Long Rocket Flames

[Paul_Mowbray]

Trying to create rocket flames. I need my flames to burn for longer so they have more length, where do I start?

Been playing around with the initial velocity settings in a simple source and the burn rate but can't seem to get the flames to last for very long.

[sitnisati]

If you set burn rate to very low value, and use high initial speed, the flame should last pretty long.
Not sure how long they should last in your case...