the model as much as possible when slipping through ground effect on the way to touchdown is the best way to safely bring this aircraft back to Earth. Given the model’s ability to use battery packs ranging in size from 1,000 mAh all the way up to 2,200 mAh, each pilot can determine his or her personal comfort zone in the delicate balance between longer flight durations and heavier wing loading. The latter option unavoidably includes a higher net stall speed and more challenging hand launches.

The 4,500 Kv brushless outrunner makes efficient use of a three-cell 1,600 mAh battery. The 64 mm impeller, although limited to five blades, sounds surprisingly smooth and balanced.

using one’s left hand to make the toss allows the right hand to remain positioned on the transmitter in order to immediately make any needed corrections to the pitch and roll axis. The world of EDFs is currently dominated by high-blade-count impellers. Although pilots generally prefer the “whooshier,” ear-friendly acoustics produced by these EDF units, they typically require a larger ESC and battery. Freewing’s decision to equip this

64 mm Thud with a legacy five-blade impeller, with its inherently lower current draw, helps to keep the wing loading light and the price point low. Pilots will be pleasantly surprised to find that this lower-blade-count fan does not sound half bad. This is no doubt in part because the Motion RC product listing for this model indicates that the Freewing 64 mm EDF is dynamically balanced at the factory.

Although the calculated 21.9 ounces per square foot worth of wing loading (or a wing cube loading of 25.2) suggests that the Thunderchief would best be flown by pilots with an intermediate to advanced skillset, the numbers do not always tell the whole story. When flown on a smaller, lighter LiPo battery pack, the F-105 offers a precise, predictable, and stable EDF platform.

The thrust produced by the stock five-blade 64 mm power system allows

44 PARK PILOT [Summer 2018]

the little Thud to handily cruise around the pattern at throttle settings as low as 50%. Even at slower speeds, this model demonstrates a surprising amount of stability. Rolls are axial and quick when performed on high rates. When it is time to land, pilots will appreciate the thick, clear plastic landing skid that is designed to protect the EPO foam fuselage when landing on rough grass.

The large ventral fin at the rear of the fuselage encourages pilots to hold the F-105 off as long as possible. Slowing

EDF enthusiasts who gravitate toward obscure, infrequently modeled jets are sure to enjoy Motion RC and Freewing’s collaborative creation of a new series of nicely priced 64 mm EDF jets. Pilots who are hungry for yet more aircraft in this series will be pleasantly surprised by the plethora of unique models reported to be making their way down the development pipeline. An optional set of steerable, fixed landing gear can be purchased for $10. Although it somewhat detracts from the F-105’s pleasing scalelike aesthetics, the gear set will allow pilots spooked by the thought of hand launching their jets to perform conventional rise-off- ground departures and arrivals. Should a pilot’s Thud go thud, Motion RC stocks the spare parts needed to get it back into the air!

There is no mistaking the rakish intakes of the F-105 Thunderchief! Keeping much of the receiver and servo wiring tucked forward and out of the airflow will allow the functional inlets to feed the fan with the cleanest, most undisturbed air possible.

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