Jetex 50 speedboat jet propelled running

after acquiring this Jetex speedboat we decided to fuel it up and run it on a nice still bit of water, it took about 10-15 attempts to get it going, maybe because of old fuel pellets and old slightly cracked fuse wire but in the end it worked. considering it's around 70 years old it went fantastic... until the motor blew up!!! you can see it go in the video and a pic at the end (I have a spare) I have had the car running as well and there is a similar video I've uploaded.