
Standard Specification for Thrusters, Tunnel, Permanently Installed in Marine Vessels
NORMA vydána dne 1.7.2024
Označení normy: ASTM F841-19(2024)
Datum vydání normy: 1.7.2024
Počet stran: 6
Přibližná hmotnost: 18 g (0.04 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM
This specification supplies the general characteristics and requirements, and interface details of propeller-type, fixed-tunnel thruster units that are permanently installed in marine vessels or structures. Thrusters manufactured in accordance with this specification shall be identified by the following types and grades: Type I—fixed pitch; and Type II—controllable pitch; Grade 1—intermittent duty for docking and navigation; and Grade 2—continuous duty for stationkeeping or dynamic positioning. The thrusters shall meet the design, manufacturing, dimensional, and workmanship requirements specified herein.
Keywords:
fixed-tunnel thrusters, propeller-type thrusters,, ICS Number Code 47.020.70 (Navigation and control equipment)