Thanks for the extremely useful videos, guys :thumbup: I hadn't seen such a clear version of either.
I'm just looking for any and all info about the reentry and landing.
Very useful to see that "terminal velocity" is around 70m/s - I'm surprised it's that low, but that is indeed close to what I'm getting in Orbiter using airfoils sized to the cross section area of hull, wings, etc.
I've implemented vertical/ horizontal airfoils for the hull, and horizontal airfoils for the canards and wings, sized and positioned as realistically as I can, equally balanced around CoG. The aerofoil size and position is set according to the angle of the wing/canard - maximum deflection is 60deg, so that is a 50% reduction in effective area. Seems to steer OK! Yaw torque is a fudge, using a proportion of current drag.
Lift/Drag is about 1/2 at 45deg AoA, which is better than I used previously with the Dragon capsule or Falcon booster, and reflects francisdrake's graph data.
RCS is now more Shuttle style, and mounted above centreline, 9000N each which I think is equivalent to two Shuttle RCS engines.
RCS is switched off while main engines are active, control is by main engine gimballing.
If OH is working, I might upload a trial version soon.
Cheers,
Brian
I'm just looking for any and all info about the reentry and landing.
Very useful to see that "terminal velocity" is around 70m/s - I'm surprised it's that low, but that is indeed close to what I'm getting in Orbiter using airfoils sized to the cross section area of hull, wings, etc.
I've implemented vertical/ horizontal airfoils for the hull, and horizontal airfoils for the canards and wings, sized and positioned as realistically as I can, equally balanced around CoG. The aerofoil size and position is set according to the angle of the wing/canard - maximum deflection is 60deg, so that is a 50% reduction in effective area. Seems to steer OK! Yaw torque is a fudge, using a proportion of current drag.
Lift/Drag is about 1/2 at 45deg AoA, which is better than I used previously with the Dragon capsule or Falcon booster, and reflects francisdrake's graph data.
RCS is now more Shuttle style, and mounted above centreline, 9000N each which I think is equivalent to two Shuttle RCS engines.
RCS is switched off while main engines are active, control is by main engine gimballing.
If OH is working, I might upload a trial version soon.
Cheers,
Brian