Walkera 4#3B Double Brushless Helicopter
With the 4#3B helicopter, Walkera has set the standard on micro RC helicopters. The most recent 4#3B upgrades now include a variety of brushless upgrades that by far outperform all of their competition in the single rotor fixed pitch category including a list of copycats and re-brands. In this fast paced hobby, only the most aggressive manufacturer can stay in the the forefront by incorporating new innovation in electronics, motors and batteries. Before considering the 4#3B Metal Head Brushless Helicopter you might also want to look at the new Walkera CB100, which is a cousin of the 4#3B, but has an additional stabilizing bar. In either case, you can't go wrong with Walkera's quality and precision. While other helicopters may claim to have similar features, many brands are flawed with design problems, durability issues and a total lack of "after sales" support. In this industry, only the best models are fully stocked with parts for maintenance and upgrades for improved performance.
There are now several upgrades to consider when purchasing a 4#3B. The main motor options include the Walkera Brush Main motor, the Walkera Brushless Main motor and the Turbo Ace Brushless 91416 motor (100% more pay load or 31% more power). The tail motor options include the Walkera Brush Tail Motor, the Walkera 2g Brushless Motor (no bearings) and the 2.9g Turbo Ace 29700 Brushless Tail Motor with double bearings (50% more pay load & durability).
If a TX is included with a 4#3B package, the options are the WK-2401 (Helimax Novus HMXJ2021) or the Programmable WK-2801. All 4#3B helicopters from Wow Hobbies include precision CNC metal rotor head upgrades.
All brush motors have shorter life spans due the brushes wearing out. Inherently, micro brush motors on the 4#3B brush helicopters & the re-branded Novus FP helicopters have a limited life span of approximately 20 to 30 battery cycles. To upgrade to brushless later can be expensive/time consuming so it would be wise to consider purchasing a brushless 4#3B helicopter from the very start. Helimax & Novus are registered trademarks of Great Planes Model Manufacturing Company.