H frame — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/h-frame/  (sheet CC BY 4.0; files Xem Studio Design License, https://xemstudio.com/license/)
Basis: Design rules and figures from the cited sources; example geometry by Xem Studio
Catalog version: 2026-10-20

Sizes: see table below
- 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.

parameter  value or range  source
Layout  arms parallel, centre pod  UAVModel
5 in prop frame size  210-250 mm diagonal (motor to motor)  Grepow

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- IntoFPV forum: Frame layouts, configurations and their characteristics — web — Publisher's page; dimensions are facts — https://intofpv.com/printthread.php?tid=15838
- UAVModel blog: FPV Drone Frame Selection Guide: Geometry, Materials, and Arm Design — web — Publisher's page; dimensions are facts — https://blog.uavmodel.com/fpv-drone-frame-selection-guide/
- Oscar Liang: Types of multicopter — web — Publisher's page; dimensions are facts — https://oscarliang.com/types-of-multicopter

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/h-frame/index.json
API: https://xemstudio.com/api/geometry?object=h-frame