Sessions can get a bit noisy with multiple sound-equipped engines running. Therefore, crews may want to try out hand signals. Here are a couple variations.

Basic technique

• Go forward
  • Move hand up and down like karate chops away from you
• Controlled stop
  • Hands come together
• Slow controlled stop (inching)
  • Fingers come together
• Stop
  • Hold up closed hand with palm facing engineer
• You’re coupled up
  • Make a closed fist and shake once
• Back-up (reverse)
  • Beckon toward self with circular motion