HelloThis is nothing new to the rc world, but maybe helpful to someone and here is my version of the center of gravity tool.
I think the picture show how it´s done, heheIt have helped me allot, because in the beginning i had some problems whit the cg and i tried to use the finger tip method whit out luck, But now i can align my Easy Star to fly better.And here is the Easy Star resting on my center of gravity tool pro!
COG or more correctly CG (Center of Gravity) should be more or less between 25% and 33% of the MAC (Mean Aerodynamic Chord) of an aircraft - From Wikipedia: To ensure the aircraft is safe to fly, it is critical that the center of mass fall within specified limits. This range varies by aircraft, but as a rule of thumb it is centered about a point one quarter of the way from the wing leading edge to the wing trailing edge (the quarter chord point). If the center of mass is ahead of the forward limit, the aircraft will be less maneuverable, possibly to the point of being unable to rotate for takeoff or flare for landing. If the center of mass is behind the aft limit, the moment arm of the elevator is reduced, which makes it more difficult to recover from a stalled condition. The aircraft will be more maneuverable, but also less stable, and possibly so unstable that it is impossible to fly.
But it does depend on how much sweep the wing has, 1/3rd of wing chord on the wrong plane can put the CG dangerously rearwards making it unflyable. There's lots of info on the 'net about this subject.
Oh, excuse me for my bad English..
I just wanted to say : "The CG adjustment is very important in time to fly our models. Flying a plane with no correct CG adjust can cause serious damage to our equipment.
I used Google to translate from Portuguese to English.
Dear NorthSweden.
For more that think that your machine is simple, the CG adjustment is very important in time to fly our models. Flying a plane with correct CG adjust can cause serious damage to our equipment.
Comments
But it does depend on how much sweep the wing has, 1/3rd of wing chord on the wrong plane can put the CG dangerously rearwards making it unflyable. There's lots of info on the 'net about this subject.
I just wanted to say : "The CG adjustment is very important in time to fly our models. Flying a plane with no correct CG adjust can cause serious damage to our equipment.
I used Google to translate from Portuguese to English.
Can just say that CG is science by it self,
And i don´t understand your last comment "Flying a plane with correct CG adjust can cause serious damage to our equipment." ?
For more that think that your machine is simple, the CG adjustment is very important in time to fly our models. Flying a plane with correct CG adjust can cause serious damage to our equipment.