Helicopter is a fun but complex sign. Make a horizontal number 3 sign with your non-dominant hand, with palm facing your body, and thumb sticking up. Then cover it with your open, dominant hand creating a movement that mimics blades.
What is the ASL sign for airplane?
To sign airplane, take your outstretched hand, and tuck in your middle and ring fingers. Then move your hand away from your body a short distance, as if flying, bobbing it back and forth a couple of times. If you move your hand a bit further up and out, slightly above your head, that's already the sign for fly.
What is horse ASL?
ASL: "horse" The sign for "horse" is made by forming the letter "u" (or "h") with your right hand. Place your thumb on your right temple, or a little higher. Bend and unbend your first two fingers a couple times.