Delta-V 15 69mm EDF Free Shipping and Stocked in USA* (Requires Assembly) Delta-V 15 EDF Manual Key Features High-performance, efficient design with quick assembly time Injection molded, high strength fiberglass-filled Polyphenylene Sulfide [PPS] plastic Factory-balanced 69mm 5-blade rotor design and aluminum spinner Includes center body fairing to reduce drag Designed for 3S-4S Li-Po batteries Can accept motors with 28mm diameter Purpose-built for recommended E-flite BL15 Ducted Fan Brushless Motor, 3600Kv (EFLM3015DF) Overview E-flite's Delta-V 15 69mm EDF (EFLDF15) electric ducted fan unit is an ideal choice for products such as E-flite’s BAe Hawk 15 DF and other similar sized ducted fan airplanes. The Delta-V 15 69mm EDF is also an ideal choice for ducted fan airplanes requiring 68-70mm diameter fan units. The BL15 Ducted Fan Brushless Motor, 3600Kv (EFLM3015DF) is purpose-built for this Delta-V 15 69mm EDF and both products will provide great performance. Specifications: Rotor Diameter: 69mm (2.7 in) Shroud Outer Diameter: 73.5mm (2.9 in) Shroud Length: 58.3mm (2.3 in) Shroud Length (Including Intake Ring): 72mm (2.8 in) Center Body Inside Diameter: 28.3mm (1.1 in) – designed for 28mm motor Overall Weight: 88g (3.1 oz) Performance Data (Measured using BL15 DF Brushless Motor) Recommended Motor: BL15 Ducted Fan Brushless Motor, 3600Kv (EFLM3015DF) Static Thrust: 1.7 lbs on 3S (11.1V); 2.8 lbs on 4S (14.8V) RPM: 31,000 on 3S (11.1V); 40,000 on 4S (14.8V) Velocity: 71 mph on 3S (11.1V); 102 mph on 4S (14.8V) Watts: 305 on 3S (11.1V); 644 on 4S (14.8V) Current: 29A on 3S (11.1V);46A on 4S (14.8V)   EDF unit only $29.95  * includes shipping in Continental USA ONLY (Canada, Hawaii, Alaska, Guam, Puerto Rico, Europe extra)