The motion parameter of the underwater glide vehicle, such as velocity, pitching angle and attack angle has definite fluctuate when the underwater glide vehicle change the glide mode
, and they would get stabilization at a definite time.
Then they went into glide mode
, which, fortunately for them, didn't prove as costly against these New Yorkers.
Energy used in the soar and glide mode
of flight for a hypothetical raptor, depending on its weight and wing area, is 10-40% of the energy used in powered flight.