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The BVM EVF

Impression Points

The "Real McCoy" For Your BVM Jet
 


Bob Fiorenze with his EVF 5012 powered Electra Jet and Flight Power hat in hand.

 

Design Objective - Matched Systems

   Optimum performance can only be achieved when the airframe and power systems are of superior design and manufacture.

   Our consulting propulsion engineer, Lee Anderson, makes sure that BVM jets have inlet and tailpipe designs that match the airframe and the demands of the Electric VioFan.

    BVM also teamed up with Flight Power USA to bring you LiPo batteries in which every cell in the system is matched in chemistry, voltage, and internal resistance.  This cell matching assures cooler running, higher output, and longer cycle life.

   The BVM EVF with Flight Power EVO batteries excels in the arena of high performance.  Our factory team road show demonstrations allow customers to verify it for themselves.

Reliability

    Bob Fiorenze traveled to the Mid Atlantic Jet Rally in Chesapeake, Va.  to renew some friendships with his northeast buddies and to get some serious flying accomplished.  With 3 sets of Flight Power EVO 1264-3B batteries and a couple of chargers, Bob logged 3 flights on Friday afternoon, 10 flights on Sat. and 4 flights on Sunday morning before noon.

   Bob is meticulous about recording his flights and attending to every detail of the model and its power system.  At 94 flights, Bob says that every part of the EVF 5012 and the Electra airframe is original and just passed another one of his rigorous preventative maintenance checks.  Bob's effort at the Mid Atlantic Rally were recognized when he won the Best Electric Jet award presented by C.D. Frank Rega.

Sound

We hear a lot of favorable comments from experienced modelers.  They really like the sound of the Electric VioFan compared to some of the other very high winding E.D.F.'s "The BVM doesn't have that toyish sound, it is more turbine like" commented one engineer type.  Although the sound was not an object of design, the relatively low emission is testimony of its efficient design.

    At the flying field, the EVF's distinct sound signature is easy to identify in the air.  The visual of the high speed passes and awesome verticals confirm the unmistakable EVF "In-Action".

 

Electric VioFan
Patent Pending

1.      Fan and Stator design by career "Propulsion Engineer" Lee Anderson.
2.      Very secure and accurately centered fan rotor retention.
3.      Inlet lip is relieved to accept F/G ducting for smooth airflow transition.
4.      Thin flange to accept the Mylar tailpipe for smooth airflow transition.
5.      Electronic Speed Control additional cooling air inlet.
6.      Streamlined fairing for exit of E.S.C. throttle and power cables.
7.      Motor and E.S.C. cooling air exhaust.
8.      E.S.C. is located inside the carbon fiber aft center body fairing for air cooling and no               
         interruption of airflow (shown cut-away).
9.      Machined aluminum motor encasement with fins and troughs for efficient cooling of motor
          and provide entrance for E.S.C. cooling air.
10.    The mounting flanges are an integral part of the injection molded carbon fiber shroud.  For
          mounting access convenience, the flanges are tilted up 5
° from horizontal.

          Shock and minute vibration absorbing rubber strips and a molded clamp enhance the
          EVF mounting system.

 11.    Injection molded carbon fiber and machined aluminum construction.

The EVF is manufactured, assembled, and test run at BVM's Florida facility.

 

The EVF shown above is available in multiple power levels.  The fan unit is the same for all.  The motor, E.S.C., and battery compliment allow these various power levels.

Systems

EVF 4010 , EVF 4012 , EVF 5012 , EVF 6215 , EVF 6416

EVF Instruction Manual