fore-topgallant mast

I can just catch sight of her fore-topgallant-mast against the sky, over the trees.

The flying jib-boom should be rigged fully out before the fore topgallant mast is swayed on end.

And near her was an exceedingly smart-looking brigantine, with main-topmast and fore topgallant-mast housed.

A new jib-boom had been rigged out, and the only spar wanting was the fore-topgallant-mast, which could be easily done without.

Saying this he sprung into the rigging and ascended to the fore-topgallant mast-head.