That's it. Easy to understand quick to find. That is why I just love the channel . Otherwise people show how to find cg with big definitions, explanations, big big equations,lots of deltas, sigmas,alfa, beta, gama , 💀💀etc etc.....
Great tutorial again! Someone has probably pointed this out, but CG is actually a point inside the aircraft. Great to remember, putting heavy stuff far out on the wing. The plane might do some nasty stuff, tip stalling and such at low speed.
Great video! just the "right balance" between video length and valuable info. You have one of the best UA-cam channel on r/c. Thank you. Greetings from 🇧🇷.
Andrew Newton I would say that people who are into rc planes even if they beginners are into the in dept stuff. People who don't want to go in dept probably just go to the rtf multi copters. Or maybe I'm wrong :P Beginners, what's your take?
Might be able to dumb down or simplify showing the relationship between center of gravity vs. center of lift with a scratch build that allows for repositioning of the main wing as well as weight.
WELL DONE, Excellent video with a lot of visual representation and explanation of what happens to a model aircraft when the CG is too far forward or behind!! Yes there are many other video's out there that explain CG but they complicate and confuse the hell out of their viewers with arithmetic and physics, YOUR VIDEO is easy to follow and very engaging!! There was no point in your video where I felt like your explanation of CG dragged out and made me want to leave. Again, Bravo and Well Done!!!
Another great video. You explain CG so well. I was scratch building one of experimental airlines planes and was reading and watching everything I could find on the subject...got one more piece of the puzzle from this video.
Great sharing Andrew and loved some of the other viewers comments with your responses. I hope when I search more of your videos I do find one on centre of lift and other information related to this topic. Thanks for sharing you wisdom.. Jeff
For scratch build there is always be unloaded Glide test. if it flies level its balanced if the nose comes up tail heavy, if it dives it's nose heavy. Again do this without any electrics and surfaces taped neutral, try and do it onto long grass or something similarly soft. Once you have it gliding level, mark your COG and load her up!
Andrew Newton , better crashing a 100-300gram empty she'll of a plane at hand speed rather than fully loaded with electrics at launch speed. I haven't had a crash maiden flight since I started this a year ago. I do agree with others though. Start nose heavy and slowly move back. This will pull the nose down during a stall which brings airflow back over the wings again. Keep the tips and scratch builds coming Andrew!
I really never trust the CoG numbers in manuals, especially not the cheaper ones. I usually start quite nose heavy and move it back slowly each flight until I find the sweet spot.
Mr. Newton I appreciate your channel. Your very informative. I have learned a lot from your videos and I wanna say thanks for all you do to put all the info that is so incredibly valuable. I have been working on building one of the planes you gave the sizes on, haven't finished but really looking forward to flying it. I also wanna say love the gliders you show in your videos. Super cool. Thanks Terry
anewt, thanks for posting. we both know its 50% of root chord, not span. at :56, you make a slightly misleading comment, saying you had to 'figure out the cg again'. more accurate to say re-balance. cheers
Thanks for that . The tail of my rc plane was too heavy as a result it crashed doing a loop several times and hence now it is balanced . Thank you for this video
Well said Andrew, once again a great video. I am actually a career pilot based in South Africa and I thoroughly enjoy your videos. Good explanation of CofG, I like! Now just because I can fly a Boeing doesn't mean I can fly an RC aircraft. Ask my RC Cessna 182 that is in a million pieces. So may I ask for a recommendation for a great beginner/ intermediate RC aircraft that's easy enough to learn on? What are your thoughts? Thanks!
Hi Cameron. I have heard that real plane experience can make RC flying more difficult. I imagine you would over think everything. The best learner /all rounder is something like the Bixler1 or 2, Dynam Hawksky and AXN style of pusher glider. Much easier to start without landing gear too, just hand launch and belly land until you can handle it. Good luck!
How about one on the dive test to find how the CG is (front or rear?) also one of the best phrases about CG "a very nose heavy plane flies poorly... a very tail heavy flies once"
Well its just trim for level flight and then peform a 45º dive..if it raises its nose heavy , if it keeps straight at 45º its spot and if it dives more its tail heavy.. all of them are derived too from the needed trim to fly level.. I might be biased tough..its how all slope folks do it here when in doubt ... and it actually helped me figure that some planes (like my Phoenix 2000 or the FVK Signal) were nose heavy due to conservative-forward CGs in manuals while others (like the SIG Ninja) were tailheavy..
Gday Andrew Do you still use and recommend doumment laminating film ? Also i noticed on one of your other vids (not sure what one) you did a test with a motor and prop where you checked how many amps the they were pulling . What did you use to measure the amps ? my multimeter is unfused and says 10 amps max and the esc i blew last week was a 30A not sure what to use to get a measurement .
I use laminating film on flat surfaces mostly and packing tape on wings, both work well. I have been using a watt meter from Hobby King to measure current but that's now giving inaccurate readings, so now I use an FrSKY current sensor connected to an X series FrSKY receiver
My scratch build rc plane after taking off went inverted and crashed what would be the problem??? Is it tail heavy?? And i had checked the CG,it was all right Anybody help please😥
Well, I came here after watching Experimental Airlines performing surgery on himself, my mind is back on track. I'd like to watch you explain how to put a power pod over the wing of a glider sometime, confusing subject to me.
just make a power pod that does this. see link. 'this' being the use of Both an Offset thrust Line and a Compensating Correct Adjusted thrust Angle. the goal: the thrust Angle should cause the thrust Line to Intersect a model's center of MASS. oddly, center of Mass and distribution of Mass are Seldom mentioned by hobbyists these days. i guess i am the last of a breed. cheers static.rcgroups.net/forums/attachments/2/9/6/3/9/7/a5988257-224-bixler%202%20motor%20angle%20correction.jpg?d=1375236281
It's always more difficult to find if you don't have a circular gravy jug. But if you've already put all the gravy on your dinner, then the CG becomes impossible to find.
thanks for posting. good advice, there. for noobs, i will point out that the expression 'figure out' a cg is misleading. if you can find 30% of the root chord of a conventional wing, you have Found the cg. during a maiden, etc, balancing at 25 percent ensures that a model is flying in a nose-heavy condition. in either case, there is not a lot of 'figuring'. cheers
oh yeah, right. is this the point where i should write a page detailing where the Optimal cg is for EVERY possible planform, for NOOBS. its yerz, if you say please. or consider updating your mental filters, with more maturity and critical thinking. cheers.
Best beginners videos on UA-cam for this kind of stuff. Thanks...
Thanks Mr Amson
That's it. Easy to understand quick to find. That is why I just love the channel . Otherwise people show how to find cg with big definitions, explanations, big big equations,lots of deltas, sigmas,alfa, beta, gama , 💀💀etc etc.....
Ha yes I spent hours trying to talk about centre of lift etc and gave up because I couldn't even understand myself. Best to keep it simple.
Great tutorial again! Someone has probably pointed this out, but CG is actually a point inside the aircraft. Great to remember, putting heavy stuff far out on the wing. The plane might do some nasty stuff, tip stalling and such at low speed.
Yes, putting cameras on wingtips can be scary sometimes, even if balanced
Great video! just the "right balance" between video length and valuable info. You have one of the best UA-cam channel on r/c. Thank you. Greetings from 🇧🇷.
Thanks 👍
Center of gravity needs to match the center of lift for the plane to be balanced :)
Love your channel, thanks for the practical tips!
Thanks Pedro. I had a much longer version explaining centre of lift etc but though it was too complicated for a beginner
Andrew Newton I would say that people who are into rc planes even if they beginners are into the in dept stuff. People who don't want to go in dept probably just go to the rtf multi copters. Or maybe I'm wrong :P Beginners, what's your take?
Might be able to dumb down or simplify showing the relationship between center of gravity vs. center of lift with a scratch build that allows for repositioning of the main wing as well as weight.
WELL DONE, Excellent video with a lot of visual representation and explanation of what happens to a model aircraft when the CG is too far forward or behind!! Yes there are many other video's out there that explain CG but they complicate and confuse the hell out of their viewers with arithmetic and physics, YOUR VIDEO is easy to follow and very engaging!! There was no point in your video where I felt like your explanation of CG dragged out and made me want to leave.
Again, Bravo and Well Done!!!
Many thanks, I do strive for simple explanations
Another great video. You explain CG so well. I was scratch building one of experimental airlines planes and was reading and watching everything I could find on the subject...got one more piece of the puzzle from this video.
Thanks Jim.
Very helpful video. Can you please describe the ways of finding cg of different shaped wings?
Best to find an online CG calculator. It does all the hard work for you.
Excellent video Andrew. Thank you!
Hi Andrew, still think your videos are super helpful ! What to do if the plane is already nose-heavy without a battery ?
Move the battery back, or add weight to the tail
here is 2AM and i watching your video!! thank you guy for your useful videos!! with the best wishes for you. from IRAN.
Hello to Iran! I'll add your suggestion to the list
Great sharing Andrew and loved some of the other viewers comments with your responses. I hope when I search more of your videos I do find one on centre of lift and other information related to this topic. Thanks for sharing you wisdom..
Jeff
Thanks Jeff. No videos on centre of lift sorry.
For scratch build there is always be unloaded Glide test. if it flies level its balanced if the nose comes up tail heavy, if it dives it's nose heavy. Again do this without any electrics and surfaces taped neutral, try and do it onto long grass or something similarly soft. Once you have it gliding level, mark your COG and load her up!
Crazy talk, but if it works for you
Andrew Newton , better crashing a 100-300gram empty she'll of a plane at hand speed rather than fully loaded with electrics at launch speed.
I haven't had a crash maiden flight since I started this a year ago.
I do agree with others though. Start nose heavy and slowly move back. This will pull the nose down during a stall which brings airflow back over the wings again.
Keep the tips and scratch builds coming Andrew!
Good information Andrew , many thanks. .....
Great Video Andrew. Really helpful for beginners like me.
Excellent, glad it helps
Another great video. Keep it coming....
Always
Thanks mate. Very useful
Good explanation of the Center of Gravity, why it's important, and why you don't want a tail heavy plane. Happy Flying!
Tried to keep it as simple as possible.
Top tips great information and easy to understand :)
I really never trust the CoG numbers in manuals, especially not the cheaper ones. I usually start quite nose heavy and move it back slowly each flight until I find the sweet spot.
Good point. DTTM - don't trust the manual
Its just a guide, they are mass produced and quality is not stellar
Mr. Newton I appreciate your channel. Your very informative. I have learned a lot from your videos and I wanna say thanks for all you do to put all the info that is so incredibly valuable. I have been working on building one of the planes you gave the sizes on, haven't finished but really looking forward to flying it. I also wanna say love the gliders you show in your videos. Super cool. Thanks
Terry
Thanks Terry, call me Andrew. Wonderful feedback, I just do this because it's fun and like sharing what I learn.
With a swept wing measure half the wing length between the centreline of the plane and the tip and balance for c of g there.
Great tip, thanks Andrew.
anewt, thanks for posting. we both know its 50% of root chord, not span. at :56, you make a slightly misleading comment, saying you had to 'figure out the cg again'. more accurate to say re-balance. cheers
Very simple and useful information for my DLG powered conversion model maiden. 👍
Glad it was helpful!
Thanks for that . The tail of my rc plane was too heavy as a result it crashed doing a loop several times and hence now it is balanced . Thank you for this video
Ah yes, a comment problem
Really useful information well presented.. Thank you Andrew 👍
Great stuff! Love the ending :) Now please do one about thrust angle for pushers. I've been flying for years and it still catches me out..
Yes I should do that and wing incidence too
@@AndrewNewton 1wawwawawawawawawa1
Grande Andrew, no paro de aprender contigo!
Excellent, my evil plan is working!
Do you count Ailerons to get 30% mark of just30% of wings cord excluding ailerons?
Yes, include ailerons. They are part of the airfoil
Just curious....is this true for all wing types, like a delta/swept wing?
The video covers swept wings and straight wings
Thanks Andrew that is a great help mate.
I tried a fuller explanation and thought stuff it, I can even understand myself
Well said Andrew, once again a great video. I am actually a career pilot based in South Africa and I thoroughly enjoy your videos. Good explanation of CofG, I like!
Now just because I can fly a Boeing doesn't mean I can fly an RC aircraft. Ask my RC Cessna 182 that is in a million pieces. So may I ask for a recommendation for a great beginner/ intermediate RC aircraft that's easy enough to learn on?
What are your thoughts? Thanks!
Hi Cameron. I have heard that real plane experience can make RC flying more difficult. I imagine you would over think everything. The best learner /all rounder is something like the Bixler1 or 2, Dynam Hawksky and AXN style of pusher glider. Much easier to start without landing gear too, just hand launch and belly land until you can handle it. Good luck!
Great vid again sir!
always helpful, hanks for sharing
How about one on the dive test to find how the CG is (front or rear?)
also one of the best phrases about CG "a very nose heavy plane flies poorly... a very tail heavy flies once"
Not a fan of the test dive, too difficult for a beginner and it only tells you if the elevator is up or down for level flight.
Well its just trim for level flight and then peform a 45º dive..if it raises its nose heavy , if it keeps straight at 45º its spot and if it dives more its tail heavy.. all of them are derived too from the needed trim to fly level..
I might be biased tough..its how all slope folks do it here when in doubt ... and it actually helped me figure that some planes (like my Phoenix 2000 or the FVK Signal) were nose heavy due to conservative-forward CGs in manuals while others (like the SIG Ninja) were tailheavy..
300th like baby!!! Love this vid. Thank you very much.
lover ur simple explationatin of Cg but give full name of scout white model rc plane so i purchase the same
Dynam Scout ua-cam.com/video/NgUphkmMRV0/v-deo.html
A great video Andrew thankyou !!!!
Sweet
Gday Andrew
Do you still use and recommend doumment laminating film ?
Also i noticed on one of your other vids (not sure what one)
you did a test with a motor and prop where you checked how many amps the they were pulling .
What did you use to measure the amps ?
my multimeter is unfused and says 10 amps max and the esc i blew last week was a 30A not sure what to use to get a measurement .
I use laminating film on flat surfaces mostly and packing tape on wings, both work well. I have been using a watt meter from Hobby King to measure current but that's now giving inaccurate readings, so now I use an FrSKY current sensor connected to an X series FrSKY receiver
Thank you
I tried the wing cg calculator. Just a question though, do you include the elevons to the measurements? Or just the wing w/o the elevons? Thanks!
Yes, control surfaces are included in the chord measurement
Thank you!
bravo.thenks
Great video! With a truly epic ending! 😂. Come on Andrew, make that guy fly!!! Please?? That is just so you... Do it!!👍
Have to get Brains on to it!
Andrew Newton, haha... Well, that shouldn't be a problem, would it?
Andrew Newton take a ballon - he will fly
Thats just a guide, to be 100%, fly it inverted and vertical, thats when its fine tuned for CG.
'Quick and dirty', just how I like it! I mean the plane tips of course..
Haha, of course
:¬D
My scratch build rc plane after taking off went inverted and crashed what would be the problem???
Is it tail heavy??
And i had checked the CG,it was all right
Anybody help please😥
First thought would be CG too far back, then elevator or ailerons reversed. Did it roll or loop to inverted?
Well, I came here after watching Experimental Airlines performing surgery on himself, my mind is back on track. I'd like to watch you explain how to put a power pod over the wing of a glider sometime, confusing subject to me.
I haven't tried either of those things, probably never will.
just make a power pod that does this. see link. 'this' being the use of Both an Offset thrust Line and a Compensating Correct Adjusted thrust Angle. the goal: the thrust Angle should cause the thrust Line to Intersect a model's center of MASS. oddly, center of Mass and distribution of Mass are Seldom mentioned by hobbyists these days. i guess i am the last of a breed. cheers
static.rcgroups.net/forums/attachments/2/9/6/3/9/7/a5988257-224-bixler%202%20motor%20angle%20correction.jpg?d=1375236281
It's always more difficult to find if you don't have a circular gravy jug. But if you've already put all the gravy on your dinner, then the CG becomes impossible to find.
Cryptic clue. Force it in gravy
How to find it on a canard?
Trial and error I suspect
2024 ANYONE 🎉🎉🎉
Nice info, can i have your soldier doll sir? ✌️😂
That's the evil Hood from the Thunderbirds
thanks for posting. good advice, there. for noobs, i will point out that the expression 'figure out' a cg is misleading. if you can find 30% of the root chord of a conventional wing, you have Found the cg. during a maiden, etc, balancing at 25 percent ensures that a model is flying in a nose-heavy condition. in either case, there is not a lot of 'figuring'. cheers
The flat Boxler wing was more like 15%, the Raven mini DLG is more like 55%
oh yeah, right. is this the point where i should write a page detailing where the Optimal cg is for EVERY possible planform, for NOOBS. its yerz, if you say please. or consider updating your mental filters, with more maturity and critical thinking. cheers.