if you could design a higher pressure finer mist shower head. that would clean and give the relaxing feeling we are used to. you could sell them to all markets. as the water saving feature would benefit everyone.
a better endeavor would be to design a heat pump system that would take care of all heating and hot water requirements. along with all space cooling and food storage requirements. must be compact and energy efficient. preferably able to run off two golf cart batteries and solar panels.
a super light-thin, insulated structural panel would be another option to research.
carrying resources for comfort and the structure are the two worse energy offenders in a r.v. (weight and size of structure and comfort systems)โฆ
somewhere in the texas 'lost pines'
currently without rv.
'13' Ford Fusion
'83' Ford Ranger with a 2.2 Diesel.
'56' Ford F100, 4.6 32 valve v8, crown vic front suspension.
downsizing from a 1 ton diesel and a 32' trailer, to a 19-21' trailer for the '56'.