ViperJet Composite 70mm EDF - 1050мм (АРФ)

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Customer Rated

Oct 27, 2015

Received another one of these last week , no issues in shipping :)
Retracts will go in (changesun 15v2) drop right in 15.5mm thick , xhangesun 10b v3 edf on 2600kv 6s and castle 100 amp esc . Hitec servos all around , should come out around 5lbs with 6 lbs of thrust.
CG at 76mm , video to follow.

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• Value

Customer Rated

Dec 24, 2014

Receiving for Christmas present. Opened up and gave the model a good once over. Very nice fit and finish, well packed and thus damage free. No instructions with model but I saw this on RC groups. Looks pretty straightforward. For a very low cost composite jet I would say very good.

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Customer Rated

Apr 17, 2014

Ok Flight Test : The Final Flying Weight was 2.1 Kg using a 1.7 Kg Thrust EDF on 7 Cell ( 70 mm 5 blade HET fan with 3W-25 HET motor ) consuming 50 Amp at full throttle ; Battery was Nanotech G2 A-Spec (two: one 3S and one 4S 2200 mAh) in series.

On takeoff , a small rock on the pavement broke off the left landing gear on the wing but took off with authority ; Controlling the ailerons was difficult with landing gear hanging down on one side ; Landing was smooth but very fast ; I did not deploy the Flaps on first flight to avoid any unpredictable behavior . No major damage but will try flying again soon . The batteries had 70pcnt capacity left upon landing after one loop of light . Hope to have better luck next flight .

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Customer Rated

Apr 05, 2014

First Impression: boxing good; came with cracks in the leading edge of the left duct inlet -fixed with gap filling glue. Also cracks between both air inlets and body. No box damage -this is factory cracks. The description says dry weight 950gr . True but left out the hardware package weighing 220gr : so no electronics dry weight is about 1.2 Kg. Using regular 9g servo for Ail,MG for flaps ,steering and rudder with lightest edf unit (non metal ) with 60Amp ESC lightest electric landing gear from hobby king and 4gr wheels. Total electronics without wire connectors and receiver was 440gr . Add 40 gr connectors and 15 gr receiver :total expected flying weight with a 4s(300gr ) or 6S(400gr) 2200 MaH is
:2.0 -2.1 Kg at best . Pretty heavy ,so get a strong EDF system.