They are installed on a flat deck (no crown) that normally has a larger surface than a tensioned deck.

The mid section was a long nearly flat deck over the cargo holds only interrupted by 12 hatches fitted with telescoping type hatch covers.

It features a low-pitched dormered roof with broad eaves surrounding a flat deck.

Cabooses are small centre-cab designs with flat deck at both ends.

This results in the aircraft leaving the deck at a higher angle and elevation than on an aircraft carrier with a flat deck and catapults.