I have finally gotten round to putting my catapult F-18 on a ship. The ship itself is very basic, i know, however, this build contains over 600 parts which really is pushing the boundaries of what's possible on my iPad. The activation groups and controls are somewhat similar to previous versions of the catapult, but with added ship controls. Activation group 1 controls the ship. Throttle for forward, yaw for steering. Group 2 + VTOL up raises the jet blast deflector. Group 2 + throttle for main aircraft engines. Group 3 for catapult launch, and group 4 for catapult release. Group 5 + VTOL lowers the flaps, and Group 6 + VTOL for arresting hook deployment. If any of these instructions are incorrect please let me know. I could do hardly any testing with this, because my game kept crashing. Also if any part of the design causes persistent problems, please let me know. Now that I am happy with my catapult, I'm going to look into ways of recovering the aircraft by realistic means, although I don't think it will be easy. If you have any suggestions for this, please let me know in the comments. Thank you.