Making boat 2 hull from plywood with engine 200cc

200cc 6.5hp engine.
The length of the boat is 4m, the boat is 1m2 wide and 35cm high.
When the boat was testing, unfortunately, the propeller hit the rock and deformed the propeller, so the boat did not achieve the desired speed.
Hope you guys understand and give me suggestions, I will fix and do better in the next videos!
Welcome to NASAT Channel!
I guarantee you won't be disappointed with the uploaded videos as there are some of the best videos that no one has done yet.
Thanks and hope you will enjoy and not be disappointed with your time spent watching my videos.
Support the channel by subscribing to see more great videos!
If you find it interesting, Like, Subscribe and comment on your questions and ideas, the channel will support and make great videos for you.