# Gemfan D90S 90 mm ducted 3-blade propeller (1.5 mm T-mount)

> What are the dimensions of the Gemfan D90S 90 mm ducted 3-blade propeller (1.5 mm T-mount)?

- Category: Drones › Propellers
- Kind: Modern device
- Basis: Secondary source: GetFPV (copy of the maker's figures; the maker publishes none directly)
- Page: https://xemstudio.com/objects/gemfan-d90s-3-blade-1-5mm/ · JSON: https://xemstudio.com/api/geometry?object=gemfan-d90s-3-blade-1-5mm · Plain text: https://xemstudio.com/objects/gemfan-d90s-3-blade-1-5mm/sheet.txt
- License: dimension sheet CC BY 4.0 (Xem Studio); files CC BY 4.0 or their publisher's license
- Use in every chat: add https://xemstudio.com/mcp as a connector (https://xemstudio.com/use-with-ai/)

## Overall (mm)

| length | width | height |
|---|---|---|
| 90 | 90 | 5.5 |

**Exact dimensions.** True size, with no printing tolerance added.

## Notes

- Cinewhoop prop for 3.5 in ducts.
- T-mount hole spacing is not given.
- 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.

## Sizes

| dimension | value |
|---|---|
| Diameter | 90 mm (3.5 in) |
| Pitch | 3 in |
| Hub thickness | 5.5 mm |
| Bore / mount | 1.5 mm hub ID, T-mount |
| Weight | 2.3 g |
| Blades | 3 |

## Where the files are

- GetFPV: [Gemfan D90S 90mm 3.5" Ducted 3-Blade - 1.5mm Shaft](https://www.getfpv.com/gemfan-d90s-90mm-3-5-ducted-3-blade-cinewhoop-propeller-1-5mm-shaft-set-of-4.html) — web — Publisher's page; dimensions are facts

## Free STEP/STL (1 parts, CC BY 4.0, Xem Studio)

Index: https://xemstudio.com/files/hardware/gemfan-d90s-3-blade-1-5mm/index.json

- gemfan-d90s-3-blade-1-5mm-swept-disc: [STEP](https://xemstudio.com/files/hardware/gemfan-d90s-3-blade-1-5mm/gemfan-d90s-3-blade-1-5mm-swept-disc.step) · [STL](https://xemstudio.com/files/hardware/gemfan-d90s-3-blade-1-5mm/gemfan-d90s-3-blade-1-5mm-swept-disc.stl) — Swept disc Ø90 mm × 5.5 mm hub thickness, Ø1.5 mm bore — blades not modelled

## Questions

**What shaft does the Gemfan D90S 90 mm ducted 3-blade propeller (1.5 mm T-mount) fit?**

Bore/mount: 1.5 mm hub ID, T-mount; hub thickness 5.5 mm.

## Fits with

- [FPV drone motor sizes: 1104 to 3115, shaft, prop thread and mount patterns](https://xemstudio.com/objects/fpv-drone-motors/)
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- [APC 9x4.5E electric propeller](https://xemstudio.com/objects/apc-9x4-5e-propeller/)
- [APC 9x6E electric propeller](https://xemstudio.com/objects/apc-9x6e-propeller/)