7-inch three-blade design delivers strong thrust and authority for long-range and loaded flight
In stock
Propellers
HQProp 7x4x3 Triblade Propellers
The HQProp 7x4x3 is a 7-inch, three-blade polycarbonate propeller for long-range and mid-size FPV quadcopters.
₹449 + 18% GST
SKU: BOTBIT-PROP-02 · Best for: 7-inch long-range FPV cruising and exploration quads
Overview
About HQProp 7x4x3 Triblade Propellers.
The HQProp 7x4x3 is a 7-inch, three-blade polycarbonate propeller for long-range and mid-size FPV quadcopters. At roughly 9.7 grams per blade with a 13.5 mm hub and a 5 mm shaft bore, it is built for 7-inch frames running efficient power systems on 6S, where the larger disc area generates the thrust needed to carry GPS, larger batteries and heavier payloads while still cruising efficiently.
The tri-blade configuration gives a 7-inch quad more bite and authority than a two-blade prop, improving control in wind and during loaded climbs at the cost of a little peak efficiency. HQProp's polycarbonate is tuned to be stiff yet impact-tolerant, so the blades hold their pitch under load for clean tracking while still surviving the occasional ground strike that comes with long-range and freestyle flying.
Sold as a balanced set of four (two CW and two CCW), this prop suits long-range cruisers, 7-inch freestyle rigs and platforms that need to lift extra weight without jumping to a larger airframe. It is a sensible choice for pilots who want dependable thrust and a widely available, repeatable prop for a 7-inch build.
Key features
Why it stands out.
Polycarbonate construction stays stiff under load yet tolerates ground strikes
~9.7 g weight balances thrust capacity with manageable rotating mass on 7-inch motors
13.5 mm hub and 5 mm shaft bore fit common 7-inch class brushless motors
Balanced set of four (2 CW + 2 CCW) ready to equip a single quadcopter
Specifications
Selection facts.
| Diameter | 7 inch |
|---|---|
| Pitch | 4 inch |
| Blades | 3 |
| Material | Polycarbonate |
| Weight | ~9.7 g per prop |
| Hub diameter | 13.5 mm |
| Hub thickness | 6.8 mm |
| Shaft bore | 5 mm |
| Set | 4 props (2 CW + 2 CCW) |
Applications
Where it is used.
- 7-inch long-range FPV cruising and exploration quads
- 7-inch freestyle builds needing extra thrust and authority
- Payload-carrying quads lifting GPS, larger packs or small cameras
- Mapping and survey quads requiring stable, efficient cruise
- Windy-condition flying where larger props improve control
- Efficiency-focused 6S builds prioritising range over top speed
Buying guide
How to choose.
The 7x4x3 fits 7-inch frames with motors in the 2806 to 2807 class, typically on 6S. The three-blade layout adds thrust and control authority, which helps when lifting payloads or flying in wind; if your priority is maximum flight time on a clean long-range build, compare it against a two-blade 7-inch prop, which trades some authority for efficiency.
Confirm your motors use the standard 5 mm shaft and that the 13.5 mm hub clears your motor bell and any mounting hardware. Run a balanced set of two CW and two CCW, and keep spares because larger props carry more energy and a damaged blade introduces significant vibration on a 7-inch craft.
Inspect blades after every hard landing or strike. Polycarbonate holds pitch well for clean tracking, but nicks on a 7-inch blade are more consequential than on a 5-inch, so replace any damaged prop before the next flight to protect your motors and video quality.
FAQ
Common questions.
What aircraft is the HQProp 7x4x3 for?
It is a 7-inch three-blade propeller for mid-size and long-range FPV quadcopters, typically running 2806-class motors on 6S. The larger disc area produces the thrust needed for cruising, carrying payloads and flying steadily in wind compared with smaller 5-inch props.
How much does each blade weigh?
Each polycarbonate propeller weighs about 9.7 grams. This is appropriate rotating mass for a 7-inch motor, balancing the thrust capacity of the larger disc against the responsiveness and current draw the system can manage on a long-range build.
What is the hub and shaft size?
The hub is 13.5 mm in diameter with a 5 mm shaft bore, matching common 7-inch brushless motors. Confirm your motor uses a 5 mm shaft, which is standard for this class, and check that the hub clears your motor bell before mounting.
Why choose three blades over two for 7-inch?
Three blades give more thrust and control authority, which helps with payloads and in wind, while two blades are generally more efficient for maximum flight time. The 7x4x3 is the better pick when you want grip and lifting ability on a 7-inch frame.
Does the set work on one quad?
Yes. The four-pack contains two clockwise and two counter-clockwise propellers, exactly what one quadcopter needs. Fit the matching rotation to each motor position so the airframe is correctly balanced.
How durable is the polycarbonate?
HQProp's polycarbonate is tuned to stay stiff under load for clean tracking while tolerating minor ground strikes. Larger 7-inch blades carry more energy, so inspect them after crashes and replace any with nicks or cracks to avoid vibration.
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