The practice field consisted of a separate airport which was located about 30 minutes from the competition site. This made practice convenient and two of the three aerobatic boxes at the airport were in the same orientation as the contest site.
There was an airport cafe at the practice field, which had electrical outlets and the airport manager even cooked us breakfast and lunch orders for the competitors which chose to eat at the practice site.
Our charging station consisted of the van battery. We kept the motor running to accomplish successful charges.