Falconhobby GmbH (FALCON Propeller) Carbon 17x8 2-Blatt electric (C2E1708)
Series: Falconhobby GmbH (FALCON Propeller) Propellers for drones
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The FALCON Carbon 17x8 (C2E1708) from Falconhobby GmbH (Germany) is a two-blade carbon fibre electric propeller for fixed-wing aircraft. The designation C2E1708 stands for carbon, two blades, electric, and 17 by 8 in. It is built for electrically powered model aircraft; two-blade carbon propellers of this size are the usual design for the cruise drive of electric fixed-wing aircraft.
The diameter is 17 in and the pitch 8 in, just under half: a middle layout for cruise at brisk but not extreme speed. Two blades give the propeller better efficiency than multi-blade solutions. Carbon fibre is stiff and light and keeps the blade shape under load, which holds thrust and smoothness steady at high speed. The bore is 8.1 mm. The propeller does not fold; the blades are fixed.
The legal framework belongs to the aircraft: an electric fixed-wing aircraft stays in the open category up to 25 kg; class C4 is the class for model aircraft without automatic flight modes. From 250 g take-off mass the operator must register. Because of the injury risk from fast-spinning carbon blades, the drive must be de-energised for any work at the propeller.
On selection: the 8.1 mm bore must fit the motor shaft or the driver, and motor, cell count and speed decide whether 17 in at 8 in pitch overloads the motor. With carbon, edge damage, frayed trailing edges and dull-sounding areas point to delamination; such blades are not flown further. Before use the propeller should be balanced, because with the stiff construction imbalance excites vibration throughout the fuselage.
Technical data
Other data
| Blade count | 2correct |
|---|---|
| Diameter (inches) | 17correct |
| Folding | nocorrect |
| Hub bore (mm) | 8.1 mmcorrect |
| Material | Kohlefasercorrect |
| Pitch (inches) | 8correct |
What to check before buying
- Check the hour meter against the service records — a replaced instrument is the most common gap.
- Compare the data plate and chassis number with the papers.
- Ask about parts availability for this build year — the running costs hang on it.
A general list for this type of machine — no substitute for an inspection or an appraiser.
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