As it stands right now, the Electric Observer EB is based on our popular gas powered version of the Observer EB.
Obvious difference is the removal of the gas engine and drivetrain, and adapting an electric motor and drivetrain.
With the help of individuals like Greg Alderman, Rusty McClintock, and Clint Akins of Flightpower, we have been doing extensive testing to come up with the best, most efficient system, matching the available electric motors to the properly geared drivetrain, giving you a remarkable amount of flight time for an electric helicopter weighing in at appx 24 Lbs RTF weight with camera and batteries mounted.
Some not-so-obvious differences that you may find are areas of lightening the ship, using the Magnum tail gearbox and a thinner walled boom, using thinner material G10 on the lower frames with lightening holes incorporated, together shaving 3/4 Lb off of the flying weight, without sacrificing durability.
Of course we've kept all the good stuff, the all aluminum head, the fully push-pull control system, and the Legendary Bergen R/C Support is built into every kit made.
We have so far tested the Hacker A50-14 motor, and the Actro 32-4. Both have been tested with Li-Manganese batteries, 2 ea of 6s2p at 7600 Mah.
Different headspeeds have been tried. The Hacker motor, with appropriate gearing, seemed to like the lower headspeed of 1350-1400, giving a solid 15-17 minute flight time.
The Actro, again with appropriate gearing, prefered a higher headspeed 1450-1600, but only giving a 13 minute flight time. The helicopter itself flew very nice at this headspeed, I almost felt like rolling it!!
We are working on pricing, but expect it to be comparable to most large electrics with a camera mount added to the cost.