XMHobbies G401B Gyro in the Ricco

This is a short test flight in the front yard using the XMHobbies.com G401B gyro, or "gyrd" as it says on the label. ;^) This is a very inexpensive gyro that performs surprisingly well for the beginner to intermediate heli pilot. I was able to reduce the weight to a svelte 8.5 grams by removing the case and shortening the wires. This is certainly not necessary (or recommended) but I wanted to keep it light for the Ricco.

Category:

Science & Technology

Tags:

• xmhobbies
• g401b
• gyro
• laheli
• ricco
• justplanechris

[tonyastro]

sorry I didn't mean to say drift. Just ccw spin. I tried increasing the gain as high as possible just before the tail starts to wag but still the same problem. It could be my servo, Power HD-2216HB

[InsideHeliPodcast]

Ah, that servo is rather slow. Specs show .09 seconds at 6 volts. If you run lower voltage, even slower. My Hyperion is .05 seconds at the same voltage. If your headspeed is low you also have poor tail authority, so that may be a factor. And finally, binding in your tail linkages can cause it. Or all of the above. :) Hope that helps!

[tonyastro]

When you punch the throttle heli spins left just like my 450/gyrd setup. What tail servo do you use? Is there a way to get rid of this drift?

[InsideHeliPodcast]

For that video I was using a Hyperion DS09 GMD, which has since been switched to a DS11 GCB. You can reduce the slight yaw to the left by increasing the gain in most cases. This is not the same thing as "drift", which is a constant tendency to yaw at all times. The best cure for the yaw (and the one I ultimately did) is to install a better gyro. :)

[tonyastro]

@InsideHeliPodcast Thanks! Will work on all of that.