What are delay grains made of?

[eggplant]

What are delay grains made of?

 

[troj]

What are delay grains made of?

Propellant. Just typically with a slower burn rate than the main propellant.

-Kevin

 

[eggplant]

Thanks! I thought that they looked similar...

 

[boomtube]

Are the delay grains made from the same type of propellant that the motor propellant is made from?

And if so; can you mix one from say a Red Line and use it in a Mojave Green?

 

[Aksrockets]

I don't believe so. Different propellants burn at different temperatures, changing the speed at which the delay grain is consumed.

Alex

 

[troj]

Are the delay grains made from the same type of propellant that the motor propellant is made from?

More than likely, it's distinct from a "standard" propellant formulation the company uses. However, without them telling us, we cannot know for sure.

And if so; can you mix one from say a Red Line and use it in a Mojave Green?

Look at the RDK chart that AeroTech publishes -- a Long delay on a given Redline won't necessarily give a Long delay on a Mojave Green of the same size. The reason is that the two propellants burn at different rates and may have different motor pressures, and the pressure affects the burn rate of the delay.

AeroTech publishes a chart telling you which delay to use with which motor, for exactly that reason.

-Kevin

 

[JDcluster]

Most delay / smoke grains used for "Research" or EX; use a formula that has a neutral burning characteristics to it. In other words: it will burn about the same over wide variety of pressures. AT probably does about the same thing to cut down on confusion of different delay packages.
They just use long delay grains instead of different formulas.


JD

 

[JDcluster]

They use similar chemicals but, a different formula.
It would be too slow to try and lift any rocket with it.
Check their RDK chart like Kevin said.

JD

Are the delay grains made from the same type of propellant that the motor propellant is made from?

And if so; can you mix one from say a Red Line and use it in a Mojave Green?

 

[bobkrech]

Attached are some AT/ISP propellants. Look at 80210.

Bob

View attachment ISP_WebPortfolio.pdf

 

[JDcluster]

Yup, that would fit the bill.
The rest looks like a good guessing game.

JD

Attached are some AT/ISP propellants. Look at 80210.

Bob