What is the maximum nosewheel deflection with the tiller?

What is the maximum nosewheel deflection with the tiller?

• A. 70 Degrees
• B. 80 Degrees
• C. 90 Degrees
• D. 100 Degrees

Answer: (B)

The tiller controls nosewheel steering on the ground, and the system is designed with a fixed travel limit. For the CRJ-550, the nosewheel can be steered up to 80 degrees from straight ahead. This amount provides a tight enough turning radius for taxi operations while staying within the steering hardware’s mechanical stops and avoiding excessive tire scrub or loads on the nose gear. Deflecting more than 80 degrees isn’t possible in normal operation because the linkage and hydraulic actuators are physically limited. So the maximum practical deflection you’ll use with the tiller is 80 degrees. The other numbers would exceed the system’s actual travel capability.

The tiller controls nosewheel steering on the ground, and the system is designed with a fixed travel limit. For the CRJ-550, the nosewheel can be steered up to 80 degrees from straight ahead. This amount provides a tight enough turning radius for taxi operations while staying within the steering hardware’s mechanical stops and avoiding excessive tire scrub or loads on the nose gear. Deflecting more than 80 degrees isn’t possible in normal operation because the linkage and hydraulic actuators are physically limited. So the maximum practical deflection you’ll use with the tiller is 80 degrees. The other numbers would exceed the system’s actual travel capability.