Flight termination system for tethered aerial vehicles

Abstract

Aspects of the disclosure relate to flight termination systems for tethered aerial vehicles. For instance, a flight termination system for a tethered aerial vehicle including an envelope may include a tool and a tether. The tool may include a first piece configured for attachment to an interior surface of the envelope and including a cutting blade. The tool may also include a second piece configured for attachment to an exterior surface of the envelope. The tether may be attached to the first piece such that when in use, a force on the tether causes the tool to cut an opening into the envelope.

1 . A flight termination system for a tethered aerial vehicle including an envelope, the system comprising:
 a tool including a first piece configured for attachment to an interior surface of the envelope, the first piece further including a cutting blade, and the tool further including a second piece configured for attachment to an exterior surface of the envelope; and   a tether attached to the first piece such that when in use, a force on the tether causes the tool to cut an opening into the envelope.