TY  - JOUR
PY  - 1995//
TI  - Ballistocraft: a novel facility for microgravity research
JO  - Esa bulletin. Bulletin ASE
A1  - Mesland, D.
A1  - Paris, D.
A1  - Huijser, R.
A1  - Lammertse, P.
A1  - Postema, R.
SP  - 7 p.
EP  - 7 p.
VL  - 82
IS  - 
N2  - One of ESA's aims is to provide the microgravity research community with various microgravity exposure facilities. Those facilities include drop towers, sounding rockets, and parabolic flights on board aircraft, in addition to orbital spacecraft. Microgravity flights are usually achieved using large aircraft like the French 'Caravelle' that offer a large payload volume and where a person can be present to perform the experiments and to participate as a human test-subject. However, the microgravity community is also very interested in a flexible, complementary facility that would allow frequent and repetitive exposure to microgravity for a laboratory-type of payload. ESA has therefore undertaken a study of the potential of using a 'ballistocraft', a small unmanned aircraft, to provide a low-cost facility for short-duration (30-40 seconds) microgravity experimentation. Fokker Space & Systems performed the study under an ESA contract, supported by Dutch national funding. To assess the ballistocraft, a simple breadboard of the facility was built and flight tests were performed. The ability of the on-board controller to achieve automated parabolic flights was demonstrated, and the performance of the controller in one-g level flights, and in flights with both zero-g and partial-g setpoints, was evaluated. The partial-g flights are a unique and valuable feature of the facility.<p /> <p>Language: en</p>
LA  - en
SN  - 0376-4265
UR  - http://dx.doi.org/
ID  - ref1
ER  -