leaving dog in RV

We started out with crating our dog(55 pound amstaff) as she was crate trained at home. Start crate training at home. You want to make the crate their sanctuary. Comfy blankets, toys and give a treat, put the dog in and leave for a hour first then gradually lengthen it. We used a sturdy collapsible crate as our dog is big and a fixed one would take up way to much room. We don't crate our dog anymore and travel to 4 NHRA drag race events a year and leave her alone for hours at times. We leave water, vents open and make sure we do what we need to that she is cool and comfortable. Our dog just sleeps the whole time. My dog goes to work with me everyday and loves chilling out in her crate.