Tag Archives: Tenacity

Sierra Nevada starts installing thermal tiles on Tenacity

Capitalism in space: Sierra Nevada has received and started to install the thermal protection tiles for its first Dream Chaser reusable mini-shuttle, dubbed Tenacity.

The Thermal Protection System (TPS) tiles are one of the major hardware components used on Dream Chaser and cover nearly the entire craft to protect it from the heat of the sun and the plasma regime during atmospheric reentry. The tiles can withstand the scorching heat of 1,650°C (3,000°F) and prevent the vehicle from being destroyed during reentry.

Dream Chaser has approximately 2,000 TPS tile compared to the 24,000 tiles used on the Space Shuttle. Dream Chaser is about 1/4 the size of a Shuttle Orbiter. The tiles on Dream Chaser utilize a room temperature vulcanizing (RTV) silicone to keep the tiles bonded to the vehicle at all times. The silicone can withstand high temperatures, making it ideal for use. Each of the tiles is tested by a mechanism that pulls on each one, helping avoid issues of the tiles falling off, which happened early in the Space Shuttle Program.

The company notes that the vehicle remains on schedule for a 2021 launch on a ULA Vulcan rocket.

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Sierra Nevada names its first Dream Chaser spacecraft “Tenacity”

Capitalism in space: Sierra Nevada yesterday announced that it is giving the name “Tenacity” to its first Dream Chaser spacecraft.

Though the press release does not say so, this decision essentially confirms the company intention to build more Dream Chaser spacecraft, once this one proves itself in flight. And I would expect those later craft will be aimed at manned flight.

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