O.S. Engine OS-15638 55HZ Hyper Helicopter Engine with Power Boost Pipe  [OS-15638]

O.S. #15638 - 55HZ HYPER w/Power Boost Pipe 55 (OS-72144000)
Price:
USD$380.00
Brand:
O.S. Engine
Model:
OS-15638
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Unleashing the Power of the O.S. Engine OS-15638 in Helicopters

The O.S. Engine OS-15638 55HZ Hyper is a game-changer for RC helicopter enthusiasts. Designed specifically for 50-class helicopters, this engine pushes the boundaries by delivering power comparable to a 60-size engine, making it an ideal choice for those who demand high performance in 3D flights. Its compatibility with existing 50-size mounts ensures easy installation without modifications, allowing hobbyists to upgrade effortlessly.

The Engineering Behind the 55HZ Hyper

At the heart of the 55HZ Hyper is its innovative design, featuring a new rear bearing that enhances durability and stability at high speeds. The dual needle 40L carburetor, paired with a four-arm throttle lever, offers precise control and adaptability with various servo brands. This meticulous engineering ensures the engine not only performs exceptionally in demanding maneuvers but also maintains stability during idling and hovering.

PowerBoost Pipe: Enhancing Performance

The included PowerBoost pipe is tailored for the Max-55HZ Hyper, optimizing exhaust flow for superior performance across the RPM range. Its polished aluminum finish not only adds aesthetic appeal but also contributes to effective heat dissipation. This exhaust system is crucial for achieving the high RPMs necessary for advanced aerobatics while ensuring smooth transitions during hover and idle phases.

Specifications

  • Displacement: 8.93cc / 0.55cu.in
  • Bore: 23mm / 0.91 in
  • Stroke: 21.51mm / 0.85in
  • Practical RPM: 2,000-20,000 RPM
  • Output: 2.1ps/17,000 RPM
  • Weight: 408g / 14.39oz
  • PowerBoost Pipe Length: 9.6" (244mm)
  • Diameter: 1.7" (44mm)
  • Exhaust Outlet Diameter: 0.35" (9mm)

The O.S. Engine OS-15638 55HZ Hyper is perfect for experienced pilots looking to elevate their 3D flight capabilities. Its robust construction and advanced features make it a reliable choice for competitive flying and hobbyists seeking top-tier performance in their helicopter models.

While it offers exceptional performance, it's best suited for intermediate to advanced users due to its power and tuning requirements.
Yes, it fits standard 50-class mounts and silencer setups without modification.
Regular cleaning and lubrication are recommended to maintain optimal performance and longevity.

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