arctic85 Posted May 30, 2023 Report Share Posted May 30, 2023 (edited) Hi All, Not fully ready yet but I've put together a W&B and performance calculations Google spreadsheet, based on the 4 blades AFM. W&B payload stations are listed as I configured them in Planemaker. Since we can only have 9 stations, it's missing some of them. Performance results so far look pretty ok. I'm cross checking them with ForeFlight performance profiles for the MU2 and I'm getting +/- 10 Lbs in terms of fuel. Happy to share if that could be handy when adjusting the flight model in future versions! Cheers! Edited May 31, 2023 by arctic85 Quote Link to comment Share on other sites More sharing options...
tkyler Posted May 30, 2023 Report Share Posted May 30, 2023 man, that's pretty cool! I'll get to performance at some point and will revisit this for sure (with your permission) -tkyler Quote Link to comment Share on other sites More sharing options...
arctic85 Posted May 30, 2023 Author Report Share Posted May 30, 2023 (edited) Sure no problem! Now trying to see how I can gather and compile some data: Edited May 31, 2023 by arctic85 Quote Link to comment Share on other sites More sharing options...
Goofy Posted May 30, 2023 Report Share Posted May 30, 2023 The percentage calculations are incorrect For example: "Expected climb distance = 21", "Actual climb distance = 19". The difference is not 90.48%, but 15.79%: (21-19)/21*100 = 15.789...%. Similarly for "Expected time = 7" and "Actual time = 7", the difference is 0%, not 100% : (7-7)/7*100 = 0% And so on. Or you give a different meaning to the "Diff" value... Quote Link to comment Share on other sites More sharing options...
arctic85 Posted May 31, 2023 Author Report Share Posted May 31, 2023 (edited) Yes I know :-). Just did a quick percentage between the expected and actual, took a screenshot and went to bed. Still WIP but screenshot is updated. For my next flight, I'll configure data outputs from X-Plane so I can grab numbers more precisely. Let's see how it looks like. But as some other users have already noticed and reported here, fuel flow in cruise is approx 14% below expected value (TAS too low as well) and seems too high on ground/lower altitude. Because in the end, using the AFM to calculate the necessary amount of fuel is pretty close to what we get in X-Plane MU2. It just burns more fuel in climb and descent/approach phases and less in cruise. It terms of climb performances, it seems to be quite right, just ~5% overpowered, again based on AFM as I've never flown an MU2. Though if I win the lottery, I would love to buy one, it just looks awesome ! Unfortunate they are discontinued, they are so much prettier than a King Air... Edited May 31, 2023 by arctic85 1 Quote Link to comment Share on other sites More sharing options...
ahuimanu Posted July 4, 2023 Report Share Posted July 4, 2023 Is there a link to this? Quote Link to comment Share on other sites More sharing options...
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