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NASA tests rotary wing space capsules


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#1    Saru

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Posted 28 October 2012 - 12:14 PM

NASA is investigating the possibility of using helicopter-style rotary blades for capsule re-entry.

Wired said:

NASA engineers are testing out a new version of an old idea: fitting rotary wings to a space capsule for a helicopter-like re-entry method.

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#2    27vet

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Posted 28 October 2012 - 05:36 PM

The challenge will be the re-entry phase and transition to subsonic speed during which the blades must be stowed. They will have to figure out a way to keep the blades out of the airflow and then deploy them when the craft is going slow enough. The flying part should be fairly straightforward.


#3    pallidin

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Posted 28 October 2012 - 06:33 PM

I see this as a million dollar experimental project which will be cut from further budget, due to lack of true viability.


#4    Waspie_Dwarf

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Posted 28 October 2012 - 07:33 PM

View Post27vet, on 28 October 2012 - 05:36 PM, said:

They will have to figure out a way to keep the blades out of the airflow and then deploy them when the craft is going slow enough.
As Saru's original post says, this is an old idea being reinvestigated. A company (now bankrupt) called Rotary Rocket solved many of these problems back in the '90s. The even made 3 test flights of their "Roton" vehicle in 1999.

Source: http://en.wikipedia....i/Rotary_Rocket

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#5    ROGER

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Posted 29 October 2012 - 09:09 AM

View PostWaspie_Dwarf, on 28 October 2012 - 07:33 PM, said:

As Saru's original post says, this is an old idea being reinvestigated. A company (now bankrupt) called Rotary Rocket solved many of these problems back in the '90s. The even made 3 test flights of their "Roton" vehicle in 1999.

Source: http://en.wikipedia....i/Rotary_Rocket

As I recall this prototype was very unstable and was very hard to see the ground to fly by sight. They also played with a Para-glider type parachute that showed promise , but was dropped as the leaders didn't like the idea. And didn't the Roton also have a capsule spin that was hard to control ? I'm working from memory here.

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