size Meters, Feet, Ground Speed, [Image size, Cycling Time, Focal Length] Altitude |
![]() ISRM USAF Type A-1 Aerial Photo |
USAF Type A-1 Aerial Photo - c1950 Made in USA for Astrodyne by Precision Scale Co. (founded by Art Eckel) Front Scale L, A, DF [ CF, CIF, T, S, C ] D, DI, K Back scale Ground Size, Ground Speed, [Image size, Cycling Time, Focal Length ] Altitude |
![]() REF Military Attack Computer |
Military Attack Computer Made in USA Front Scale Air Speed, Lead angle, Time, Distance, etc. Archive - Not in collection |