This split flap design is something I learned from watching the videos of European F1N contests. It seems to work really well and makes the models easier to trim for a good glide transition while also improving glide performance. I saw a 25% increase in best glide time from the first model in this video by making that one change. Unfortunately the benefit doesn't show in the video because the humidity started rising and that model got really unhappy. The second model also showed a boost in performance, from a best time of 29 seconds up to 34 seconds. Unfortunately I don't have a way to measure the launch height when flying outdoors like this, so I don't know exactly how high these were going. I think the second model was getting around 30 ft, but it could be more...or less... I'll have better data when I fly these models indoors on Friday.
https://www.youtube.com/watch?v=AzlLr5Thtks https://www.youtube.com/watch?v=AzlLr5Thtks
Received on Wed Feb 06 2019 - 07:44:53 CET