Serial staging design results (cont.)

For 3 stages LEO to GEO, program result (see end slide) found the total rocket mass to be 1377 kg with total fuel taking 1007 kg. For 2 stages LEO to GEO, we saw that the total rocket mass was 1406 kg with fuel taking 1034 kg. Hence by adding one more stage we only save 27 kg of fuel, or about 2.5 %. This saving is not worth the extra complexity and cost of an additional stage. Hence will use only 2 stages for the LEO to GEO.
Next, the design of the earth to LEO will be shown. For this, use the rocket mass of 1406 kg as the payload for the design of earth to LEO rocket.

Next, the design of the earth to LEO will be shown. For this, use the rocket mass of 1406 kg as the payload for the design of earth to LEO rocket.