It has been a while since we’ve heard much news of the Low-Density Supersonic Decelerator or LDSD.
The image above shows the LDSD flight-test vehicle in a NASA-JPL clean room. The LDSD is sitting on a spin table that was used to spin the 4.6 meter / 15 foot and 3,175 kg / 7,000 lb test vehicle to 30 rpm to check its balance. The LDSD is about to be flown to a naval facility in Kauai, Hawaii for further testing.
The June tests will involve lifting the LDSD by balloon to 36 km / 120,000 feet over the Pacific. At altitude the LDSD will be released and a booster rocket will ignite and carry it to 55 km / 180,000 feet and accelerating it to Mach 4 in the process. At the final altitude a series of automated tests of two new technologies will begin.
The supersonic inflatable aerodynamic decelerator also known at SAID-R, an inflatable doughnut will deploy. The result will be a larger vehicle with more drag that will slow the vehicle from about Mach 3.8 to Mach 2.5 when the worlds largest supersonic parachute ever will deploy. The parachute should enable a controlled landing in the Pacific Ocean 45 minutes later.
The new technologies tested should enable large payloads to be landed on Mars and other planets with atmoshpheres and at higher altitudes.by