Assertion: rifle's development | /r/HasProperty | single seater aircraft
Facets:
value: with mounted carbines
type: OTHER
Source sentences:
text: Early technological developments in fighter planes included safety strap systems that allowed the gunner to stand up and shoot all around; single seater aircraft with mounted carbines; deflector plates which diverted the direction of bullets that struck the propeller blades; and synchronized gear that finally allowed firing the machine gun through the propeller.