Is a dive with 1.5 somersaults and 5 twists possible?
Some sport scientists believe it is but that a different arm action would be required. The body would tilt to the point of being near horizontal at one point before untilting for entry into the water.
Read the study by WILLIAM TONG AND HOLGER R. DULLIN – A NEW TWISTING SOMERSAULT – 513XD (PDF)
related – Fred Yeaden – LEARNING HOW TO TWIST FAST (PDF)