The first of these objections was not fully met until firing through the airscrew was introduced; the second was for a long time an accepted idea.

The machine gun soon followed, but its use in tractor machines was impracticable on account of the danger of hitting the airscrew.

They planed down at once, and landed in a small field, finishing up in a wood, where they damaged their undercarriage, wings, and airscrew.

It took the air near Berlin on the 3rd of November 1897, but something went wrong with the airscrew belts, and it was seriously damaged in its hasty descent.

The motive power was supplied by twisted strands of rubber which, as they untwisted, turned the airscrew.