Skyhook is an armored transportation aircraft. It can take on board even the heavier T2 units and easily withstand light anti-air defenses. As a Heavy transport, it can also airlift LLTs, and other T1 towers with the Transportable (Heavy) feature.

Use it to deploy your forces right on the front, especially slower units like Sumos.

It's slower, but way more armored than its Armada counterpart.

Skyhooks can survive missile turrets and some mobile AA fire, but fighters, flak & heavier SAMs still kill them. Never overestimate their HP.