Fig. 1.
Artistic view of the future end-to-end European space transportation ecosystem (courtesy of ESA FLPP – future space transportation preparation).
Fig. 2.
Selected dimensions of IOSHEX: a) top view, b) side view.
Fig. 3.
Bipropellant 420 N thruster (developed by Łukasiewicz-ILOT) selected for the main propulsion of IOSHEX.
Fig. 4.
Monopropellant 1 N thruster (developed by Łukasiewicz-ILOT, under qualification) selected for the RCS of IOSHEX.
Table 1.
Propellant tank configurations
| Config. no. | Number of HTP tanks | Considered shape for HTP tank | Number of TMPDA tanks | Considered shape for TMPDA tank |
|---|---|---|---|---|
| 1 | 1 | Cylinder (short, wide), double half-ellipsoid | 1 | Sphere |
| 2 | 1 | 1 | Cylinder (short, wide), double half-ellipsoid | |
| 3 | 1 | 1 | Toroid | |
| 4 | 4 | Cylinder (long, narrow), double half-ellipsoid | 1 | Cylinder (long, narrow), double half-ellipsoid |
| 5 | 6 | 1 |
Fig. 5.
Single HTP tank configurations: a) cylindrical-ellipsoidal TMPDA tank, b) toroidal TMPDA tank.
Fig. 6.
Six HTP tank configuration: a) section view, b) top view.
Fig. 7.
Propulsion system architecture.
Fig. 8.
The arrangement of Reaction Control Thrusters.
Fig. 9.
Integrated propulsion system.
Fig. 10.
IOSHEX with the propulsion system concept: aft isometric view.