What Schnellboot specifications meant in practice

The Schnellboot type under discussion carried three 20 mm cannon and one 37 mm weapon, a modest battery beside the British gunboats built to hunt these craft. Its published range was roughly 800 nautical miles at 30 knots, though sea state, speed, and operational demands could reduce what that figure meant in practice. Production reached roughly 200 boats, with uncertainty around the exact total, and many more planned hulls were cancelled. These catalogue figures become an operational comparison of firepower, endurance, and force availability.