Boring maths on parachutes in 1.2

[paulprogart]

7 hours ago, Lunar Sea said:

What does spread angle affect? 

Changes the deployment angle of the parachute relative to the craft, which affects the amount of drag created.  Also affects the visual angle... you can see above how the second screenshot with the higher spread angle has a gap between the parachutes while the first doesn't.

[Archgeek]

On 2/12/2017 at 4:36 PM, Sharpy said:

Waait.

8 chutes in symmetry: 8^1.5 - equivalent to 22 chutes.

20x symmetry from EEX... nearly 90 chutes equivalent. This is getting insane.

Goodness.  I wonder if nested symmetries count.  Consider 8 chutes in symmetry around a part that is then itself placed in 8x symmetry, resulting in a total of 64 chutes, and if it stacks, fully 512 chutes equivalent.  This could be altogether out of hand.

[GarrisonChisholm]

2 hours ago, Archgeek said:

Goodness.  I wonder if nested symmetries count.  Consider 8 chutes in symmetry around a part that is then itself placed in 8x symmetry, resulting in a total of 64 chutes, and if it stacks, fully 512 chutes equivalent.  This could be altogether out of hand.

Mm, I don't think this is the case, unless these numbers are new to 1.2.  In my 1.12 (?) game I know that a MESS of parachutes will Still get me killed on Duna;  thrust required for safe landing.  I am sure my last design (pictures somewhere on What Did You Do Today?) used over 100 chutes, and I was still going 60 m/s when I did my first lithobreaking test.

[Archgeek]

7 minutes ago, GarrisonChisholm said:

Mm, I don't think this is the case, unless these numbers are new to 1.2.  In my 1.12 (?) game I know that a MESS of parachutes will Still get me killed on Duna;  thrust required for safe landing.  I am sure my last design (pictures somewhere on What Did You Do Today?) used over 100 chutes, and I was still going 60 m/s when I did my first lithobreaking test.

Ah, but were they all in teired symmetry with eachother?  This n^1.5 shenanigan seems to take place within symmetry groups alone.

[GarrisonChisholm]

4 minutes ago, Archgeek said:

Ah, but were they all in teired symmetry with eachother?  This n^1.5 shenanigan seems to take place within symmetry groups alone.

My practice was 8-fold symetry, 3x with radial chutes, on a large lander with 4 bodies.  I *think* that would trigger the issue, yes?  :?

 

[GarrisonChisholm]

Someone clearly needs to layer a physics-breaking number of parachutes on a Mk1 Pod and drop it onto Duna, and see if it descends ridiculously slowly!

[Archgeek]

1 hour ago, GarrisonChisholm said:

My practice was 8-fold symetry, 3x with radial chutes, on a large lander with 4 bodies.  I *think* that would trigger the issue, yes?  :?

 

Indeed, so long as they actually stayed in symmetry.  I wanna try a nose cone with 8 radials on it radially attached in 8x symmetry to an ore tank and see how that does.

[treeko]

can any of these equations be re-purposed to work for real life scenarios.

[linuxgurugamer]

1 hour ago, treeko said:

can any of these equations be re-purposed to work for real life scenarios.

You do realize that you necro'd a 2 1/2 thread?

[Deddly]

51 minutes ago, linuxgurugamer said:

You do realize that you necro'd a 2 1/2 thread?

That's not a problem if the question is still valid. 

[linuxgurugamer]

2 hours ago, Deddly said:

That's not a problem if the question is still valid. 

True, but given the age, I'm sure that the original participants in the thread have moved on and aren't thinking about it