Bug #5408
Updated by Squelch about 9 years ago
Fuel flow and therefore a thrust is reduced when conversion is happening. For Atomic Rocket Motor it's happening only when converting ore to liquid fuel.
h3. Reproduction
# Load the attached craft on the pad (Super Mega Ore Eater Static.craft)
# Open the context menus for the ISRU converter, Mk2 to 1.25 adapter and bottom NERV (As viewed on the pad, right hand outboard)
# Apply full throttle, and initiate the first stage (space)
# Toggle the converter on an off continuously for Liquid Fuel conversion during the test.
# Monitor thrust of NERV and fuel level of adapter.
h3. Expected:
Fuel flow and thrust is normal.
h3. Result/Observed:
Fuel flow and thrust is reduced.
On the fist two screenshots you can see fuel flow is down to 0.00164 on some of the engines. And total usage is 10.46.
On the last one - ore converter is turned off and fuel usage is normal 18.35
See screenshots of static craft for values as the furthest tank (Mk2 to 1.25 adapter) from the engine is depleted with converter running, and again with converter turned off. (AdapterTankEmpty-*)
Additional simpler craft attached (ResourceTestRig.craft) for verifying other LF engines using the above steps.
h3. Notes:
I did additional testing today. It's related not only to ore conversion but also to "Mk2 to 1.25m Adapter" (maybe to any empty fuel tank in the chain). On this video https://youtu.be/hHqytIg025w you can see how flow is being reduced while converting which if fine until fuel in "Mk2 to 1.25m Adapter" ends. In the end of the video I'm trying to show that bug is independent on each side.
Additionally I have attached a craft to help you reproduce the bug.
The static craft use multiple launch clamps to supply a constant EC charge which is enough to power a conversion. This removes any variable sun exposure for solar panels which may affect conversion and therefore results.
h3. Reproduction
# Load the attached craft on the pad (Super Mega Ore Eater Static.craft)
# Open the context menus for the ISRU converter, Mk2 to 1.25 adapter and bottom NERV (As viewed on the pad, right hand outboard)
# Apply full throttle, and initiate the first stage (space)
# Toggle the converter on an off continuously for Liquid Fuel conversion during the test.
# Monitor thrust of NERV and fuel level of adapter.
h3. Expected:
Fuel flow and thrust is normal.
h3. Result/Observed:
Fuel flow and thrust is reduced.
On the fist two screenshots you can see fuel flow is down to 0.00164 on some of the engines. And total usage is 10.46.
On the last one - ore converter is turned off and fuel usage is normal 18.35
See screenshots of static craft for values as the furthest tank (Mk2 to 1.25 adapter) from the engine is depleted with converter running, and again with converter turned off. (AdapterTankEmpty-*)
Additional simpler craft attached (ResourceTestRig.craft) for verifying other LF engines using the above steps.
h3. Notes:
I did additional testing today. It's related not only to ore conversion but also to "Mk2 to 1.25m Adapter" (maybe to any empty fuel tank in the chain). On this video https://youtu.be/hHqytIg025w you can see how flow is being reduced while converting which if fine until fuel in "Mk2 to 1.25m Adapter" ends. In the end of the video I'm trying to show that bug is independent on each side.
Additionally I have attached a craft to help you reproduce the bug.
The static craft use multiple launch clamps to supply a constant EC charge which is enough to power a conversion. This removes any variable sun exposure for solar panels which may affect conversion and therefore results.