Movement speed can be leveled and effects the speed it travels through the air. A few levels and some practice and the Fartbag and you will leave render distance of an enemy tribe chasing you before you land for air

If you wanna fly longer on these bad boys upgrade oxygen

They can inflate and then they can do three things, do a huge jump that will deflate them, float/glide, and do a knockback attack that is similar to the diplodocus' only attack. They can also seat more than one person at a time

Inhale to increase damage resistance, get a decent level saddle, back up slowly into turrets, tank all of the enemy's turrets