GEARED 600/BUGGY MOTORS
The best low-cost set-up we have
found for the BVR Kits 45" Tucano using readily available components is a Permax 600 7.2V can motor driving a 3.33:1 MPJ gearbox
(part no. 8053). These items are available from www.aircraft-world.com very cheaply.
The Tucano achieves its EXCELLENT
slow-speed handling partly due to the fact that flat sheet wings do not "tipstall" like many wing sections tend to, but also
due to the use of a large, pitchy propeller.
Using a long ratio such as 3.33:1, an
12 inch prop such as an APC "E" 12 x 10 can be used whilst maintaining current levels of around 25 Amps on 8 cells- this
way motor life is prolonged, even using a can motor.
If you want even better performance
you can use 10 1700CPs and go down to an APC "E" 11 x 9 prop whilst maintaining a similar current level. In each case a 35
Amp speed controller (from a Twinstar or Twinjet) is sufficient.
For a significant performance
boost, the Kyosho 16-turn buggy (also available from www.aircraft-world.com) motor has a higher RPM per Volt, but it is much more efficient than the can motor so current levels
are about the same. This is the optimum brushed set-up for this model.
Naturally the oncoming brushless revolution is upon
us and several highly-efficient motors will go into this model.
Perhaps the best example is the AXI 2820/10 which will make
your Tucano perform better than most i.c. models! On 8 cells it will go vertically up on an APC "E" 11 x 8.5, or on 10 cells
and an 11 x 7.
In each case current is around 30 Amps and you will only use
full throttle for squirts of vertical performance! As a result flight duration is usually 10mins+ on 2400s and 15 mins+
on the new GP or Sanyo 3300 NiMhs.
smaller 2814/10 is also ideal for less flamboyant performance. On 7 or 8 cells (i.e. Twinstar or Twinjet battery pack) and
an APC "E" 9 x 6 or 9 x 5 respectively, the performance is more than adequate and duration is unbelievable!