Hello All

a bit quiet lately working behind the scenes on a few interesting things. Some of you are doing the same from what you have mentioned to me. As soon as we are all ready, it will make interesting viewing.

As an update on engine specs for the 301, some tests have been completed. In summary - The Mega 16/7/4 motor will work for the 301 on 1 3S battery. Technically it is not as good as the Hacker B20, but I like the option because of the lower cost, the Alfa aluminum adapter (3.2 mm) does not have to be machined and one battery is required.

More work on Frontier shortly.

Brushless motors -Mega 16/7/4 or Hacker B20-15L.

Which motor?

The Hacker motor is the superior performing motor. However it comes at a higher price than the Mega motor and requires 2x2S batteries. Alternatively the Mega at a lower cost, on one 3S battery will provide good performance.

Mega motor (option #1)

Two Mega 16/7/4 brushless motors on a 3S setup, in the 301 cowling, produces around 410g of thrust at 13.8 Amps at 143 watts per motor. (Order the 3.2 mm Alfa fan aluminum adaptor for the Mega motor).

Batteries -Mega option

Either

3S Poly-Quest PQ-3300XP 20-30C - 3300mAh,
3S Hyperion HP-LVX3300 20-30C - 3300mAh

Hacker motor (option #2)

Two Hacker B20-15L, Kv 3700 motors on a 2x2S setup, in the 301 cowling, produces around 510g of thrust, 13.5 Amps at 185 watts per motor. (Order the 2.0 mm Alfa fan aluminum adaptor for the Hacker motor).

Batteries -Hacker option - two 2s Lithium Polymer Poly-Quest 2100-3300mAh batteries wired in series. Using 3300 mAh battery packs will produce a flight time of around 15 minutes (with the model flown slow and scale like). However, this also produces a heavier model required to fly faster. 2100 mAh packs will provide a lighter model with flight times of around 10 minutes. 2500 mAh packs sits mid range.

Poly-Quest batteries

2 x 2S Poly-Quest PQ-2100XP 20-30C Packs- 2100mAh
2 x 2S Poly-Quest PQ-3300XP 20-30C Packs - 3300mAh


Hyperion batteries -slightly higher discharge rates

2 x 2S HP-LVX2100 20-30C Packs - 2100mAh
2 x 2S HP-LVX3300 20-30C Packs - 3300mAh

Ian.