Yes, there is part of me that is afraid of finishing this project.
Is the feature being discussed here important? Yes, I think it absolutely is. Not just because I like it that way, but there could be possible legal ramifications.
Without getting too much into the "nitty gritty" of it, there are rules and regulations regarding the angles at which a model rocket or pyrotechnic rocket should be launched. In fact, my 90 to 45 degrees is just an example for the purposes of the discussion.
In reality 90 degrees (ie. straight up) would be dangerous. So best to restrict that to 80 degrees, and then according to rules, you shouldn't launch at less that 60 degrees.
I'll put it this way: Imagine launching a pyrotechnic rocket, that is a rocket that has on the top of it a "shell". The shell is filled with "stars", meaning stars in this context are small pieces of pyrotechnic compositions that ignite and produce colour or glitter effects.
That's what we all love to see. If that rocket containing the shell (the vessel that holds the stars) is launched straight up (ie. 90 degrees) and the "time fuse" which ignites the burst charge in the shell fails, then re-ignites, falls to the ground and explodes......
Model Rockets have a different purpose, usually altitude is the main game and a recovery system is employed. A parachute or streamers to slow down the decent.
So I have to be careful in a way. Most "pyrotechnic professionals" would already know the dangers and would probably have no interest or need to use my software. My software (will) enable professionals (and amateurs) to measure the thrust performance of the motor, and also display "prediction" of the final altitude. My philosophy is that it's better to have more information than less.
In any case, there are MANY tutorials out there for making rockets and some failure where people get their fingers blown off, or get badly burnt.
I can't guard against stupidity, yet I also don't want to leave myself open for potential litigation. You may well ask "why the heck am I doing it all then?" Well, because pyrotechnics and model rocketry have been an big big interest of mine for many years, and I do enjoy software programming. My Software is just a "tool".
A picture tells a thousand words. Some of my own experiments:
Skip this one unless you are brave :)