Library › Drone design › Drone frame layouts ·
H frame
What is an H quad frame? · Standard part · basis: Design rules and figures from the cited sources; example geometry by Xem Studio
Also called: h quad, hx frame, h frame quadcopter, fpv h frame, h vs x frame, racing h frame, rigid quad frame
Exact dimensions. True size, with no printing tolerance added.
- sizes
- 2 in table
Notes
- An H frame has parallel arms on a central pod; pilots find it the most rigid layout (IntoFPV), and it can keep props out of view with the camera forward (Oscar Liang).
- UAVModel lists it for racing and low profile, but heavier and less agile.
- The file is a reference example built by Xem Studio from the numbers above (Reference 5-inch build: 220 mm diagonal within Grepow's 210-250 mm class for 5 in props.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.
H frame size chart
| parameter | value or range | source |
|---|---|---|
| Layout | arms parallel, centre pod | UAVModel |
| 5 in prop frame size | 210-250 mm diagonal (motor to motor) | Grepow |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| IntoFPV forum | Frame layouts, configurations and their characteristics | web | Publisher's page; dimensions are facts |
| UAVModel blog | FPV Drone Frame Selection Guide: Geometry, Materials, and Arm Design | web | Publisher's page; dimensions are facts |
| Oscar Liang | Types of multicopter | web | Publisher's page; dimensions are facts |
Free files
★ Free files 1 parts. Xem Studio design: free to use, print and sell things from; not to be republished as files. Xem Studio Design License. index.json
| h-frame-layout | h frame layout: 220 mm motor-to-motor diagonal, 5 in props (discs show the swept area; arms and plate illustrative) | STEP · STL |
Let your AI pull this. Add
Set it up →https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=h-frame

Fits with
Questions
H or X?
Oscar Liang notes ongoing debate; IntoFPV pilots rate H most rigid.





