What kind of performance can Polar Explorer calculate?
• Basic performance: • Speed – sink polar. • Speed – glide ratio. • Cross-country performance: • Speed-to-fly – rate of climb. • Speed-to-fly – rate of climb + glider sink rate (for direct use on a speed ring). • Rate of climb – average cross-country speed. • Updraft velocity – average cross-country speed. • Climb performance: • Updraft velocity – rate of climb. • Updraft velocity – optimum bank angle. • Updraft velocity – optimum circling speed. • Circling performance: • Circling radius – horizontal speed. • Circling radius – sink rate. • Circling radius – bank angle. • Lift coefficient versus drag coefficient curves: • CL – CD viscous for Re=1,000,000. • CL – CD viscous for Re that varies with CL. • CL – CD total for Re that varies with CL. • CL – CD induced.
