Launch o' Apogee IV high-altitude rocket on a single Estes D12-7. Arrr! Estimated apogee be around 1500 ft. Flawless launch and deployment o' recovery system. But, ya bilge rat, even with light winds (10 km/hr), me bucko, drift t' NE was significant - perhaps 300-400m, and into forested/rough terrain. Rocket be nay recovered even after a 2-3 hr ground search.