Introducing

Flight Power
5s 2p 6400, 30c Saddle CellsTM

6 1/2 minute flights with great 30c performance are now a reality for a BVM EVF 4010 10s system.

We have been test flying these new offerings and are very impressed with their ability to deliver power and flight time.

The test vehicle is this missile equipped, aggressor painted, standard fin Electra Jet. The 3 3/4 lbs. of batteries contributes to a total flying weight of 14 1/4 lbs. With proper throttle management, we accomplish very impressive high energy flights and consume less than 80% of the available 6400 mah capacity.

The 30c rating can really deliver the "punch" and yet after the flight, battery temperatures are relatively cool at 110° - 115° F with an ambient temp of 85° F.

Since there is a measured amount of energy available from the batteries, we find it helpful to set a throttle-to-throttle mix in the transmitter activated with a mix switch. This is a battery saving technique.

The correct numbers for the Spektrum 7: set the throttle ATV at Hi = 85% Low = 70%, then select a mix menu and dial in a thro-thro mix with -30 for the high position and 0 for the low and then activate the mix switch "on".

With the mix switch "on", the in-flight full throttle position will produce about 11# of installed thrust (Electra Jet) moving the switch to the "off" position at full throttle will provide a 1+ lb. boost in thrust - almost like having an afterburner.

Note: The 6400 Saddle CellsTM are a bit thicker than the 5000 series and will cause a 1/16" deflection in the mylar tailpipe when installed in an Electra Jet or Sabre. This does not impair performance.

These batteries will also fit into the Ultra Viper, Aggressor III, The Maverick, F-80, T-33 and BVM F-16. We test ran them in an Aggressor III with a 1/8" pinch per side of the tailpipe and still obtained 12+ lbs. of installed thrust.

Make thin plywood shelves to fit under the batteries (in a sport jet) and glue to the wing spar formers. Use adhesive backed velcro BVM# PM-SR-0002 on the bottom edge of the batteries to hold them in place. The front end of the bottom should be about 1" aft of the fan shroud.

Install the Saddle CellsTM with the center mounted cells facing outboard, taking full advantage of the convex curvature of the fuselage. They are secured with adhesive back velcro on the bottom edge. Then fan pressure inside the tailpipe will hold the batteries outboard.

David Plaine from Bel Air, M.D.

David recently joined the BVM team and will soon enjoy his first winter in Florida. David is an experienced jet builder and flyer at age 19.

6400 Saddle CellsTM Dimensions:

Length = 6.6"
Height = 3.6"
Width = 1.5"
(At Center)

Price and availability info soon!