rototom
Heliman
Location: Europe
| The CG is perfect at my REVOLUTION (full in center). I have some lipoly cells (2s2p 3000 mAh, weight approx. 130 gr.) along with a special lipoly controller which always supplies the rc components with 5.6 V (weight about 30 gr.). So if somebody likes the CG more forward, just take some heavier batteries... It is enough space at the front tray to move the battery for optimized CG.
In europe we have now the situation that 1 EUR is like 1 $. Therefore, a REVOLUTION is much cheaper here than competitors... A Raptor 90 SE is listed with approx. 1200 EUR!
Of course the EUR is very strong now and will make the REVOLUTION kinda expensive in the states. For example the landing skid costs about 35 EUR (withouth VAT), the front tray complete about 42,24 EUR (without VAT). The whole project was calculated very tuff, so we have to sell some helis to bring the costs of the moulds back... no question. But the first production circle is sold out. The next one has started and will be finished in about 10 to 12 weeks.
The bar snapping is history. The main reason was the 16 gr. flybar paddle. Because of less centrifugal energy comparing to the big surface of the MAH CFK paddles, we notified flybar deformations what sometimes ended in a snapping because the flybar was running out of the track. Therefore we are now using 20 gr. or 25 gr. flybar paddles. At the TORNADO heli, we also noticed slightly deformations with 12 gr. and 16 gr. paddles, but they were not as strong as on our REVOLUTION (because of less power).
What do you mean with total dry weight?
My REVOLUTION weight is 4,62 kg with everything up like blades, rc components, canopy (but no fuel).
We didn't reached the 4.2 kg goal, because we decided to make the landing skid and the front tray a bit stronger because of the huge power of this heli. Therefore we put approx 200 gr. more material and less air to those parts.
A weight of 4,4 kg should be possible with some easier and less components than I have (for example using a GY401, no governor, no temperature monitor etc.). We also found out, that the flight characteristics is optimized at this weight (proportion power/weight).
Best regards
Thomas
PS: the english manual is available for free download at our website. |
