porpoising

Get up on the plane faster & help prevent 'boat porpoising'.

"Porpoising" was the term for a series of dives and climbs.

As the head appears at the surface with a 'porpoising' roll you will find your heart in your mouth.

In pinnipeds, two types of porpoising have been identified.

Porpoising becomes more efficient after the animal has reached an underwater speed of 5-3 m/s.

Porpoising is a term that was commonly used to describe a particular fault encountered in ground effect racing cars.

The large wing area was employed to keep the stall speed low to avoid porpoising problems while conducting water operations.

Porpoising is therefore a result of high speed swimming which cetaceans use for important pursuit and escape activities.

Predicted minimum porpoising speeds for S. humboldti are significantly less than observed values.

Fish can be seen porpoising, taking the suspended caddis just beneath the surface and breaking the water with their backs as they do so.

While swimming, penguins will leap in shallow arcs above the surface of the water, a practice called porpoising.

At low porpoising speeds time in air is low and may not be sufficient to permit efficient breathing.

Well, actually" "And the plane started porpoising, beat hell out of the passengers, and killed three.

For example, dolphins may be seen porpoising away from their main predator, sharks or the direction of incoming boats to avoid collision.

It was designed to reduce porpoising and water spray being thrown into the crew seats and propeller.

Porpoising may minimize energy expended for ventilation.

Peales and Commersons dolphins (known locally as “puffing pigs”) are regularly seen porpoising in the surf.

It set off in the morning to the trials, but on the take-off run, baulked by a small boat, the aircraft began porpoising and was wrecked.

Lack of elevator control is sometimes problematic if the phugoid oscillation isn't well-damped leading to unmanageable "porpoising".

It exhibits at least six marine terraces; evidence of repeated tectonic uplift and subsidence (so called porpoising).

If these were oscillations in pitch the aircraft will just continue 'porpoising' - if there were no other disturbances and the pilot did not intervene.

Porpoising, also known as running, refers to the high speed surface behaviour of small cetaceans where long jumps are alternated with swimming close to the surface.

Other reasons for dolphins and porpoises performing porpoising include orientation, social displays, fighting, non-verbal communication, entertainment and attempting to dislodge parasites.

ANT0915-03: Porpoising Adelie Penguins, Pygoscelis adeliae, in the fog at Franklin Island.

Although porpoising is a useful product of rapid swimming a lot of variation seen in the behaviour cannot be explained by this cause alone; it has likely evolved to provide other functions.