Built for ducts
Ducted-specific blade profiles deliver thrust and low resonance where open props would cavitate.
Gemfan & HQProp 3 / 3.5 inch
The #1 consumable — stock up by the dozen
Props are the single highest-consumption item on a cinewhoop, so we sell them by the bag. Choose Gemfan or HQProp 3 inch and 3.5 inch ducted-specific blades — shaped for thrust and low noise inside a guard. They are cheap, balanced and meant to be swapped the moment they touch something.
Why choose the Ducted Propeller Pack
Ducted-specific blade profiles deliver thrust and low resonance where open props would cavitate.
Priced to be disposable — keep a bag in every case and never end a session early.
Both brands ship balanced, so you skip the balancing jig and just bolt them on.
Gemfan for punch, HQProp for smooth — pick your flavor per build.
Missions
01
Practice
A $1 prop is cheaper than a missed session. Bring extras.
Start this mission
02
Field
Keep a bag on the lipo case and rotate bent props between packs.
Start this missionTechnical details
| Gemfan 3016 | 3 inch, 2-blade / 3-blade |
|---|---|
| Gemfan 3520 | 3.5 inch, 3-blade |
| HQProp 3x3x3 | 3 inch, tri-blade |
| HQProp 3.5x2.5 | 3.5 inch, bi/tri-blade |
| Quantity | 20–40 per bag (CW/CCW mixed) |
|---|---|
| Material | Polycarbonate / glass-filled |
| Hub | 5 mm / 1.5 mm adapter |
From our customers
“We burn through these weekly. Buying by the bag is the only sane way. Gemfan 3520s are my go-to.”
“Cheap enough to not fear crashing. HQProps feel smoother on the 3.5 whoop.”
Ready for your mission
Trust your most critical missions to the most dependable platform.
Configure your Ducted Propeller PackChoose your kit
Before you buy
3 inch for 1404 builds, 3.5 inch for 1507/2004/2006 builds. Match to your frame and motor KV.
Gemfan is snappier and tougher; HQProp is smoother and quieter. Both are ducted-specific here.
Bags ship 20–40 mixed CW/CCW so you always have a matching pair.