Gemfan Flash 7040 Tri-Blade 7" Prop 4 Pack - (Choose Color)
Availability: Available Unavailable
Product SKU: 26B-6633-BLK
Available in four colors and weighs only 7.9Gr. per prop.
Check out our wide range of 7" PROPS
- Model: Flash 7040
- Item Name: 7040 7 Inch 3-Blade Propeller
- Material: PC
- Weight: 7.9G
- Center Hole Inner Diameter: 5mm
- Paddle Disk Diameter: 178.43mm
- Center Thickness: 7.5mm
- Maximum Blade Width: 18.24mm
- Adaptation Motor: 2206-1500KV (tested motor)
- Recommended Motor: 2206
- 4x Gemfan Flash 7040 Tri-Blade 7" Prop (2 CW, 2 CCW)
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Your question will appear on the site once someone answers it.
Triblade props provide the best overall locked-in feel, but the overall weight is what dictates the motors that work best with these.
2408/2507 are basically the minimum stator size that work well with these, going larger is always going to be helpful with detailed control. Getting aggressive with P&D gains can help with the limited motor authority, but these are fairly heavy props for any motor below 38g, the limit will be hitting the motor saturation point for quick moves.
I personally still prefer the biblade (7042F) Gemfan props for my particular flying style, because 7" setups make tons of grip with just biblades, but for proper mid-range and long range builds on 2806.5 or similar motors, these are going to be excellent props.
Durability is very good, especially in clear - the only limitation is that overall craft weight is high on 7" builds, so drops from height will bend these at the hub.
The closest competitor is the HQ 7x4x3 props, which are also excellent - these seem to me to have a slight edge in top speed, but are a touch less agile at low motor RPM - both are excellent props that can be used interchangeably on the same tune.