The Thunder Cruise is somewhat larger than most pop-pop boats; almost as large as the Rattandeep Titanic. It is similar in many respects to the Rattandeep Speed Boat but much larger and with more cosmetic detail, like the double deck superstructure.
It has a diaphragm type boiler over a typical candle holder / olive oil burner.
As acquired, it's condition was unused but "shop soiled". As can be seen in the video below, it has now been used, not to say overused. I think I might have damaged it.