Random,randomdogonapc wrote: ↑Yesterday, 1:12 pm Hi everyone!
While I'm waiting for our kits to arrive, I decided to try and document as much useful trimming and design advice from last year's and previous flight forums. Flight forums are always super full, so I wanted to thin down the amount of reading I would have to do. Does anyone know what years of Flight/Wright Stuff had rules closest to the designs we're seeing this year? I know the Wright Stuff rules from past years were a lot stricter, but as far as I can tell 2019 and 2020 seasons were both restricted to monoplanes, while 2021 allowed for biplanes? I feel like most trimming advice from the monoplane seasons will hold up to the 2024 season, but I also don't want to go through hundreds of pages of forum posts. Thanks in advance!
Good thought to do some early season research. The Division C 2015 and 2016 season Wright Stuff forums have lots of good detail in them. Last year’s forum advice would be most applicable to this year. 2016 had the 1.5 gram motor rule, however, that season also had rules that specified very small wing area and a 20 cm prop. Best trimming is best trimming regardless of the airplane configuration. So, although the 2015 and 2016 years had very different airplane configurations the process is still the same. The main challenge with the wide wing chord and short tail moment we had last year is that the CG sweet spot is is very narrow. Slightly too far forward and the airplane looks fine but is actually draggy and fast. Too far back and pitch stability suffers. This year’s slightly longer box will allow a small improvement in tail moment and slightly bigger CG sweet spot and better pitch stability.
Enjoy!
Brian T