AT A GLANCE
 
✅ 4-inch unibody frame
✅ Sub-250gr
✅ 15+ minute flight time
✅ Excellent gyro noise performance
✅ Encased electronics
✅ No props in view
✅ Capable of 100 mph
 
THE STORY
As a professional FPV pilot, I couldn’t find a sub 250gr drone that actually did what I needed: long flights, clean footage, and reliable FPV streaming.
So I built one.
While working on OnAirLink (yes, shameless plug: onairlink.com), I set out to design a frame specifically for long duration FPV streaming. Over a year of development later, and AIRLINK STREAM was born.
A 4-inch unibody frame that stays under 250gr, flies for 15+ minutes, and keeps the stack electronics semi-encased for protection and performance.
Long flight times don’t happen by accident. They come from careful design and very specific component choices.
 
WHAT'S IN THE BOX
AIRLINK STREAM V1 frame in T700 Carbon
The only four screws required for the stack and motor screws
Camera dampening unit
All required 3D-printed parts
Battery strap
 
No extras. No missing hardware.
 
There are 2 case options: Multi Jet Fusion (super tough premium print) and PETG.
 
WHAT IT'S FOR (and what it isn't)
This frame is designed for professional work, but it also excels at cruising, medium-range flights, and any application where efficiency matters.
This is not a freestyle frame in its stock configuration.
Can you run tri-blade props? Possibly. I haven’t tested it. If you do, drop to 3.5 inch tri-blades, 4-inch tri-blades risk overheating the motors if using 1404.
Being optimized for bi-blade props, freestyle performance isn’t the focus. What you get instead is an incredibly light, floaty feel, smooth dive recoveries, and exceptional efficiency.
This is not a 5-inch replacement. It’s a different class entirely.
Where it shines is long, clean flights, especially when streaming and chasing fast moving subjects.
 
PRICING (yes, it's expensive)
For a 4-inch frame yes, it’s expensive.
The raw frame alone costs me 3/4 of the price.
Add all prints, hardware, packaging, and over a year of R&D, and this quickly stops being a budget product.
This frame is aimed at professionals. If the price doesn’t make sense to you, it probably isn’t for you, and that’s fine. Cheaper clones will surely come along.
This isn’t a mass market product.
It’s a machine built for pros, who know exactly why it exists.
 
RECOMMENDED SETUP
This is the configuration used and tested:
DJI O4 Pro Air Unit
FlyFishRC Micro GPS (10mm M10)
RadioMaster RP3 (2.4GHz ELRS, diversity)
470µF 35V capacitor
T-Motor 1404 2900KV motors
Any 25×25 AIO rated for 35A continuous
(Tested with Foxeer Reaper 45A) - check images for case configuration for the usb port
Gemfan 4024 bi-blade props