Table 4.3.4.3.3: Details of the Inter-stage Structure, 5 kg Payload Stage 1-2 Stage 2-3 Units Vertical Length 2.897 1.538 m 0.004 0.004 m Shell Thickness 24.245 5.292 kg Mass Slope Angle 10.000 10.000 deg 42 14 -- No. Stringers 0.005 0.003 m Stringer Thickness 0.020 0.020 m Stringer Depth 8 1 -- No. Ring Supports The slope of 10º was chosen because the closer to vertical they are, the more weight they can withstand. However, they still must provide the transition between the two different diameters. Choosing this low-angled slope gave us more efficient stringers with less material needed for each stringer. Ultimately, this reduced the cost of the stringers. The inter-stage skirt between stages one and two requires a minimum load bearing of 72.530 kN. The inter-stage skirt between stages two and three calls for a minimum load bearing capability of 3.352 kN. The skirts are reinforced with stringers and ring supports, detailed as follows.
Table 4.3.4.3.3: Details of the Inter-stage Structure, 5 kg Payload Stage 1-2 Stage 2-3 Units Vertical Length 2.897 1.538 m Shell Thickness 0.004 0.004 m Mass 24.245 5.292 kg Slope Angle 10.000 10.000 deg No. Stringers 42 14 -- Stringer Thickness 0.005 0.003 m Stringer Depth 0.020 0.020 m No. Ring Supports 8 1 -- The slope of 10º was chosen because the closer to vertical they are, the more weight they can withstand. However, they still must provide the transition between the two different diameters. Choosing this low-angled slope gave us more efficient stringers with less material needed for each stringer. Ultimately, this reduced the cost of the stringers. The inter-stage skirt between stages one and two requires a minimum load bearing of 72.530 kN. The inter-stage skirt between stages two and three calls for a minimum load bearing capability of 3.352 kN. The skirts are reinforced with stringers and ring supports, detailed as follows.