The Walrus carried two Vickers K machine guns and could take bombs or Mark VIII depth charges, giving it options the lightly armed Seagull lacked. A one-hundred-pound bomb was of limited use against a submarine unless the aircraft surprised it on the surface. The aircraft's performance was modest: about 135 miles per hour at maximum speed and 92 at cruise, while its roughly 600-mile range translated into six and a half to seven hours aloft. That endurance defined the design's purpose as persistent eyes in the sky. A higher ceiling, greater size, and a 750-horsepower Bristol Pegasus completed the practical improvement over its predecessor.
Notable Point · 22:37-25:18
Walrus weapons, endurance, and patrol design
Weapons, a stronger engine, and six-to-seven-hour endurance made the Walrus a more credible patrol and anti-submarine aircraft than the Seagull.