Recent content by Ares

Nice idea but the problem with a scramjet is that they cannot start from rest whereas Skylon can.

Is this any good? I think it will work if you include the header containing the SM class interface in the main vessel, and either "param" is a public member of the SM class or the SM class is a friend of the main vessel. // Setup VESSELSTATUS struct for new vessel with required base class...

Hi, I was struggling with something similar a while back. Do you want to set parameters for the base VESSEL class or custom parameters specific to your derived class? If it's the former I guess you can send them in the VESSELSTATUS struct you use in your call to oapiCreateVessel. If it's the...

It's a bit better than this in reality because taking 20% of the Earth also reduces it's radius. You can get closer to the centre so the gravitational acceleration is higher than just 0.2g, more like 0.6g (assuming the original Earth and the 20% chunk of Earth are the same density). Mars has...

Hi Will, If I remember this correctly, you treat the coordinates and their derivatives as separate entities in the Euler-Lagrange equation. So (*=dot): dL/dx* = mx* dL/dx = 0 mx** = 0 Then: S = INTEGRAL (L dt) ta < t < tb

Thanks for the PM! Does that assume that the rocket is travelling vertically then?

Take a look at: http://en.wikipedia.org/wiki/Gravity_drag and http://www.projectrho.com/public_html/rocket/mission.php under the heading 'Drag'. On the Atomic Rockets link, there is the equation: delta_vd = delta_esc * g / a, where delta_vd is the additional dv required to compensate for...

Hi, thanks for sharing this essay! I think your problem is R_g = R to the power of, not multiplied by, ((a+g)/a). So R_g = 20 ^ 1.2 = 36.

Hello orbiter! :tiphat: After playing around with orbiter on and off for a while, I’ve decided to try to create my own vessel. My mesh is a long tether with an engine at either end, along which the hab module slides. Kind of like a bead on a string. The hab module consists of two...