Hi Jim ,
Dont mean to by the smart on here but i thought i'd make a checklist for you , it never hurts.
Pre flight
[ ] Battery's of both airplane and transmitter charged.
[ ] Battery's connectors ok
[ ] Wing and struts all mounted properly and secure
[ ] Outerwing panels flush with main wing
[ ] Tail flush with backplate
[ ] All motors turn righ direction
[ ] Props are well fit on motors , no slipping on axle. (big prop , lots of torque)
[ ] All control surfaces move in the correct directon without any binding
[ ] EXPO dialed in to reduce senetivity around cente stick.
[ ] CG !
[ ] RANGE check
[ ] Float test , check for leaks , especially around the step vent system
Sea trials
[ ] do some taxien around and get used to the models apearance.
[ ] Make some accelerating runs advancing the throttle slowly and see how it comes on step
[ ] When on step reduce throlle to prevent any unwanted takeoff
[ ] let it taxi on step a while and make a few ''taxi by's '' and check how it sits on step
[ ] Check if wings keep level when on step
[ ] Check aileron sensitivity when the model is on step
[ ] Check how the model responds to elevator input when on step
[ ] Make som runs on step and see how extending the flap affects the nose attitude off the plane
[ ] Make some figure 8's etc with the model on its step and get used to how it reactes to all control inputs.
[ ] Taxi back to shore and go over the model again , checking for leaks , wing attchment etc
Maiden
[ ] EASE of mind
[ ]make sure all previous points are checked
[ ] take a look around and determen your takeoff patch
[ ] stick to the plan and taxi the plane to its takeoff position
[ ] SLOWLY advance throttle and lit the model gain speed , come on step and gently liftoff
[ ] climb to a save altitude
[ ] what am i doing , you probably done hundreds of maiden flights !
Stick to the plan and you will do fine , it annything is not to your likings better go home with the model intact.