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X-RES Elektro

Product Code: X-RES-E
 (2 reviews)

Price: $173.47

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The X-RES Elektro is a built-up CNC cut balsa and ply kit. It is an electrified versdion of the X-RES glider designed for the new F3-RES 2m Rudder-Elevator-Spoiler glider class popular in Germany and Austria.

The X-RES Elektro is the latest development of Alois Janowetz, the designer of many top performing models. The X-RES Elektro has pleasant flight characteristics and brilliant performance. The model is very agile and extremely easy to fly. The sophisticated design and the brilliant use of weight-optimized materials allows a flying weight of 430g and thus a wing loading of only around 11 g/dm2 (3.7 oz/sq ft) out of the box, giving amazing performance.

The large 2-part spoilers allow almost vertical descents without an increase in speed. The wing separates into three panels and the tailplane is removable making the model very easy to transport.

The CNC cut kit has very simple and robust construction. With the exception of the 6 mm CFRP rods for the wing and the GRP rocker for the moving tailplane only selected and optimized balsa and plywood are used.

All components are bonded with easily available glue and the model's construction is simple, considering the excellent performance potential. The design allows the use of commercially available and easily obtainable components.

The kit includes a colour plan and comprehensive instructions. An English translation is included/available. For more info about the X-RES see this and this RCGroups build threads.

X-RES Elektro Specifications
Wing span 2.0 m 79 in
Wing area 35.5 dm2 550 sq in
Length 122 cm 48.0 in
Flying weight from 454 g 16.0 oz
Wing loading 12.8 g/dm 4.2 oz/sq ft
Aspect ratio 11.3
Wing airfoil Modified AG
Dihedral (EDA) 12.0º
Spinner Diameter 30 mm
Centre of Gravity 75-82 mm from wing leading edge
Controls Rudder, elevator, spoilers, throttle

X-RES Elektro Typical Weights
Structure 310.0 g 10.9 oz
Receiver 6.0 g 0.2 oz
Rudder servo 6.0 g 0.2 oz
Elevator servo 6.0 g 0.2 oz
Spoiler servos 10.0 g 0.4 oz
Motor 40.0 g 1.4 oz
Prop & spinner 18.0 g 0.6 oz
Battery 50.0 g 1.8 oz
ESC 18.0 g 0.6 oz
Flying weight 454.0 g 16.0 oz

Recommended Equipment
Rudder & elevator servos Ripmax SD100, Power HD DSM44, Blue Bird BMS-101AMG, Blue Bird BMS-101DMG, Blue Bird BMS-A10H, Gening D541BB, KST X08, Ripmax SD150, Corona DS843MG
Spoiler servos (2) Ripmax SD100, Blue Bird BMS-101DMG, Power HD DSM44, Gening D541BB, Blue Bird BMS-A10H, KST X08
Receiver 5 channel rx to match your transmitter
Battery 2S 500mAh to 3S 600mAh LiPo
Motor Hacker A10 7L geared 4.4:1, ADH300L Front Mount

Reviews 2  

 Review by:

X-RES Review

X-RES Review.
The kit itself is well presented. I was pleased to see CNC routed parts instead of the charred edges and smell of laser cut which take a lot of sanding away or the edges show through any covering. Wood selection was excellent, very light but nevertheless fragile if mishandled. Take note!
Instructions were a very poor translation and not worth bothering with but give an order of assembly only. Use your own experience to build the kit. During the build I did spot a few errors on the plan, there are more formers to the fuselage than indicated and for some unknown reason the routed parts for one wing panel did not match the plan. If you keep your wits about you, interpret the photographs and think ahead the X-RES goes together without too much head scratching. However, the kit is obviously based on the pure glider version, adapted for electric power. Why different gauge pushrods for elevator and rudder are supplied beats me.
I hinged the spoilers with Litespan and the rudder with Kavan cyano hinges. To hold the outer wing panels to the central section strong Magnets were installed (not in the kit), which works fine for me, not being fond of tape on film. Wings, tailplane, fin and rudder were then covered in Oralight. The fuselage was finished with 25g/m2 glass cloth, applied with Poly C after an initial coat of sanding sealer and finally painted with Humbrol enamel to try and strengthen for the inevitable rigours of competition flying. Although commendably light, it seemed potentially fragile.
The motor was the ADH300L, on 2S, 850mA/Hr LiPo. Servos throughout were Bluebird BMS101AMG and radio Jeti. Flying weight came out at 1lb 2oz, (510g). How you hit 430g as advertised I am unsure unless that is the pure glider weight. A little lead in the nose was required even with the battery all the way forward. A 3S LiPo set up would perhaps obviate the need for lead.
X-RES is a good looking electric glider and flies great and we await some good days to put her through a few competitions. It took me a lot longer to build than I had hoped but we got there.

 Review by:

Fast shipping

Fast shipping to the US. Great service.

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