1) Somatogyral (3 types) – angular acceleration and deceleration
Leans – (Most common) in a slow roll the fluid in your ear settles and you feel you are level. When you level the wings you sense a roll in the opposite direction and lean in the direction of the original bank until the sensation subsides.
Graveyard Spiral – Same as the leans but you ignore the instruments thinking they are broke and place the aircraft in a bank all the way to the ground
Coriolis Illusion – Prolonged turns with rapid head movement cause a tumbling disorienting feeling
2) Somotogravic (2 types)– linear acceleration and deceleration
- Oculogravic – FWD acceleration cause head to go back sensing a nose high
- Elevator – (updraft) upward acceleration, eyes track with horizon down sensing a nose high attitude
Oculoagravic – (downdraft) downward acceleration, eyes track up sensing a nose low.