“Before such vehicles like the Frogger and Maverick, any and all aspiring helicopter drivers had to stick with that old Mainliner off by the helipad no one uses. That was the reason why most missing people were never found again. If you want to relive that era, then you can get your own Mainliner, not that other guy’s Mainliner. And don’t worry, this one doesn’t have the potentially still in-use bird nest in the back.” - Description on Warstock: Cache & Carry
The Maibatsu Mainliner is a Multipurpose Helicopter that debuted in The Long Haul.
It is Primarily Based on a Eurocopter EC135 Helicopter.