Air Ship speed Limits, and constant studdering?

[jynx2501]

I had 4 basic engines and the ship was fine. Id hit a speed of 60km/h and everything was smooth.

I upgraded them to the upgraded engines and now if the speed gets anywhere close to 40km/h the ship constantly jolts and stops moving for a second as if I were hitting debris, which im not.

The design of the ship has not changed in anyway. I turned off two of my engines to lower the acceleration, but it still happens at slightly slower intervals.

Is this a glitch? Are the upgraded engines broken right now?

[Tachyon]

I've seen a couple of posts about this. One said the insect catchers were causing it because of where they were positioned, so maybe move them somewhere else. Another said that adding another balloon fixed it, so maybe their ship was getting over-heavy. I haven't looked at parts of my ship in ages, but maybe the upgraded engines are heavier?