Rocket Science - CG & CP - Mikes Inventions
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- Опубліковано 29 вер 2019
- mikesinventions.etsy.com Rocket Science - The Importance of CG & CP. This video goes into a bit more depth about why knowing your CG & CP are important. All bodies act around their Center of Gravity CG, but the air or fluid, acts on the Center of Pressure CP. In stable flight, the CP always trails the CG, with the CP providing a righting torque around the CG to keep the craft pointing in the correct direction. We calculate the CG & CP to ensure our rocket will be stable before we fly it.
Thank you Mike. I've been waiting for more rocket content. I really apricate your well explained short video, it really helps me on beening confident even with simple eqausions.
Very good explanation.
Mike, y,our videos are very professional. This is excellent!
Thanks Mike, aerotech is a fun field of study.
Thank you a lot!
I like your arrow explanation. Not to contradict your excellent info, but in my experience unfletched arrows (those without fins) can fly laser straight. Their secret is a heavy point; a 13 gram arrow shaft might have a 13 gram point at the very tip of it's 700mm length. It is very stable until acted upon by an outside force like strong winds or glancing off a tree branch. That's where an arrows fletching really helps, bringing the nose back in line quickly and not letting the arrow rotate much, keeping it on target. My unfletched arrows and my compound bow are tuned well enough to allow me to strike a target 50 meters away 100% of the time with an unfletched arrow. Any competent archer could do the same. In fact, bare shaft tuning as it's called, is a process every serious archer performs.
3:37
Great video! Any reason not to move the CG forward a couple of inches on your Phoenix demo rocket to increase it's stability to 2 calibers? I am building a clone of that Estes rocket right now and would like to make it more stable.
Super
can you make a video about how weird you can go with a rocket outer design without going nowhere.?
Thank you so much! This video is so helpful to understand the terms. But i have a question, me and my team are going to join a rocket competition so we use 'openrocket' application to calculate this kind of values. Our rocket's beginning stability is okay but at the apogee point stability gets higher because of the decreasing of the fuel (we do not want that). What should we do about this problem? What do you suggest us?
Cool Video man... Could you tell me something about the Center of Thrust? Im about to build a small DIY rocket, and I am wondering... If the CG is above the center of thrust.... Why most of the rockets are still stable? Is it all about the fins? WHat If Im not using Fins? (It would be a Falcon9 type rocket).
Thanks you mike,but can you make tutorial how to find all of that centars,and centar of mass,where it needs to be and and centar if thrust i think i am not sure.
Could you more clarify on the dimensions you mentioned about the distance between cg and cp for stable flight
A most excellent video it may be aged but I used to have that very model launched it many times unfortunately it’s not available anymore hasn’t been for years now and 2022 I can’t even find plans for, sadly
Great explanation. What happens when the cp is in front of the cg? does it just flip?
FYI: I recognize your rocket prop. It is a phoenix missies used on F14 tomcat!!!!
This guy is like Sheldon from big band theory
What's the minimum TWR for a rocket to go up 100 meters, 1000 meters ??? Thanks
thank you im in grade 9 and this video came in clutch for my project thank you also do you know how to make a successful parachute