Modified Flat Wing BL GWS Slow Stick Flight Effect of CG

I took out my brushless modified flat bottom wing GWS Slow Stick (SS) but forgot to check the Center of Gravity (CG) before take-off. So how does a tail heavy SS fly like? This video shows the difference in flight characteristics before and after adjusting the CG.

Flying a tail heavy airplane is a very frustrating experience. The model is difficult to control and for the absolute beginner would probably end up with a crash. The CG should be checked BEFORE the model is flown - even if you "know" there should be nothing wrong with it.

Why a flat bottom wing on the SS? It improves the wind penetration of the model but it tends to fly faster than the regular SS wing which is very nice for those windy days that would otherwise ground the SS with a regular wing. It becomes a "Not so Slow Stick" in the process.

Thanks for watching and fly safe!

Category:

Howto & Style

Tags:

• aviation
• airplane
• GWS
• Slow
• Stick
• Brushless
• Modified
• Flat
• Wing
• Windy
• time lapse
• model vehicles
• flight simulator

[tsisapik]

@theaztbear Greetings .. of course one should read the manual carefully to find out the correct CG location. Challenge is if the model balance point is off the CG point because the battery shifted rearward of where it should be making the model tail heavy and was not corrected before the flight.

[theaztbear]

@crazu00 LOOK IN THE HAND BOOK THAT CAME WITH YOUR PLANE. IT WILL GIVE YOU THE 'CG' LOCATION FROM THE (Leading Edge)

[tsisapik]

@crazu00 Hi! CG is about 95-105mm from the LE (Leading Edge) of the wing. This wing CG point is independent of the setup (brushless vs brushed) and does not change. You need to adjust the wing position along the boom/fuselage until balance is achieved at the CG point. Rearrange components to achieve proper balance. For your initial flights, make the model slightly nose heavy for more stability move back for more aerobatic movement. Check CG specially after a landing/ nose plant ...

[crazu00]

hey there, i just started flying and keep hearing people talk about the CG. How do u check its position and where is its optimum location on a plane/glider?