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| | N1 Nuclear A |
 | | Considered for each case were nuclear engine designs Type A (18 tonnes thrust, 4.8 tonnes mass), AF (20 tonnes thrust, 3.25 tonnes mass), V (40 tonnes thrust, 18 tonnes mass), and V with a bioshield for use on manned flights (40 tonnes thrust, 25 tonnes mass). |
 | | Optimal stage size was 700 to 800 tonnes for the Type A engines and 1,500 to 2,000 tonnes for the type V engines (this resulted in a halaciously large number of nuclear engines by Western standards). |
 | | Use of the nuclear stage would result in a single N1 launch being able to launch a round-trip lunar landing (mass landed on lunar surface over 24 tonnes with return of a 5 tonne capsule to earth). |
| www.astronautix.com /lvs/n1nleara.htm (766 words) |
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