How to Launch Spacecraft Using Giant Cannons Instead of Rockets
A method for launching space vehicles into orbit using high-speed impulsive forces like cannons, precisely timed to rendezvous with existing satellites.
Patent Number
US 10427804
Status
Active
Filing Date
April 29, 2016
Grant Date
October 1, 2019
Expiration
~April 2036 (estimated)
Claims
19
Assignee
Quicklaunch Inc
Inventors
Harry E. Cartland
Citations
2 forward · 71 backward
What it covers
This patent describes a technique for launching a vehicle into space using an impulsive force—essentially a massive push or 'shot'—rather than a traditional multi-stage rocket. The method dictates that the vehicle must be launched in an easterly direction to leverage the Earth's rotation. The core of the invention is a precise timing mechanism: the launch must occur at a specific moment, calculated as approximately one-third of the vehicle's total 'fly-out time' before the target satellite passes over the launch site. This ensures the vehicle reaches its highest point (apogee) at the exact moment and location required to meet the target.
What it doesn't cover
- —Does not cover traditional rocket-based launches that use continuous thrust during ascent.
- —Does not cover launches in directions other than easterly or due east.
- —Does not cover orbital maneuvers that do not rely on the specific one-third fly-out time calculation for rendezvous.
- —Does not cover the mechanical design of the launcher itself, only the orbital trajectory and timing method.
The clever bit
The patent uses the vehicle's own flight time to solve the complex 'phasing' problem of rendezvous. By launching at exactly one-third of the fly-out time before the target passes overhead, the vehicle naturally arrives at the rendezvous point without requiring complex mid-flight corrections.
Why it matters
This patent addresses the high cost of space access by proposing a way to use kinetic energy launchers, such as light gas guns or electromagnetic rails. By calculating the exact timing needed to intercept a target, it provides a theoretical framework for 'gun-launched' cargo or small satellites. This is a significant departure from the chemical rocket paradigm that has dominated spaceflight since the 1950s.
Real-world examples
- 1.Light gas gun launch systems
- 2.Electromagnetic railgun space launch concepts
- 3.Kinetic energy delivery systems for orbital cargo
Generated by PatentBrief · Not legal advice · patentbrief.org
US 10427804 · 2026