Behind the main spar, the wings are covered in cloth.

He continued climbing up over the main spar and past the bunk.

News on the A-26 front is good, with the crack in the aircraft's main spar having now been repaired.

The lower main spar was found to have cracked.

As a rule the ribs are at right angles to both main and rear spars.

The main spars were burnt where the control cables had been melted away.

This caused the upper surfaces to "lift" from the main spar.

Steel piping was pulled from the depths and used as the main spars for the bridge.

Never attempt to adjust the angle by warping the main spar.

During the winter of 1995 the Lancaster was fitted with a new main spar to extend her flying life.