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Old May 30, 2006, 10:48 AM
Jim T. Graham is offline
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United States, TN, Nashville
Joined Mar 2002
12,873 Posts
**NEW** Great Planes ElectriFly XPD-8 EP ARF Jet & HyperFlow Ducted Fan Unit

**NEW** Great Planes ElectriFly XPD-8 EP ARF Jet & HyperFlow Ducted Fan Unit

A new take on ducted fan technology!

Finally, a ducted fan plane that doesn’t disappoint! Great Planes engineers set out to develop an easy, effective ducted fan system. The XPD-8 ARF is the end result of their efforts: a sleek, super-fast R/C jet for intermediate-level pilots who want to have fun at an affordable price!

• Comes prepainted; flight-ready in only 1-2 hours.
• Molded of durable EPS foam for smoothly contoured lines, and is totally repairable.
• Can fly in winds of up to 20 mph.
• A high-quality hardware package is included.
• Available with or without ducted fan unit and brushed motor.

• Wingspan: 28 in (710 mm) • Wing Area: 210 in² (13.5 dm²) • Weight: 11.6-13.9 oz (330-395 g) • Wing Loading: 8-9.6 oz/ft² (24.5-29.4 g/dm²) • Length: 15 in (380 mm) • GPMA1865 includes: HyperFlow™ ducted fan unit w/370 brushed motor • Requires: 3+ channel radio w/micro receiver and 2 micro servos, 20-25A ESC, elevon mixer or transmitter capable of elevon mixing, 640-1250mAh 3S Lithium-Polymer battery, LiPo compatible charger (GPMA1867 also requires ducted fan unit and brushed motor)

Flight specs:
Straight and level top speed = 56 mph
“After Dive” straight and level top speed = 67 mph
Climb angle = 60°
Retail Street
GPMA1865 XPD-8 EP Ducted Fan ARF w/HyperFlow DF $139.99 $99.99
GPMA1867 XPD-8 EP Ducted Fan ARF w/o DF $99.99 $79.99

The secret to the XPD-8 ARF’s success is the high-tech HyperFlow ducted fan system! Until now, most ducted fan units were developed by R/C modelers, relying on existing information. The HyperFlow system was developed by an Aerospace engineer — starting from scratch. By utilizing state-of-the-art computer modeling and flow analysis, the necessary parameters for high performance were identified before manufacturing even began — eliminating the “trial and error” process!

• The fan system produces 8.5 oz. of static thrust at 29,000 rpm on 11.1V and 1250mAh.
• Sell the HyperFlow unit as a performance-boosting retro-fit for other electric airplanes.
• Available with or without 370 brushed motor, and can be adapted to use a 20 mm or 24 mm brushless motor.
• Suggest coupling the HyperFlow with 4-cell LiPo batteries and the Ammo 20-40-9500 brushless motor (GPMG5140) to produce an outrageous 19.90 oz. of thrust at 43,000 rpm!

Retail Street
GPMG3910 HyperFlow Ducted Fan Unit $29.99 $19.99
GPMG3911 HyperFlow Ducted Fan Unit w/370 Brushed Motor $39.99 $29.99

IN STOCK: Mid-June

For more information please visit
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Old Mar 26, 2015, 05:13 PM
a rourke is offline
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Australia, NSW, Freshwater
Joined Jul 2003
6 Posts

It may have been designed by an eminent aeronautical engineer but boy has it had problems!! Still waiting for a reply from great Planes as to weather they have
Improved production & balance issues as they seem to be bringing the HYPERFLOW fan back into use in new airframes after 6 years.
Come on great Planes-- how about some great after market service!!!
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