The true pre-flight should start before you leave for the field. Mamy times I have arrived at the field and started to get setup only to find that I left the transmitter of batteries on the floor in the hanger
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The worst error was to hurry to the field, (I woke up late), and left the wing of the model I wanted to maiden leaning up against the hanger floor.
My first steps on my pre-flight check list are TBA. (Transmitter, Batteries, Aircraft).
The next step is Caution or Careful. This refers to loading the car or trailer making sure that the planes are loaded carefully and so that they suffer no damage and cannot be thrown around if I am required to stop suddenly.
Last step in the initial part of the pre-flight is concentrate. Upon arrival at the field I do not let anything stop me from unpacking carefully and placing the aircraft down carefully. I do not stand there talking whilst holding my planes. I have seen a number of planes be dropped or even knocked from peoples hand in a crowded pit area especially when there is something unusual occurring like a runaway plane, fire or even "punch up". When my planes are unloaded and safe I then do the rounds and catch up on the gossip.
The remaining pre-flight steps are recorded in the aforementioned other thread.
Have fun!