Introducing the Armattan Beaver. This one is three years coming. It's the longest we have ever spent working on a frame. Well, to be frank, the 2020 situation made us put a pause on development for a little while. Nonetheless, this design has taken a very long time and it has gone through many more iterations and prototypes than any other Armattan frame before. The best way to describe what the Beaver is about is probably to look at our design goals.
Strength: This frame needs to be strong enough to be worthy of lifetime warranty. The frames need to be able to take a beating. Thicker arms than any other previous frame, as well as thoughtful crash-protection provisions make the Beaver our strongest design to date.
Noise: Three or four years ago, blackbox readings and tuning were not much of a thing. Things have changed a lot since then. The Beaver is our first five inch design for which a big emphasis on reducing noise reaching the flight controller was devised. This is by far the stiffest frame we have ever made. The top plate is also using additional anchoring points adding stiffness throughout the entire chassis. Easier to tune for newcomers and more satisfying for folks who strive to have the perfect tune.
Modern provisions: As always, we try to adapt to new electronics on the market as to provide good building options with a variety of controllers, video links and RC links. The Beaver is our most versatile model to date. Cameras have gotten so small. Large cages seen on our previous models are no longer needed. This model has the smallest and lightest camera cage we have ever used on a design for five inch propellers. This allowed us to better balance the frame strength and weight distribution. This takes us to our next goal.
Weight: Stiffer, stronger, smarter, NOT heavier. 126g. The weight is on par or less than our previous 5 inch frames.
Ease of maintenance: Only one bolt needs to be removed to replace an arm at the field. As for the rest of the build, there's nothing complicated or overly complex to work on. It's a breeze to work on.
Looks: Finally, and always last on the list of priorities, aesthetics. We try to make good looking frames, but function comes before fashion, always. The Beaver is the best frame we've ever made and it looks the part. We chose the classic orange look, reminiscent to the iconic Armattan Chameleon. The Beaver is a completely different beast, however. It's a critical evolution that encompasses our design goals, five years later, in 2022.
Price Point: The Beaver is priced better than all of our previous high-end, freestyle frames. We're checking a lot of boxes here...
As always, a massive thank you goes to Jason Hay, our CAD guru for the fantastic help once again.
Also a big thank you to Brain 3D for their help with designing optional 3D printed parts. They have them all. Check them out here.
And for those of you who can print their own parts, free .stl files are available here: https://www.thingiverse.com/thing:5429317/files
- Frame Weight 126 grams
- Motor to Motor 235mm
- Frame Shape Compressed X
- Main Plate Thickness 2.5mm
- Arm Thickness 5mm
- Motor Mount Pattern 16x16 or 16x19 or 19x19mm
- Stack Mounting Two 30.5x30.5mm stacks(center and rear)
- Two 20x20mm stacks (4 possible positions)
- FPV Camera Mount 20mm(DJI) or 19mm Micro cam
- Max Stack Height 25mm
- Warrantied Parts All CF and alumi frame parts
- Recommended Components
- Motor Size 2306/1700kv
- ESCs Skystars KO 45amp 4in1 (M3 20x20)
- Prop Size HQprop Juicy J40 5.1x4x3
- Battery 4S between 1300mAh & 1600mAh
- 6S between 1100mAh & 1300mAh
- 1x 2.5mm main plate
- 1x 2mm bottom plate
- 1x 2mm top plate
- 1x 4mm arm core
- 4x 5mm arms 5 inch
- 20x M3 6mm 12.9 grade bolt
- 5x M3 10mm 12.9 grade bolt
- 6x Aluminum cone spacer orange
- 9x M3 12mm cup head bolt
- 3x M3 16mm cup head bolt
- 5x M3 20mm button head iron bolt
- 14x M3 nylon nuts
- 5x M3 6mm nylon standoff F/F
- 5x M2 18mm cup head bolt
- 5x M2 nylon washer
- 5x M2 nylock
- 5x M2 2.5mm cup head bolts
- 4x M3 25mm profiled aluminum standoff
- 2x M3 20mm aluminum standoffs
- 1x Left aluminum cam brace orange
- 1x Right aluminum cam brace orange
- 2x Aluminum tail posts orange
- 2x Aluminum cam saver black
- 1x Center foam
- 1x Lite grip
- 1x Air unit foam
- 4x Dog bone landing pads
- 2x White lipo strap
- 1x Universal antenna mount
- 4x Motor wire extension PCB
- 1x 25cm clear heat-shrink 20mm wide