Program 902 for the Delta Glider IV is for use with Rush to the Moon scenario or for anytime your using the Velcro Rockets with the craft. for those that are having a hard time getting the drop tank DG off the runway and into orbit, this program will get you up in a ~190 km orbit with your craft weight of 34.5t. The last set of tanks should have around 500kg of fuel left so when using with Rush to the Moon scenario, your have a bit of extra fuel to help with that plane adjustment burn