Using a Gamma III rocket with 6 strapped on boosters, I was able to land on Mun and return safely to Kerbin for $41,134 ($14,904 of which was recovered). Ominivore has the record for lowest total cost at $31,854 ($26,004 recovered). Jellycubes has the record for initial costs $13527 ($3972 recovered). The challenge is to beat one of those records. I want to acknowledge Szyzyg\'s tutorial
for my mission plan, and Trydyingtolive\'s tutorial
for influence on my lander design. They are both great videos, I urge you to check them out and give them a like. Mission Notes After ignition, the rocket wants to spin and tilt off vertical. I needed\' to make constant corrections. The winglets give lots of control, so I kept caps lock on. I burned straight up at 100% throttle until 9 of the 15 1st stage tanks were exhausted. After that I began a very slow rollover, letting off the throttle to keep at 200m/s. I time my roll over so that I am at 45degrees when Stage 1 is exhausted. It takes 3/4 of Stage 2 fuel to get into a 100km orbit, and then boost up to 3000 m/s to get my apogee up to 12,000km. I wait for Mun to capture me. My periapsis is already inside Mun, so I wait until he is 100km away, and then do a steady retrograde burn until my orbital path hits Mun roughly perpendicular. During the descent from 100km down to 5km I kept my speed at 400ms, retroburning when needed. At 10 kms I burned hard to slow my rate of descent. Stage 2 is exhausted and jettisoned. I was over dark terrain which is usually smooth, so I killed off lateral velocity. Touchdown 9h and 45 mins into the mission. To return to Kernin I blasted off at 45 degrees and boosted until my apoapsis was a long way from Mun, about 1/4 of the way back to Kerbin. Then I waited. As I waited My apoapsis stayed the same distance away from Mun, but swung slowly around so that it no longer pointed back at Kerbin. Not knowing quite what to do, I waited some more. I climbed away from Mun, and just about at apoapsis, Kerbin recaptured me. This left me in an Orbit with a perigee around 12,000km, and an apogee in deep space. Not wanting to risk my limited fuel, I waited some more. Mun and I completed our orbits in about the same time, and he briefly recaptured me again. This time He flung me more directly at Kerbin. When Kerbin recaptured me again It was a simple matter of retroburning until my perigee was inside the atmosphere. I jettisoned the final stage at about 40 km with 10% fuel remaining. Budget Lunar Stage $422 Mk16 Parachute $1600 Command Pod Mk 1 $975 TR-18A Stack Decoupler $550 1 FLT-2500 Fueltanks $950 LV-T45 Liquid Fuel Engine $3825 3 x TT-38K Radial Decoupler $1500 3x AV-R8 Winglet ---- $9822 Stage 2 ---- $975 TR-18A Stack Decoupler $2200 4x FLT-2500 Fueltanks $850 LV-T30 Liquid Fuel Engine --- $4025 ($2022 recovered) Stage 1 ---- $975 TR-18A Stack Decoupler $680 TVR-1180C Mk1 Stack Tri-coupler $8250 15 x FLT-2500 Fueltanks $2550 3x LV-T30 Liquid Fuel Engine $750 3x EAS-4 Strut Connector $1500 3x AV-R8 Winglet ---- $14405 =$28252 Gamma III Rocket Boosters ---- $2532 6 x Mk16 Parachute $2700 6 x RT-10 Boosters $7650 6 x TT-38K Radial Decoupler ---- $12882 (recovered)