StacksVerified U.S. regulatory reference

46 CFR §113.37-5

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov
  1. (a)A vessel equipped with fixed pitch propellers must have on the navigating bridge and at the engineroom control station a propeller speed and direction indicator for each shaft.
  2. (b)A vessel equipped with controllable pitch propellers must have on the navigating bridge and at the engineroom control station a propeller speed and pitch position indicator for each shaft.