BK-90 Parachutes bug.

[elekrytyk]

BK-90 parachutes are not working properly. They rotate in random directions.

Have a nice day :)

[dorianR666]

i confirm this bug. some parachutes fall sideways.

 

i have a video recording containing this issue that is 11 months old now, so its nothing new. ive never noticed it though.

[Northstar98]

Also seeing it on the last 2 stable builds (including current).

 

Parachutes seem to rotate in the horizontal plane instead of falling.

[Flappie]

100% reproducible.

 

 

AJS37_BK90_chutes.trk

[Machalot]

Do they pull the munitions around, or is it just a glitched animation?

[Flappie]

On 2/5/2021 at 11:40 PM, Machalot said:

Do they pull the munitions around, or is it just a glitched animation?

No idea, I'm not a Bk90 specialist. One should play the same track on two different builds to know more. Do we know which version this bug has sprung from?

 

7 hours ago, Desert Fox said:

Oh @Flappie, what have you done That video is gold and definitely a piece of art. Love it!
Didn't laugh that much about a Viggen bug since canopy of doom.

Thanks!

[Northstar98]

On 2/5/2021 at 10:40 PM, Machalot said:

Do they pull the munitions around, or is it just a glitched animation?

 

Glitched animation/physics (?)

 

As the BK-90 is a gliding munition and releases basically over the target, so you'll want the velocity they got from the dispenser to reduce to 0 so they'll drop vertically, over the target.

[MAXsenna]

Oh @Flappie, what have you done That video is gold and definitely a piece of art. Love it!
Didn't laugh that much about a Viggen bug since

.

Haha! And the music is just... Perfect!

Sent from my MAR-LX1A using Tapatalk

[Machalot]

2 hours ago, Northstar98 said:

 

Glitched animation/physics (?)

 

As the BK-90 is a gliding munition and releases basically over the target, so you'll want the velocity they got from the dispenser to reduce to 0 so they'll drop vertically, over the target.

I don't know if my question was clear.  I was wondering if it's only a glitched animation or glitched physics.  For example, is the parachute drag force applied in the direction the parachute is shown, which would amount to a lateral force on the bomblets, or is it in the correct physical direction (opposite the velocity vector) despite where the parachute is shown.

Edited February 10, 2021 by Machalot

[Northstar98]

11 hours ago, Machalot said:

I don't know if my question was clear.  I was wondering if it's only a glitched animation or glitched physics.  For example, is the parachute drag force applied in the direction the parachute is shown, which would amount to a lateral force on the bomblets, or is it in the correct physical direction (opposite the velocity vector) despite where the parachute is shown.

 

Oh, my bad.

 

Lemme do a quick test and I'll have a look.

 

EDIT: Seems to be just an animation issue, the velocity of the bomblets is vertically downwards with no wind.

 

Spoiler

Just as a side note, it it just me or are the release cues for the BK-90 off? I only get the maximum range cue (horizontal line just touching the 2 small vertical lines). 

 

According to the RC2 manual, their maximum range is somewhere around 10km, at the moment I'm getting maximum range cues at ~2-3km if that.

 

EDIT 2: I just launched from what the HUD release cues thought was out of envelope, but around the maximum range as stated in the manual (around 8-9km) - the BK-90s had no problems hitting the target and they still had a good amount of speed remaining (~700-800kph), releasing at mach > 0.9 @ 500m AGL, with the BK-90 set to glide at 100m AGL, no wind.

 

It seems the actual maximum range of the BK-90 is a fair bit further than what the release cues would have you believe.   

 

Edited February 11, 2021 by Northstar98

[dorianR666]

still bugged.

 

[IronMike]

On 2/5/2021 at 6:30 PM, Flappie said:

100% reproducible.

 

 

AJS37_BK90_chutes.trk 40.24 kB · 8 downloads

 

This is so much gold, I kinda dont want to track it lmao. (still traked though lol)