electric flight uk - British Electric Flight Association - Jan Bassett's

Another recently introduced item by
Robotbirds is the nifty PJS 550R Double
Contra rotating brushless outrunner.
Stock is limited and they may have gone
by the time this is published, however,
contact them as they may get more.
The PJS 550R is designed for scale
models that need contra-rotating props,
in other words one propeller rotating left
& the other to the right. It has a
diameter of 32mm and an overall length
of 117mm and the weight is 139g.
The motors have a Kv value of 1300 rpm/v and are 100mÙ each. The suggested
propeller is 8” x 6” and you need one normal propeller and one with reverse pitch
(commonly called Left hand). The battery is 2 to 3 cell Lithium and the maximum
current is given as 21.7A per motor.
The price is a very good £69.95 +P&P. Contact details for Robotbirds on page 26.
Robotbirds have also just
introduced the Smart Charger
2020 (left), a 1 - 3 cell Lithium
Polymer charger with output
currents of 110mA, 250mA,
500mA, 750mA and 1200mA. It
is reverse polarity & short circuit
protected and measures only
90mm x 48mm x 11mm.
The input voltage range is 10.5v to 15v. It features power on LED, error LED,
charge complete LED and an LED for each cell connected. The settings are all
manual using jumpers on the right hand side. Price only £17.95 +P&P.
The final items included from
Robotbirds are 3 new carbon
undercarriage legs. They don’t state
the weight of the legs, but the following
information is available (all
dimensions in mm)
W H L Model Price
190 100 25 700g £ 8
245 120 28 1000g £ 9
290 145 35 1300g £ 13
E.F.-U.K. 27