Greg Rullman
President
Duke City Electric Flyers
Hint of the Week: Here's a couple, when it comes to setting your CG (Center of Gravity)
Now, I've written before about CG and how important it is to aim for a neutral CG. But, this little trick can also help find a CG starting point, if it's not pointed out in the instructions.
If the airplane is a taildragger, the CG will always be just behind the main gear axle as the plane sits on the main gear level (tail off the ground).
If you have a tricycle gear, the CG will be slightly in front of the main gear axle as the plane sits level.
I write this assuming the designers got the layout right. You will encounter some aircraft were they didn't. You will know they didn't because the plane will either not sit right on the ground or it will have an issue rotating on take off. But, these incorrect examples are rare. I do happen to own one tho. Yep, straight from the company!
The reason for a CG location very close to the main gear axle is for ease of rotation at take off. The more distance the CG is from the gear, the harder it becomes for a correct rotation to flight. A taildragger will lift off too soon, possibly stalling. A trike will need more up to get the nose to come up. Then, when it does, it does so, fast!
Now, I know I've written about finding the true CG when in the air, so I won't go into that here. I just wanted to show you another way of where to start if you didn't know. So, check that CG and know before you go. Best!
To unsubscribe, please reply to this newsletter with UNSUBSCRIBE in the Subject Box… Thanks! g