Here is something else to chew on.  It deals with CHECKING IT OUT.  In full scale flying, checklists are used to ensure that pilots conduct a review of aircraft systems and or procedures prior to each flight.  Using them in this manner almost always guarantees an air worthy aircraft, in that anything deemed as not meeting standards during preflight (general terms) either gets fixed or the airplane doesn't go in the air.  How nice it would be if modelers followed the same path and taught similar values to newcomers.

There is a list from the Chester County (PA) RC Club. Think of the "Preflight Checklist" as a walk around check as done with full-scale aircraft:

Propeller

• Nicks or cracks
• Tight prop nut, spinner, or hub

• Engine mount tight
• Muffler mount tight
• Secure throttle hook up

• Check fuel line for splits and holes
• Foam used around tanks is dry

• Nose wheel and main gear secure
• Axles and wheel collars secure
• Nose wheel steering hookup

• Cracks or breaks
• Tail section secure to fuselage
• Wing dowels or bolts secure
• Pushrod slop/keepers

• Cracks or breaks
• Hinges, clevises and horns
• Pushrod slop/keepers

• Cracks or breaks
• Hinges, clevises and horns
• Pushrod slop/keepers

• Cracks or breaks, especially center section
• Hinges
• Aileron and servo hookups secure
• Aileron servo tight

• No loose servo/battery wires
• Battery pack secure
• Servos and servo rail secure to fuselage
• Clevises and servo wheels/arms secure

• Bubbles around glow plug, head bolts, muffler, needle valve
• Bubbles in fuel line
• Control surfaces move smoothly at full throttle...glitches??