BURPG – Year in Review

The Boston University Rocket Propulsion Group have posted a new update of their last year of rocket development activities. As is known the team switched from a hybrid rocket motor to a liquid fueled engine to power their Starscraper suborbital rocket, the last few months has seen the team test this engine.

Lotus Engine (Credit: BURPG)

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BURPG Lotus Engine test

Caption: On February 20th 2016, BURPG successfully ignited the Lotus development engine, which will power the Starscraper rocket to space. The first ignition test resulted in a hard start, but after adjusted timing the second ignition was good.
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Video: LOTUS Cold Flow Tests

BURPG have posted a video and an update on their recent Lotus engine cold flow tests.

The system performed as planned with only a few simple to fix problems which will see them out cold flow testing again and then hot firing in the not to distant future.

You can read the full update here.

 

Lotus Cold Flow Tests

Boston University Rocket Propulsion Group have completed the first cold flow tests of their new Lotus liquid fuelled rocket engine, as shown in a recent facebook post the test was a success.

Lotus Engine Update

The students of Boston Univeristy Rocket Propulsion Group have been progressing well with their new Lotus engine development and posted the following pictures to their Facebook account.

Lotus in a cluster configuration is intended to replace the hybrid rocket motor of Starscraper, the groups suborbital capable rocket.
To read more about lotus, visit the team’s page, http://www.burocket.org/lotus/.

Boston University Rocket Propulsion Group : A liquid fuelled rocket engine for Starscraper

The team at Boston University Rocket Propulsion Group have switched gears since returning from summer break and are hard at working prepping their Starscraper rocket up for its maiden suborbital flight.
Part of the work that has been going on is to change Starscrapers hybrid rocket engine to a liquid fuelled rocket engine, quite the  design change, I asked the team via twitter the reason for the change and got the following response, “driven by costs, but an overall higher confidence in a proven liquid development engine’.

The engine named ‘Lotus’ will still utilize nitrous oxide as the oxidizer, and now isopropanol as the fuel, Starscraper will use two of these engines, each setup on gimbals to provide active stabilization control for its flight profile.

Work continues on the rocket with modifications to the airframe to include the new fuel tank and engine cluster structure.

The first parts for the new engine are coming off the lathe as shown below.
But to find out more on the ‘Lotus’ engine development, check out the teams site here and an updated Starscraper page here.