Stormworks: Build and Rescue

Stormworks: Build and Rescue

D.S.V. Akvanat (Advanced Diving Support Vessel) w/ Diving Bell + 2x Minisubs + ROV + Heli
RPM Jumping Back and Forth
RPM jumps from 400-600 and speed only goes to 18-19 causing the ship to sort of jump, not sure if im doing something wrong when using the ship, this just started happening.