Martian artillery is primitive by modern standards: Heavy and unwieldy. But they have an advantage we do not have…. Liftwood. They don’t need to drag heavy guns through sand and rocky terrain, they can just pull it with no problems.
The gun carrier is a simple platform fitted with liftwood, operated by a trimsman who hovers the gun 6 or so feet above the ground. It can then be pulled by whatever creatures or troops you have handy. It won’t get bogged down or break axles, and it’s less tiring for those hauling it.
Because it’s only hovering at a low altitude, and carrying a comparitively light load, it can be made using low-quality, scrap, or past-it’s-best liftwood, and the trimsman doesn’t need to be awfully skilled.
For best stability, the gun should be in a rigid frame, but they can also be hung from ropes.
Of course the same concept can be used for carrying freight, or for making smooth-riding carriages.
It’s not supposed to be a cheap flying gun-platform, or a piece of game-beating technology, more a bit of local colour.
It could also be a ‘Flight of the Phoenix’ plot point, where stranded travelers build a ‘life raft’ from bits of a crashed flyer and hope the wind will blow them to safety, barely skimming the ground.