The phoenix is a 5" freestyle beast that can kick ass on the track too.
It is lightweight at around 100g assembled but it can take a serious beating. Several arm designs were tested and broken mercilessly against whitegums, karri trees, bitumen, you name it; until finally the "gecko foot" design proved to be very tough indeed, and only 12mm across the narrowest section to prevent thrust lost and drag.
The Phoenix has been designed with centre-of-gravity as a priority and this shows in the way it handles; locked in, agile, smooth and fast.
Field serviceability is another priority, which is why a uniplate design was not adopted. In the unlikely event of an arm breaking, they are individually replaceable, only requiring the removal of one screw, and the loosening of one other. Press nuts have been used for one-tool serviceability.
In order to maintain a low profile of 25mm (20mm is possible too, these camera plates will be available soon), there is a bay beneath the stack where you can keep your reciever or vtx out of the way, giving you an extra 6mm of effective stack height. The camera protrudes slightly below the bottom of the main plate. This does not put it in harms way as it is not lower than the arms. I have not yet managed to damage a camera in this frame.
You can mount the battery on top if you run a runcam split, or use a tetragonal battery with a gopro (you'll need a mount, I haven't made one yet), or you can sling the battery underneath and mount the gopro on top. It will be well balanced either way you go.
Detailed aesthetic design
Compact and low profile with 25mm standoffs - can esaily fit 2 board stack, 3 is possible
Space at back of frame for most vtxs to fit easily
Light weight at approx 90g complete frame weight. Use of titanium/aluminium hardware can bring this down further
Very durable: 4mm individual arms with quick replacement system (only requires the removal of one bolt, and one more to be loosened a bit), 2mm main plate and 1.5mm top plate and reinforcing bottom plate
Compatible with a wide range of fpv cameras, and provides good protection to the camera
Camera angle adjustable between 5 degrees and 60+ degrees
Battery can be top or bottom mounted (recommend bottom mount if using a gopro), strap hooks hold a 25mm strap securely in place
3d printed TPU parts such as xt60 holder can be found on thingiverse herre:
https://www.thingiverse.com/thing:2585149
Antenna mount can be found on thingiverse here:
https://www.thingiverse.com/thing:2585152
Image will be updated with new render to show the altered wheelbase soon
Detailed aesthetic design
Compact and low profile with 25mm standoffs - can esaily fit 2 board stack, 3 is possible but will be tight
Space at back of frame for most vtxs to fit easily
Light weight at approx 100g complete frame weight
Very durable: 4mm individual arms with quick replacement system (only requires the removal of one bolt, and one more to be loosened a bit), 2mm main plate and 1.5mm top plate and reinforcing bottom plate
Compatible with a wide range of fpv cameras, and provides good protection to the camera
Battery can be top or bottom mounted (recommend bottom mount if using a gopro), strap hooks hold a 25mm strap securely in place
This is the stretch X version of the Phoenix. Wheelbase is narrow accross the roll axis, and elongated on the pitch axis
This is the Stretch X arm for 5" Phoenix frame, with chamfered edges and cut along hte waeve for durability and stiffness.
In this revision, the screw slot has been replaced with a simple screw hole to protect against large torque loads acting around the outer arm screw from tearing the inner bolt slot away. While this means it now requires the removal of two screws to replace the arm, it improves durability in high-speed side-impact collisions with the ground or solid objects. The motor shaft hole is also smaller to strengthen the motor bolt pattern even further than in v1.1.
This version has had the screw slot replaced with a simple screw hole. While this means that two screws must be removed to replace the arm instead of just one, it significantly strengthens the arm against breaking at that point due to torque acting around the outer bolt in hard collisions. The motor shaft hole has also decreased in radius to further strengthen the end of the arm, though this has not been a weak point since the v1.1 revision, it seemed worth doing anyway.
4mm carbon StretchX arms for the 5 inch Phoenix frame. These are a direct swap for the TrueX arms. They provide a narrow roll axis of 140mm and an extended pitch axis of 205mm, giving a total wheelbase of 250mm.
This provided extra stability on the pitch axis, which many pilots find beneficial for race handling.
These arms increase the weight by only a few grams and are 13mm at their narrowest point.