Gemfan D90 90 mm ducted 3-blade propeller (M5) — dimension sheet
Source: Xem Studio, https://xemstudio.com/objects/gemfan-d90-3-blade-m5/  (sheet CC BY 4.0)
Basis: Secondary source: GetFPV (copy of the maker's figures; the maker publishes none directly)
Catalog version: 2026-10-20

Overall (mm): length 90, width 90, height 5.5
- GetFPV lists hub thickness as 5.5 mm in one place and 5 mm in another; 5.5 mm is used for clearance.
- True size, no printing tolerance added. Only published numbers are used; anything not published is said so.
- Secondary source: the numbers come from a retailer or magazine copy of the maker's specification.

dimension  value
Diameter  90 mm (3.5 in)
Pitch  3 in
Hub thickness  5.5 mm
Bore / mount  5 mm hub ID (M5)
Weight  2.3 g
Centre thickness (spec list)  5 mm

Files elsewhere (not hosted by Xem Studio; license as stated by the publisher):
- GetFPV: Gemfan D90 90mm Ducted 3-Blade - M5 Shaft — web — Publisher's page; dimensions are facts — https://www.getfpv.com/gemfan-d90-90mm-3-5-ducted-3-blade-propeller-m5-shaft-set-of-4.html

Free files (CC BY 4.0, Xem Studio; STEP + STL, 1 parts): https://xemstudio.com/files/hardware/gemfan-d90-3-blade-m5/index.json
API: https://xemstudio.com/api/geometry?object=gemfan-d90-3-blade-m5