With the popularity of R/C boats increasing every season, RTR and Kit fans both are seeing an increase in models available. A RTR is an acronym for Ready to Run, meaning the boat is ready to run out of the box and there is no or very little mechanical work needed. Kits are also popular. A boat Kit requires assembly, sometimes the boat motor and servo are needed for completion and purchased separately. Another category is ARR, an acronym for Almost Ready to Run, with fewer building steps and material necessary for completion as compared to a full Kit.