10 PRINT TAB(33);"LUNAR" 20 PRINT TAB(l5);"CREATIVE COMPUTING MORRISTOWN, NEW JERSEY" 25 PRINT:PRINT:PRINT 30 PRINT "THIS IS A COMPUTER SIMULATION OF AN APOLLO LUNAR" 40 PRINT "LANDING CAPSULE.": PRINT: PRINT 50 PRINT "THE ON-BOARD COMPUTER HAS FAILED (IT WAS MADE BY" 60 PRINT "XEROX) SO YOU HAVE TO LAND THE CAPSULE MANUALLY." 70 PRINT: PRINT "SET BURN RATE OF RETRO ROCKETS TO ANY VALUE BETWEEN" 80 PRINT "0 (FREE FALL) AND 200 (MAXIMUM BURN) POUNDS PER SECOND." 90 PRINT "SET NEW BURN RATE EVERY 10 SECONDS.": PRINT 100 PRINT "CAPSULE WEIGHT 32,500 LBS; FUEL WEIGHT 16,500 LBS." 110 PRINT: PRINT: PRINT: PRINT "GOOD LUCK" 120 L=0 130 PRINT: PRINT "SEC","MI + FT","MPH","LB FUEL","BURN RATE":PRINT 140 A=120:V=1:M=33000:N=16500:G=1E-03:Z=1.8 150 PRINT L,INT(A);INT(5280*(A-INT(A))),3600*V,M-N,:INPUT K:T=10 160 IF M-N<1E-03 THEN 240 170 IF T<1E-03 THEN 150 180 S=T: IF M>=N+S*K THEN 200 190 S=(M-N)/K 200 GOSUB 420: IF I<=O THEN 340 210 IF V<=0 THEN 230 220 IF J<0 THEN 370 230 GOSUB 330: GOTO 160 240 PRINT "FUEL OUT AT";L;"SECONDS":S=(-V+SQR(V*V+2*A*G))/G 250 V=V+G*S: L=L+S 260 W=3600*V: PRINT "ON MOON AT";L;"SECONDS - IMPACT VELOCITY";W;"MPH" 274 IF W<=1.2 THEN PRINT "PERFECT LANDING!": GOTO 440 280 IF W<=10 THEN PRINT "GOOD LANDING (COULD RE BETTER)":GOTO 440 282 IF W>60 THEN 300 284 PRINT "CRAFT DAMAGE... YOU'RE STRANDED HERE UNTIL A RESCUE" 286 PRINT "PARTY ARRIVES. HOPE YOU HAVE ENOUGH OXYGEN!" 288 GOTO 440 300 PRINT "SORRY THERE NERE NO SURVIVORS. YOU BLOW IT!" 310 PRINT "IN FACT, YOU BLASTED A NEW LUNAR CRATER";W*.227;"FEET DEEP!" 320 GOTO 440 330 L=L+S: T=T-S: M=M-S*K: A=I: V=J: RETURN 340 IF S<5E-03 THEN 260 350 D=V+SQR(V*V+2*A*(G-Z*K/M)):S=2*A/D 360 GOSUB 420: GOSUB 330: GOTO 340 370 W=(1-M*G/(Z*K))/2: S=M*V/(Z*K*(W+SQR(W*W+V/Z)))+.05:GOSUB 420 380 IF I<=0 THEN 340 390 GOSUB 330: IF J>0 THEN 160 400 IF V>0 THEN 370 410 GOTO 160 420 Q=S*K/M: J=V+G*S+Z*(-Q-Q*Q/2-Q^3/3-Q^4/4-Q^5/5) 430 I=A-G*S*S/2-V*S+Z*S*(Q/2+Q^2/6+Q^3/12+Q^4/20+Q^5/30):RETURN 440 PRINT:PRINT:PRINT:PRINT "TRY AGAIN??": GOTO 70