I'm still learning about things online. I have been reading the rules that came with my Tripoli membership package. One stated that I must have three times the thrust of what my model weighs. Being that I primarily concentrating on my "Stretch Blobbo" rocket right now, to get it ready for launch, I roughly converted my 10.2 ounces airframe weight to 3/4 of a pound.
Since these engines give thrust in newtons, I found a converter by Googling, so I could input various engine outputs to match my 3x.75=2.25 pounds. This means I need at least an engine that puts out 10 newtons, and preferably 11 newtons.
What I wish to know is just how much over 11 newtons is safe for a mid powered model like mine. I can imagine that if you launched it with 50 newtons of thrust, you would probably disintegrate the airframe due to excessive forces.
Also, I am trying to figure out the delay for the ejection of the parachute. It seems that most of the time, the ejection is happening very near the peak altitude, or just a bit down from apogee. How does this affect the recovery system if it is still coasting to peak altitude, or has descended slightly, say for a hundred feet, when the ejection charge finally goes off.
I am guessing that the Jolly Logic Chute Release could resolve this problem, if it is one. Or am I being too worried about little things? Caley Ann