cat5niper

Do you know where I can find the exact equation for lift force - speed? To optimise the design I need to calculate the minimum amount of wing area required and ideally the drag to calculate the engines - drag needed.

I am looking for both general design advice and have some specific questions about very large SSTO design. Firstly are there any resources available for how aerodynamic drag is calculated within kerbal space program, or calculations for lift profile/forces of wing types/areas etc? Is there a way to reduce drag of attached wing pieces at high speeds like IRL such as sweeping wings or telescoping wings or is this not modelled in kerbal? Do any wing pieces provide better a better lift/drag ratio? Does anyone have any previous designs I can look at for stable flying planes of mass higher than 300 tons?

It's 2 2.5m short tanks containing between 30-50 part clipped tanks inside each. Zooming the camera inside the parts is near impossible compared to setting some numbers in the craft file to 0. I also don't want to reconstruct it as balancing it took 6-8 hours, I really just need to know how to manually edit fuel values in the craft file.

I have built a craft that took ages to precisely balance (no SAS challenge) however I need to remove fuel from parts which are hidden by part clipping. How do I edit the craft file to empty liquid fuel and ore tanks?