AV-19 SkyHawk
From Halopedia, the Halo wiki
Crew: 2 - Pilot and Gunner Weight: Unknown Armament: 50mm Rotary Cannons Secondary: Scorpion Missiles
Summary
SkyHawks were older orbital jets located on major UNSC worlds. They were equipped with 4 50mm cannons, as well as Scorpion Anti Tank missiles. Several of these craft were located at Fairchild Field on Reach and one was dispatched by Colonel James Ackerson to attack the Master Chief and Cortana during their test of the MJOLNIR armor and its new shield technology in 2552.
The Skyhawk is a jump jet HTOL (horizontal take off and landing) air attack fighter. It is armed with a quad set of 50mm rotary cannons, and Scorpion Missiles that are capable of destroying tanks. It's ability to take off and land horizontally, like the Pelican, make it useful where landing zones have no runway.