July 2021

Horizontal Test Firing at Yuma Proving Ground The Green Launch Team completed another series of successful shots at Yuma Proving Ground (YPG) on July 14 and 15. Braving the summer heat were John Hunter, Eric Robinson, Rob Fryer, and Ray Tinker. Each shot involved...

March 2021

Despite the gap in these monthly updates, Green Launch has not been idle. In 2020, the launch tube was relocated within Yuma Proving Ground.  The new location allows for both horizontal and vertical shots. New design incorporated for pressure containment within the...

August 2019

Horizontal Test Firing at Yuma Proving Ground The Green Launch Team completed another series of successful shots at Yuma Proving Ground (YPG) during June and July.  Each shot involved different parameters of gas charge pressures, release peak pressures, vehicle...

May 2018

ACCOMPLISHMENTS Horizontal Test Firing at Yuma Proving Ground The Green Launch team completed another series of four successful shots at Yuma Proving Ground (YPG) during the week of April 23.  Two shots per day were achieved using YPG personnel and our team. Gas...

March 2018

ACCOMPLISHMENTS Horizontal Test Firing at Yuma Proving Ground Green Launch has been busy with a series of 12 successful shots which began in December and continued through the first part of March.  Each shot involved different parameters of gas charge pressures,...

September 2017

ACCOMPLISHMENTS Presentation at Mars Society Annual Convention The Green Launch (GL) core team (John Hunter, Eric Robinson, Rob Fryer, and Don Whitney all attended this held at University of California, Irvine on September    We presented the overview concept and...

June 2017

ACCOMPLISHMENTS Pneumatic Components Received Phil Sluter of TriAxial Design and John Hunter refined and optimized the tubing and fittings to control the gas loading of the gun and safe firing. Firm order was placed on June 2 for the major components. Essentially all...

May 2017

ACCOMPLISHMENTS Yuma Test Preparations John Hunter and Don Whitney made another 3-day trip to YPG starting May 1 to coordinate several aspects of preparation for a series of horizontal test shots this summer: • Meeting with YPG staff to discuss our test plans and...