Marijn
Active member
I am practicing reentries with the XR5. Most of the times, I end up with too little energy somewhere in front of the runway. I'd like to practice the landing anyway, so if this happens, I'll cheat by appling some throttle to make it to the runway.
But I am always stalling and crashing anyway. Even with 100% power applied. That cannot be right.
I noticed that the Eng ISP displayed by BurnTimeCalc MDF is falling. All the way to zero. It seems to fall with altitude. But that means that the engines will become less and less effective while losing altitide. Below 500 meters, even 100% power is not enough to maintain 70m/s of airspeed, so I will stall and crash.
I think this must be a serious bug. It's completely ruining my Orbiter experience so I hope someone can explain what's going on or how to get rid of this.
---------- Post added at 12:34 PM ---------- Previous post was at 11:45 AM ----------
Here's a clip. The Eng ISP is already way too low when the video starts. I am descending below 300 meters and try to stay airborne after that by pitching up and applying full power. But then the Eng ISP is so low there is no chance to avoid disaster anymore.
Edit: Removed the video from YT. It can be reproduced by setting 'CONFIG_OVERRIDE_MainFuelISP 1' (or CONFIG_OVERRIDE_MainFuelISP=1) in the default Ready for Takeoff to ISS scenario. 100% power does not make the vessel move.
Any suggestions on what might be going on here?
But I am always stalling and crashing anyway. Even with 100% power applied. That cannot be right.
I noticed that the Eng ISP displayed by BurnTimeCalc MDF is falling. All the way to zero. It seems to fall with altitude. But that means that the engines will become less and less effective while losing altitide. Below 500 meters, even 100% power is not enough to maintain 70m/s of airspeed, so I will stall and crash.
I think this must be a serious bug. It's completely ruining my Orbiter experience so I hope someone can explain what's going on or how to get rid of this.
---------- Post added at 12:34 PM ---------- Previous post was at 11:45 AM ----------
Here's a clip. The Eng ISP is already way too low when the video starts. I am descending below 300 meters and try to stay airborne after that by pitching up and applying full power. But then the Eng ISP is so low there is no chance to avoid disaster anymore.
Edit: Removed the video from YT. It can be reproduced by setting 'CONFIG_OVERRIDE_MainFuelISP 1' (or CONFIG_OVERRIDE_MainFuelISP=1) in the default Ready for Takeoff to ISS scenario. 100% power does not make the vessel move.
Any suggestions on what might be going on here?
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