@lazyglobal off.
wait until ship:unpacked.
lock throttle to 1.0.

local sustainer is ship:partsdubbed("ROE-Aerobee")[0].
//local tim is ship:partsdubbed("TinyTim").
local ks18 is ship:partsdubbed("ROE-25KS18000").
local nike is ship:partsdubbed("ROE-NikeM5E1").
local booster is choose nike[0] if ks18:empty else ks18[0].

stage.
wait until stage:ready.
wait until sustainer:thrust > booster:thrust.
stage.

wait until ship:verticalspeed < 0 and ship:altitude < 75000.
stage.