Features

Lightweight — but not too much

• Fractal know there are a lot of weight weenies out there, and Fractal call "myself out first".
• But as the hype and novelty for the most lightestweight frames fade out, Fractal are once again faced with the harsh reality that weight remains heavily correlated to rigidity.
• And a noodle frame may not only be more brittle and easier to break, but will also demand more filtering, thus increasing control loop latency, ruining the control of the build.
• So went for a more balanced approach to weight saving.
• Shaved off just a little here and there where least necessary, and let the material choice do the rest.
• The result sits at just about 3 grams, a non-insignificant saving from what we’ve seen until now, which should only compound with…

Low prop obstruction

• One timeless bottleneck Fractal have seen in Whoops has been the duct struts getting in the way of the thrust.
• An especially spicy issue to tackle when the amount and width of the ducts is so closely related to the frame rigidity and strength.
• But Fractal decided to take another different approach here as well, going for the minimum amount of thin struts to still ensure maximum rigidity with little compromise on durability.
• The motors remain fully connected to the middle section, while the 4 corners of the frame gets supported by a single strut.
• This results in a mostly unobstructed airflow, vastly improved from all Fractal have seen so far, which greatly improves build efficiency and responsivity.

Crown Tips

• Lastly, the crown tips were added to the top of the ducts
• They may not look unfamiliar if you’ve ever ordered a Fractal whoop frame kit, as these have been a design feature Fractal have long wanted to introduce
• Their purpose is 3 fold;
• They increase the effective height of the duct, improving motor/prop protection with little weight penalty
• They help digging into the floor when upside down, making it easier to flip over rather than skid around
• They help leaving an air inlet/outlet on flat/pusher builds when stuck to the ceiling/taking off

All in all, we believe this take on the whoop frame responds the most to what we need whoop frames to be,

Catching up to the increasing speeds and sometimes weights they may carry with HD systems,

Squeezing the most performance out of our improved powertrains as we keep pushing the limits,

And adding functional, quality-of-life features while at it

Thank you for your support and Fractal hope you enjoy your Crown!