In this build I built my own mast from CFK. In my first build I only used the RL Fuselage and wings, not the mast, I used a chinese slinshot knockoff, which is really solid (and heavy). I do have an RL mast but never used it. I think the RL mast is not the most rigid one on the market, not only the junction between mast plate and mast but also rigidity of the mast itself. But it is relatively low cost, to be fair.
When sketching masts i found the the rl mast has the same profile as the f1 but rl is about twice the thickness. Maybe the grade of alu can be lower on the rl but i think it’s definitely not the flexiest mast out there. Gong v1 mast comes to mind 
Nice build!
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Built a top cover plate for the mast for transport. This keeps the Wagnersil silicone seal in place and allows to fix the phase cables. It also “stores” the fixing screws.
I also need to build a part to secure the motor for transport as this is the most delicate part of my system. The motor is over 2kg and has quite a bit of lever force. Still thinking on how to build an easy to remove sopport for the motor…
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Season is ending, time for a 1st conclusion. I made around 600km on the new board and really like it. If I’d start over I would build the mast slightly angeled to the front to get a better foot position, I have to stand rather far in the back. 10-15cm more to the front would be nice. I extended the fuselage 7cm to the front which helped.
Because of the foot position a bit far back, I have to stand partly on the lid of the rear hatch (the one used to connect the motor cables). The round Osculati hatch was sticking out too much and not nice to stand onto. I built a custom hatch that only stands over 2mm over the board. It is also waterproof, as oposed to the Osculati. Not a big problem as the connectors are also waterproof but extra weight in the board.
Tested differen props, 3 blade FR6”, 2 blade FR 7” and Flight prop. They all work well but I prefer the flight prop, very efficient and fast.
I also built a new smaller rear wing with 187cm2.
New rear hatch
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I really like your builds. You work to a level of perfection that I’ve come to expect from myself. You’re not satisfied with anything and you’re always improving your own things. Keep it up 
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