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Southeast FPV Knife Vertical Box 5" Race Frame
Southeast FPV Knife Vertical Box 5" Race Frame
Southeast FPV Knife Vertical Box 5" Race Frame

Southeast FPV Knife Vertical Box 5" Race Frame

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This frame is one of the best flying frames on the market. It is truly on another level. It took 4 iterations of 3 frame designs to get something that they were super pleased with. The major focus of each iteration was to increase the durability..

USA tracks are very different that what you find in the EU, so durability was a top priority. It can be made WAY more durable by using 2.5mm or 3mm CF but that would add too much weight and impact handling. Southeast FPV were able to achieve the same level durability as you would get from any traditional race frame that uses 5mm Arms.

The Knife supports 5.1" propellers, full-size, mini and micro cameras. Currently we have TPU FPV mounts in 45 - 60 degrees sold separately as well as TBS SMA AXII and Micro AXII mounts. We also have other items such as motor guards and turtle fins. For any race build it is recommended that you purchase a fin and  antenna mount.   

All Carbon Fiber is high quality Toray Twill 2x2 weave matte finish sourced from very reputable factory that is known for producing high quality frames. 

This frame is on average improving lap times by 1-2 secs!  Click here to read Colby Curtola's detailed blog post comparing this frame against a tradition frame on a track that he has put 100s of packs on with traditional frames, he is nearly 3 seconds faster on the Knife! 

Important Note:  For 20x20 stacks we recommend using the TPU adapter found on the thingiverse link below as it allows you to position upto 3 lipo straps on the bottom with total freedom to move them around without being restricted by bolts.  The holes in the bottom plate can be used, for 20x20 builds but we do not recommend it.

Click here for Installation Manual


  • 2x 2mm Front Arms
  • 2x 2mm Rear Arms
  • 2x 2mm Front/Rear Spars/Braces
  • 2x 2mm Side Spars/Braces
  • 1x 2mm Mid Plate
  • 1x 2mm Bottom Plate
  • 1x 2mm Top Plate
  • 4x 25mm Standoffs
  • 4x 12mm Standoffs
  • 4x 8mm M3 Bolts
  • 4x 25mm M3 Bolts

Weight: 79gr (Carbon Fiber Parts)

3D Parts (Available on Thingyverse)

45,50,55 Degree Fixed mount, Generic FPV Mount, TBS Stubby Mount, Axii Micro Mount, Mid Plate Spacers, Turtle Fin, 20x20 Adapter, Motor Mounts etc.

Not Included:

  • Electronics
  • Axii Micro TPU mount
  • Stubby TPU Mount
  • TPU Fin (Turtle Mode) for top plate
  • 16x 18mm M3 bolts or 20mm M3 bolts for mounting motors


Weight Reduction Tips:

It's possible to get this down into the 270-260s by using Micro Axii Antenna, RunCam Nano Racer and aluminum hardware and lighter motors..  This build he is using a 20x20 stack, TBS Nano, RunCam Racer and 2207.5 motors.