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ORBITER-FORUM will be temporarily closed at 2026-07-23 18:00 UTC while we complete some OF maintenance tasks. The amount of downtime is expected to take up to one hour, but probably less.
Last weekend we welcomed our new dual seat high performance glider, Sierra Hotel, to our club. It's a Duo Discus XLT with some nice options. Isn't this aircraft just sheer beauty?
A feature new to me are the 'flaps' which are extended when pulling the speed brakes. So these are...
You can save a bit of fuel by activating the airspeed hold autopilot right after take-off. It will then throttle down a bit. Then turn towards your launch heading and disengage the autopilot and throttle up to the max. Or leave the ap on. When you pitch up further, it will also throttle up to...
Our new flagship under construction at Schempp-Hirth Flugzeugbau in Germany. We did choose for the proven concept of a
combustion engine (which folds out of the fuselage). We may sell it in the future when FES (Front Electric Sustainer) become available for this type...
I think the scram doors are exclusive to the DG-XR1. You can see the button in the screenshot. If you haven't done so, I suggest you download this add-on for practicing.
Scram engines only work in a certain range of dynamic pressure. They won't do anything if your airspeed is zero before...
Docking two XR5's in the same way results in this (the ship in the foreground is oriented prograde)
Can you compare the port orientation of the Starship/Tanker with the one in the XR5?
Using the XR5, PursuitMFD can do the docking. The Tanker is in Prograde orientation. The nose is pointing backwards as well compared to the first screenshot in the previous post. But unlike Tanker_2, the XR5 is pointing the top towards Tanker_1.
Not sure what that could mean though. I'll try...
PursuitMFD can handle attitude. But the problem is, PursuitMFD will bring pitch, yaw and roll to 0. But that doesn't give the desired orientation. This is what happens then:
PursuitMFD is in docking relative mode and pitch, yaw and roll are zero'd. (Also, rZ=29.09 seems offset by 10 because pZ...
Allrighty. In a single take: Launching two Tankers twelve seconds apart. Catching both boosters. Tanker_1 goes into an 200x220km orbit, Tanker_2 into 200x202km and therefore catches up. Then aligning Tanker_2 with a small anti-normal plane change at the ascending node shortly after both ships...
It would be practical if you could select a 'From' tank, being either the main-, reserve- or payload fuel tank. That would allow for a scenario where the Starship only has do dock once.
Ok. I was able to transfer fuel into the main tank now. And also from Tanker_1 payload fuel into Tanker_2 payload fuel and from there back to Tanker_1 main fuel.
I see now the the max payload fuel is 170000. Then there's no issue I think with that.
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