Hello to all.

I am interested to learn what are the best Servo option for Ailerons on 2x2 F3A airplane with YS170 and Hyde mount.
So far I am using JR9411SA. The reason I am using it is as it gives 7kg at 4.8V with nylon gears, dual BB and
it is very light 38 gram. I heard that the trend today is to go for very fast servos (0.06) but such servos are normally
comes with metal gear.

I would I appreciate your comment including your technical considerations of each servo option.

Thank you very much in advance
Amram Leshed
F3A Israel

Hi Amram,

I used to use the DS8401 with nylon gears in the wings of my Impact. During our championships a couple of years ago I discovered that both sets of gears had stipped which must have happend during the last flight of the first day (2 day comp). Unfortunatley I didn't find the damaged gears until the following morning during set up of the Impact. Fortunatley I had a reserve model (ZN Alliance) which had the DS8411 metal geared version servos installed and could complete the comp. There is a small trade off when using metal geared servos in the form of a small amount of baclash from the gear train but I feel this is a small issue by comparison to maybe losing your a/c during a flight. I don't really see the point in having faster servo's for F3a, the object of the game is to produce a smooth flight with graceful manouvers flown smoothly hence a slow movement of the sticks on any given flying surface. It could be argued though that servo centering after a snap for instance could perhaps benefit from a fast return to centre, but that is probably the only reason for a fast servo speed. I would have thought that the 3D guy's would require the faster servo speeds for the fast response required during some manouvers like the hover etc. I'm sure that if there is any other reason that a fast servo speed would be required for F3a someone will step in here and correct me.

Just my opinion!

Regards,

Andy.