Roberts Rocket Project Update – 2017-12-03

Robert has posted a new update as he works towards an all up static fire of his liquid-fuelled rocket.

The Vertical Static Test Structure is complete and passed the fit checks this weekend. It took a couple of tries to figure out the best way to install the strut and rocket without injury.

The setup looks pretty good, looking forward to seeing the hot fire.

MASA Liquid Engine Hot Fires

Video Cation: The liquid development engine was MASA’s first liquid bi-propellant motor and was created to act as a first step towards developing a full scale liquid engine. October 8th marked the team’s second time firing the engine. The team static fired a total of three times throughout the day and experimented with a different method of ignition on the third test.

The Michigan Aeronautical Science Association (MASA) is a student engineering project team at the University of Michigan. Learn more on our Facebook page:…
And our website:

No Nexø II Flight This Year

[Source: Copenhagen Suborbital’s ]

The Nexø II rocket remains grounded on land until summer of 2018, the board of Copenhagen Suborbitals has just decided.

Launching a rocket is a large-scale project. A lot of different parameters must be fulfilled in order for the Nexø II mission to be optimum, and this year it has simply not been possible due to both internal and external delays combined with bad weather conditions.

Next week was our last launch window but one of our stakeholders was not able to be there
during the launch and we couldn’t get the airspace cleared.
That’s why we have now finally decided to exercise due diligence around the project, hence postponing the launch of Nexø II for weather conditions again to be favorable.
The mission is still on, and we are launching Nexø II in the summer of 2018.
Until then, you can see the Nexø II rocket in the Copenhagen Suborbitals headquarter at Refshaleøen in Copenhagen.

Disappointing to read this, and is not the first time this has happened, Nexø I was delayed from 2015 to 2016. Being constrained to one season of the year with an ocean-based launch infrastructure does not really help the flight rate.

I do not doubt the team’s long-term commitment to putting a person into space but the pace will have to change to keep the general public interested for the long haul.

The below tweets sum it up. ( AA is/was Armadillo Aerospace)

Monash Aerospike

This deserved a post on its own.
I found a couple more video’s of this 3D printed aerospike online which go into a bit more detail.

Of note, the engine has multiple internal chambers, which in the future could be used for thrust vector control, as well as the regen cooled chamber, the spike is also cooled. The engine burns Methane and Gaseous Oxygen producing a thrust of 4kN or 1000lbf, the video below shows a burn time of 60sec.

More info on the project can be found here and here.

Building a Liquid Rocket Engine Test Stand

Video Caption: We (as students at UC San Diego) designed, built, and tested a rocket engine test stand that can be used to test various liquid rocket fuel mixtures. The test stand was brought to Friends of Amateur Rocketry in the Mojave Desert, California, where the static fire test was conducted. Our research team manufactured biofuel to test the performance against the industry standard (kerosene-based) RP-1.

A presentation of the work will be featured at the 15th Reinventing Space Conference, 2017.

Supervisor: Dr Steve Harrington
Assistant: Victor Gandarillas

Members of the team:
Harrison Box, Justin Laughlin, Trevor Irwin, Claude-Henry Djongoue, Zoe Warp, Irani Tinio, David Cruz, Joe McMinn, Roy Barnea, Kenny Wong, Nick Lopez, Andy Kieatiwong, Elizabeth Maher