SU-35 goes less than half expected top speed
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Top speed of SU-35 is mach 2.35, about 1550kts. In BMS in clean, straight and level flight with full afterburner it won’t go much above 650kts. Tried different altitudes, diving to break through supersonic barrier, greater than 50% documented top speed is not possible. The same lack of top speed appears on several other aircraft.
Edit - Apologies, I was wrong about this, it must have been in IAS/CAS. Just test flown up to 37k, where it maxed out at about 465kts TAS. Then hit afterburners (clean - no stores/pylons). After breaking through the barrier at about 650kts it accelerated quickly to a top speed of 1453kts at 37k feet TAS. Thanks!
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What did you have on it for loadout? Keep in mind that the advertised top speed is typically in a clean jet, no pylons.
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Top speed of SU-35 is mach 2.35, about 1550kts. In BMS in clean, straight and level flight with full afterburner it won’t go much above 650kts. Tried different altitudes, diving to break through supersonic barrier, greater than 50% documented top speed is not possible. The same lack of top speed appears on several other aircraft.
SU-35 is not made to be flow by human … expect issues/inaccuracies.
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What He said. It’s not a viable Flight Model yet. And I think it should be removed.
Try the 27 or 30, even though I haven’t yet. I think they have had some attention recently.
I still have a bad taste in my mouth from a few years back. -
what speed are you refering to? there are 5:
GS (ground speed), CAS (calibrated airspeed), TAS (true airspeed), IAS (indicated airspeed) and EAS (equivalent airspeed).
https://www.ivao.aero/training/documentation/books/PP_ADC_airspeed.pdfairspeed (and the sound barrier) “changes” with altitude due to the different atmospheric conditions.
780kts CAS in 40000ft equal 1464 kts TAS, which would be mach 2.47
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what speed are you refering to? there are 5:
GS (ground speed), CAS (calibrated airspeed), TAS (true airspeed), IAS (indicated airspeed) and EAS (equivalent airspeed).
https://www.ivao.aero/training/documentation/books/PP_ADC_airspeed.pdfairspeed (and the sound barrier) “changes” with altitude due to the different atmospheric conditions.
780kts CAS in 40000ft equal 1464 kts TAS, which would be mach 2.47
My bet on this. He simply does not checked TAS/CAS… I guess Su-35 has same or very similar FM as Su-27 which can fly above M2.0 is BMS4 (and in all other Falcon 4.0 variants.)
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I don’t see any issue? Just took one up. Takes a while but it gets there.
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What He said. It’s not a viable Flight Model yet. And I think it should be removed.
Try the 27 or 30, even though I haven’t yet. I think they have had some attention recently.
I still have a bad taste in my mouth from a few years back.I thought I read (this was in a thread on the A10 FM as I recall) that all the FMs had been gone through and that we could expect fairly accurate performance. I don’t think they all have been throroughly researched but they were updated with what information was readily available. Or maybe that was just the A10? Anyway, I am not trying to make a claim but I was hoping someone from BMS could dive in here and help us get the facts.
As an example, I have heard stories about bad FMs and then when I went up in 4.33U3 the thing people were complaining about seemed not to be the case for 4.33U3. So I wonder if some of the experiences we are talking about predates the latest updates?
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My bet on this. He simply does not checked TAS/CAS… I guess Su-35 has same or very similar FM as Su-27 which can fly above M2.0 is BMS4 (and in all other Falcon 4.0 variants.)
That’s my bet as well Airmanship, M****** - I mean, dude -, do you speak it ?
In all seriousness, I’m not sure if any aircraft is even capable of going 1200 kts CAS. That’s literally what a shell or a bullet experiences
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In all seriousness, I’m not sure if any aircraft is even capable of going 1200 kts CAS. That’s literally what a shell or a bullet experiences
Assuming 1,200KCAS at sea level that is, in fact, much slower than what most modern rifle cartridges can achieve when initially fired.
1200 knots = 1381 MPH = 2222.5 KMPH
Typical 5.56mm muzzle velocity: ~3200 feet per second (varies depending on bullet mass, barrel length, atmospherics, etc.) = 2216 MPH = 3566 KMPH
Typical 7.62mm muzzle velocity: ~2730 feet per second (again, varies depending on bullet mass, barrel length, atmospherics, etc.) = 1863 MPH = 2998 KMPH
There’s actually even a special .357 mag round with a muzzle velocity of ~2300 feet per second = 1568 MPH = 2523.5 KMPH
Anyway…sorry for the tangentius maximus. Bullet ballistics are kinda my thing
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Anyway…sorry for the tangentius maximus. Bullet ballistics are kinda my thing
:shock: Ya don’t say, eh!!
C9
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Assuming 1,200KCAS at sea level that is, in fact, much slower than what most modern rifle cartridges can achieve when initially fired.
1200 knots = 1381 MPH = 2222.5 KMPH
Typical 5.56mm muzzle velocity: ~3200 feet per second (varies depending on bullet mass, barrel length, atmospherics, etc.) = 2216 MPH = 3566 KMPH
Typical 7.62mm muzzle velocity: ~2730 feet per second (again, varies depending on bullet mass, barrel length, atmospherics, etc.) = 1863 MPH = 2998 KMPH
There’s actually even a special .357 mag round with a muzzle velocity of ~2300 feet per second = 1568 MPH = 2523.5 KMPH
Anyway…sorry for the tangentius maximus. Bullet ballistics are kinda my thing
But at 600m ,or about, its only doing half it initial muzzle velocity, and at/past roughly half its range.
So 1200-1800Kph is a good number to throw around for its mean/average speed.
And any thing over 600m you really need to differentiate between Air speed and ground speed because of bullet drop, unless it’s got wings and engine then its a missile.
But who’s watching.