Originally Posted by
pfact
Skunkwrks -
I tackled the same issues when I built my son's Viper in 2013. We chose to try Behotec electric retracts & brakes - they are an easy fit (no modification required) and after 111 flights I can say they work at least as well at electron. The cool thing about them is they use stepper motors which permits the user to define up and down endpoints rather than relying on changes in current draw to stop.
Phil
Checked the gear in the bracket and had to narrow the support bracket with some plywood and hysol fastening to the bracket. The wheel looks like it will touch the fuse with the gear swing. Might have to get a 65mm wheel as the re40 gear have a 75mm wheel. The Behotec are good gear and having adjustable limits are great.