Marine Stainless Steel Three-Arm Protractor

• Stainless Steel 630mm Three Arm Sextant: Stainless Steel 630mm Three Arm Sextant Protractor
• Part: Navigation Tool
• Length of The Pointing Arm: 630mm
• Minimal Reading Number: 1 Minute of Arc
• Diameter of The Graduated Circle: 126.85mm
• Transport Package: Suitable for The Long Distance Transportation
• Model NO.: TS-630
• Specification: ABS, LR, BV, NK, DNV, RINA, RS, IRS, CCS
• Trademark: TRUST
• Origin: Jiangsu, China (Mainland)
• Production Capacity: 1000 Pieces Per Month

Product Description

 Usage:
 
1.Marine three-arm protractor cooperates with sextant to measure the marine position
2.Threepoint-two-angle method to measure the marine position on the chart
 
 
Structure:
 
  Three-arm protractor consists of cupreous graduated circle(180 degrees on the left and right), 3 surveyor's poles(fixed pole in the center and movable pole on the left and right), micro drum wheel and indicators, needle in the center and worm gear screw rod, etc.
 

Features:

1. Reasonable price and fine workmanship
2. Made of stainless steel
3. High accurancy
4. Weight: 1.5kg


Parameters:

 

Model	TS-630
Diameter of the graduated circle	126.8mm
Arm length	340mm
Length of connecting arm	290mm
Total length of the pointing arm	630mm
Minimal reading number	1min
Other	differential drum type