I’m coaching aerodynamics. I know the kids have 5 min to make 2 planes. My question is, if I have two kids as a team, can I have each of them make 1 plane in the 5 min, and use the plane from each kid as distance and time plane, respectively? Thanks!


As a team they can divide the building labor anyway they want. The event description clearly states they can have 2 tries at distance and 2 for flight time.
Teams will design, construct, and fly at least two paper airplanes. Two initial flights will be measured for distance. Two final flights will be measured for flight time.
They should know in advance what the plan is for a plane designed for distance and a planer designed for flight time.
One paper airplane should be designed to fly as far as possible. The other paper airplane should be designed to stay in the air as long as possible.

We do encourage them to work as a team to decide their strategy, having used scientific process to determine  the optimal designs.