It’s closer to ~2600, i’d need to ask Fantom
Sukhoi Su-27/30/33/35/37 Flanker series & Su-34 Fullback - History, Design, Performance & Dissection
It is underperforming even with 2200kg fuel + the 600kg delta, uploading the video rn
3 Likes
At 450kph is hovering between 3.7G and 3.8G with 2200kg + 600kg, while it should be doing 4.1.
That’s still a big difference (previous difference of 3.4 instead of 4.1 was massive).
Current difference is still almost 2 seconds time to do a 360 degree turn, aka 1.7 deg/sec turn rate delta
5 Likes
you don’t, you either wait for them to fix the R-77 transonic drag issues, the FM itself or you simply wait for the next update and pray they don’t butcher any non-linear Oswald number airframes
4 Likes
https://community.gaijin.net/issues/p/warthunder/i/OcyfPfZLY902
https://community.gaijin.net/issues/p/warthunder/i/NnsJ3fscrl7R
And more
Theres bunch of issues, similar to your
And most/all of them - not a bug
Are you sure it is TAS? If it is then it is underperforming even more but why the hell are ru manuals so strange…
where it says V км/ч, then this is the true speed. Where Vпр. км/ч is indicated, it means the instrument speed
2 Likes
well then I guess I can make a bug report with it… I used a lower amount of fuel weight than what I should have (2200kg vs 2600kg) and the thing still underperforms
2 Likes
first had wrong weight, second was done at far higher speeds
But on second report also “it matches exact to chart and turn rates diagrams”
it is better to take measurements at speeds of 500, 600, 800, 1000 km/h. And also at an altitude of 5 km
To get “close match to any altitude and speed is not key target for WT FM” btw
at 600+ km/h it seems to be fine, other 600kph+ tests were already rejected.
Main issues with the flanker induced drag seem do be below 500kph
Theres working joke of constant oswald number
are we sure thought the Su27SK is 600kg heavier than the base Su-27? Because in this report devs claim 20200kg weight should be used (aka Su27 weight = Su27SK weight).
Asking because if that is the case I would need to do the test again with 150kg less, it would still be underperforming since difference of 150kg is minimal but it could be the difference between an accepted or rejected report
Just read that message
translated
Specifically, right now I myself found the original document to which that study refers and asked the developer. The answer is something like this (not a verbatim retelling, because all this was said as part of the dialogue): “The Oswald coefficient constants for aircraft with a design like the Su-27 are not applicable. There this coefficient is nonlinear for different speeds. The constants are applicable when the aircraft has a straight, high aspect ratio wing.” “The aircraft parameters are configured according to the curve, rate of climb, speed, and acceleration graphs. Everything is coming together well now. Oswald’s changes will cause a discrepancy with any schedule” “There are no non-linear coefficients in the game yet (technical limitation), but this will not make the plane any better, rather even worse”
And about drag this
Spoiler
The graph of the angle versus speed should show whether the plane can make a steady turn at a given speed; if the angle is greater, then the plane will lose speed. If you are unable to repeat the established turn at a certain angle and speed due to the braking of the plane, then this is bug
We still need to check it out.And at an altitude of 5 km too
Weight for all tests is 20000kg with 2 R-27, 2 R-73
They’re not changing the entire missile and atmospheric drag model to accommodate the R-77.