L-39 Ducted Fan Airplane Overview

fastie — Thu, 09 Oct 2008 00:43:25 -0500

Ready for action

The L-39 Ducted Fan ARF Airplane from ElectriFly is a sport scale ducted fan rc airplane with excellent performance and awesome scale looks. The power system included is an efficient and powerful in-line brushless motor mated with the ElectriFly "Hyperflow" system. As the videos show on the ElectriFly website, this is an easy to build and impressive performing model complete with a nice display stand for your office or home.

L-39 has a convenient magnetic hatch

Looking at the construction characteristics of this plane, it has some very nice features which contribute to it's sport flying capabilities. First, it is constructed of "Aerocell" foam which keeps the weight lower, but this foam also has good strength which equals an airplane with good strength-to-weight ratio. In modeling airplanes, this is key to top performance. A side benefit of this foam is that you can easiely repair a mishap with regular CA glue and not have to use foam safe CA as per ElectriFly's website. Second, the model has an excellent ducted-fan system complete called "Hyperflow" complete with using an Ammo brand brushless motor. These motors are efficient and you then have a powerful, yet light propulsion system. The L-39 has good attention to detail with it's nice finishing scale looks and also some detachable armaments for when you have the plane on it's stand. For the field the L-39 has easily accessed battery compartment with convenient magnetic latches. The only downside I see to this plane, is that you probably need to be an advanced intermediate to an expert RC pilot to handle the speed and snappy performance. Beginners should stay away from this model until they gain some flight time with a sport trainer. Be sure to checkout all the details and videos on ElectriFly's website.

SPECIFICATIONS:

Showing components in kit

Wingspan: 25 in (635 mm)
Wing Area: 141 in² (9.1 dm²)
Weight: 17.5-18.5 oz (500-520 g)
Wing Loading: 17.9-18.9 oz/ft² (55-58 g/dm²)
Length: 31 in (780 mm)
Includes: HyperFlow Ducted Fan Unit with 20-40-3500 Ammo In-Runner Brushless Motor
Requires: 3-channel radio w/3 micro servos, 25A brushless ESC, 910-1250mAh 11.1V LiPo battery

military

L-39 Ducted Fan Airplane Overview

SPECIFICATIONS: