11. Although capable of the car has rear wheel braking only. 12. Accumulators on the wheel brakes performed as backups to the hydraulics, providing minimal braking. 13. These systems rely on selective wheel braking , which depends in turn on road contact. 14. Drogue parachutes were used in addition to conventional wheel brakes . 15. But his rear wheel brakes appeared to jam during the climb and he slipped back. 16. The flaps, landing gear, wheel brakes and air brakes are powered by a hydraulic system. 17. The cars were delivered with wide low-pressure " Balloon " tyres, and four wheel brakes . 18. Four-wheel brakes with mechanical servo were introduced in 1925. 19. By 1926, the engine remained unchanged, and the cars were now equipped with four-wheel brakes . 20. It was the first Audi with four-wheel brakes .
