Angles?

[BretJ]

With regards to cone style baffles (and others as well), 60 degrees seems to be a standard. Is this because it is more efficient at stripping away high velocity gasses than say 45? I understand the requirements for volume/turbulence/cooling in regards to rimfire and centerfire but am unable to find any definitive answer as to why 60 degrees other than it sounds better. Going to submit a form 1 and throw $200 at theory. I want to try a few things learned over the years as a graduate of the "TLAR" school of engineering.

"The opposite of hero is not villain. It is bystander"

Bret

[Bendersquint]

With regards to cone style baffles (and others as well), 60 degrees seems to be a standard. Is this because it is more efficient at stripping away high velocity gasses than say 45? I understand the requirements for volume/turbulence/cooling in regards to rimfire and centerfire but am unable to find any definitive answer as to why 60 degrees other than it sounds better. Going to submit a form 1 and throw $200 at theory. I want to try a few things learned over the years as a graduate of the "TLAR" school of engineering.

"The opposite of hero is not villain. It is bystander"

Bret

Do you need any more than this? Seems like you have your answer; because it sounds better.

-B

[BretJ]

...ok...I set myself up for that. I guess I need to phrase the question differently... Does the 60 degrees strip the gasses away more efficiently than a more severe/less severe angle or is it the most efficient because of length limitations. Second question-Are the specific angles more critical with regards to rimfire/centerfire?
I know these are odd questions but I am trying to wrap my brain around how these work. I have shot plenty of suppressed weapons in my lifetime and am ready to build one of my own.

[RPM509]

I'm going to take a guess and say that the 60 degree angle of the cones is a compromise.
Too steep and the can becomes too long (with dB being equal), too shallow and you would need more
for the same sound reduction, again making the can too long.

Cone-shaped baffles in and by themselves are not the ideal solution, hence the various other designs
that include mouse-holes, hemispherical shaped capture recesses and the like.

[BretJ]

That certainly helps. My design is a hybrid design and I wanted to keep the angles similar to allow parts interchange within the can. (It will make much more sense when I post a model of the design) Guess I will submit the form 1 and fine tune the design while I wait.

[SRM]

Think of the supersonic bullet and the bow waves it produces. It does have influence on the gasses movement inside the can. Angle and spacing go hand in hand. Add some ports and think somemore...

[Bowen1911]

With regards to cone style baffles (and others as well), 60 degrees seems to be a standard. Is this because it is more efficient at stripping away high velocity gasses than say 45? I understand the requirements for volume/turbulence/cooling in regards to rimfire and centerfire but am unable to find any definitive answer as to why 60 degrees other than it sounds better. Going to submit a form 1 and throw $200 at theory. I want to try a few things learned over the years as a graduate of the "TLAR" school of engineering.

"The opposite of hero is not villain. It is bystander"

Bret

Do you need any more than this? Seems like you have your answer; because it sounds better.

-B

b-b-bu-bu-bu-buuutt that makes sense!!!!

[SRM]

That certainly helps. My design is a hybrid design and I wanted to keep the angles similar to allow parts interchange within the can. (It will make much more sense when I post a model of the design) Guess I will submit the form 1 and fine tune the design while I wait.

Please do post your design! We like eye candy.

[BretJ]

Think of the supersonic bullet and the bow waves it produces. It does have influence on the gasses movement inside the can. Angle and spacing go hand in hand. Add some ports and think somemore...

Hmmmm...that adds another dimension I had not thought about. That is, how do you prevent the pressure waves from interacting and amplifying themselves. In my line of work, we use the mach stem effect to our advantage for explosive cutting and breaching purposes. I can certainly see how it is a disadvantage in a suppressor. I really appreciate that bud. Gives me a whole new angle of approach. Wish I could talk some folks at Sandia into giving me some Cray time.....

[RPM509]

Looking at the whole picture, you'll need to consider how sounds reflects from, travels through, is absorbed by and resonates in different materials
as well. So not only the shape of the parts and their materials but how they are attached or fitted to one another can have a profound effect
on its performance.

[PaulNoiseLess]

Hi,

Who the hell said “Cray” ?, F--k that’s where I started on High End Computing long time ago …

My first one was a Cray 1 (still running COS) and the second one was XMP/14se (running UNICOS) and then I moved to USA (California and Minnesota).

F--k !, sorry for this “deyabu” … I spent more than 7 years on that world, you know … What to say about MPP machines …

Ok, ok, sorry about this … keep talking about Cones and sorry for the interruption.

Best,

Paul

[SRM]

I think Paul is having fun here!
You fellers lost me with the crayon thing.

[Golf_1911]

I use angle as following ;

60 degree for my cone baffle with .22lr
30 degree for my step baffle with high velocity ammo larger than .223