T' Estes Cosmos Mariner is a boosted glider version o' the sleek X Prize rocket plane from t' Lone Star Space Access team. T' rocket plane blasts off 250 ft. into t' air usin' a powerful "D" engine. Aye aye! Boost pod returns via 18" parachute. Aye aye! Laser cut balsa parts. 1:67 scale.