Shanghai Flying Fish 1005

From Wiki

(Redirected from 上海计算尺厂 1005)
Jump to: navigation, search

上海计算尺厂 1005型飛魚测绘计算尺
Shanghai Slide Rule Factory Flying Fish 1005 Stadia Rule

  • Type: Stadia Duplex
  • Size: 10 Inches / 25 cm
  • Material: Plastic
  • Scales:
    • Front: K AI A [ B tgα sinα/tgα sinα C ] D 常数 DI P
    • Back: Ln-1 Ln0 Ln1 A [ B 1-cosα ½sin2α ] D lg 1/60
Obverse
Obverse
Reverse
Reverse

Stadia rule for surveying.

常数 literally means "common numbers". This scale is a useful set of constants relating to the shape and size of the earth.

With plastic hardcase and manual in Chinese.

Inspection tag
Inspection tag
Retrieved from "http://sliderule.mraiow.com/wiki/Shanghai_Flying_Fish_1005"
Personal tools