undercarriage

When pulling an aeroplane along, if possible, pull from the top of the undercarriage struts.

Then he touched a button and the pontoons were drawn up into the undercarriage of the craft.

The wheels of the undercarriage have a way of throwing up mud on to the lower surface.

The propeller is gone, and maybe the undercarriage is damaged some.

I busted a wing and wiped the undercarriage right off, and didn't get a scratch.