I bought it to replace the servo "Feiyue Upgraded FY-S3 2.8KG 3 Wire". It's faster. Not so easy to install but possible (see the photo).

I bought it to replace the servo "Feiyue Upgraded FY-S3 2.8KG 3 Wire". It's faster. Not so easy to install but possible (see the photo).

I bought it to replace the servo "Feiyue Upgraded FY-S3 2.8KG 3 Wire". It's faster. Not so easy to install but possible (see the photo).

These are very good servos. Great replacements for standard servos in big airplanes. I've even used them in 120 mm EDF jets for years.

These are very good servos. Great replacements for standard servos in big airplanes. I've even used them in 120 mm EDF jets for years.

These are very good servos. Great replacements for standard servos in big airplanes. I've even used them in 120 mm EDF jets for years.