Tuesday, March 3, 2020

Amazon's Modern Take on the Trebuchet

Amazon has patented a launch system that looks somewhat like a modern version of a trebuchet.

Amazon Whip Launch System
Amazon "Whip" Launch System

The patent is entitled: Energy-efficient launch system for aerial vehicles

The application says:
An energy-efficient launch system that utilizes the principles of whip dynamics to launch payloads at high speeds is described. The launch system may include a marine vehicle having an onboard power source. A tapered, superconducting cable may be retractably connected to the marine vehicle via a winch and electrically connected to the power source. One or more aerial vehicles may be coupled to and receive power via the cable. To launch a payload at the end of the cable, the marine vehicle, winch, and/or aerial vehicles may be operated in coordination to create, propagate, and accelerate a whip waveform along the cable toward the payload...
Existing methods of launching aerial vehicles generally rely on energy-inefficient processes. For example, in order to launch a payload at high speed, conventional processes utilize fuel, e.g., rocket fuel, to launch aerial vehicles. In addition, the fuel must be carried by the aerial vehicle that is being launched, thereby increasing the weight of the aerial vehicle and requiring correspondingly more energy to complete such a launch. Accordingly, it may be desirous to launch aerial vehicles and/or their payloads at high speed using energy-efficient, controlled and repeatable processes.
reference:
Geekwire.com:
Whip it good! Amazon patents a launch system for snapping payloads into the air — or even into orbit