Attacking with a sword while in the airship accelerates it, and when spammed the ship can reach 100+ blocks per second. This doesn't seem to work with items or other tools (like axes) and the attack doesn't need to be knockback attacks to accelerate the ship.

From what I can observe each sword attack accelerates the airship by about 10m/s and spamming left click can stack the acceleration up.

I'm on Version 0.2.1 and I haven't tried replicating it in 0.3.0 or with other vehicles, like biplanes. I will update this when I find anything else worth noting.

Thanks for the report. This issue should be fixed in 0.3.0, it was indeed knockback being applied.

Thanks for the report. This issue should be fixed in 0.3.0, it was indeed knockback being applied.

Ah yeah I didn't read the 0.3.0 changelog, and I just found out an unenchanted sword doesn't speed the ship up.

I also tried replicating this in 0.3.0 and yeah, it's fixed. Thanks!