A tiller or wheel stern controls the steering runner. Rudders can be rotated by a tiller, manual wheels, or electro-hydraulic systems. A tiller or till is a lever used to steer a vehicle. Modern Unlimited boards have rudders that are steered by a tiller between the paddler's feet. Steering may be either by tiller or wheel. The early cars had tiller steering. This period also saw the implementation of center-mounted rudders, controlled with a tiller. For steering, a long tiller was used. While Hichens remained at the tiller, Fleet and Peuchen managed the oars. The rotary tiller is a principal example. During 1914, both Best and Holt introduced models without the front "tiller" or steering wheel. The captain attempted to correct that drift with the use of the nosewheel tiller. Mobility scooters are usually fitted with a tiller. Some are worked into the soil with a tiller before planting. Meanwhile the bottom half of the tiller contained the trigger.