Y6 coaxial — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/y6-coaxial/  (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
- Y6 puts two coaxial motors on each of three arms, giving hex-like lift in a tricopter footprint with no yaw servo (Oscar Liang).
- Coaxial props lose ~10-20% efficiency because the lower prop works in the upper's wash.
- The file is a reference example built by Xem Studio from the numbers above (Illustrative.). Sizes the sources do not fix are illustrative; scale the example to your own vehicle.

parameter  value or range  source
Coaxial efficiency loss  ~10-20%  Oscar Liang

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- Oscar Liang: Types of multicopter — web — Publisher's page; dimensions are facts — https://oscarliang.com/types-of-multicopter
- r/multicopter wiki (mirror): Anatomy of a Multicopter — web — Publisher's page; dimensions are facts — https://r.datuan.dev/r/multicopter/wiki/anatomy

Free files (Xem Studio Design License, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/y6-coaxial/index.json
API: https://xemstudio.com/api/geometry?object=y6-coaxial