New LOWER prices on RCV! In keeping with our competitive pricing policy and with the changes in the exchange rates we are reducing the prices on the full line of RCV engines. See the pricing page for details.
58 and 91 CD Features
RCV Rotating Valve Technology
Ultra Low Profile
1:1 Output Gearing
Uses Conventional Props & Engine Bearers
2 year International Warranty
Ideal for General, Scale and Fun-Fly
This new all die cast 4-stroke has been designed
to meet the demand from aero modellers who want a quality engine at competitive
prices. Its ultra low profile, good power and use of conventional size props
makes it the ideal choice for all modellers.
The RCV 4-cycle engine has
only one more moving component than a 2-cycle engine - the rotating cylinder
itself. The cylinder is suspended between two bearings allowing it to rotate
freely around the piston; the piston and crank are entirely conventional.
A gear formed around the base of the cylinder meshes with a 2:1 reduction
gear on the crank. As the piston reciprocates and the crank turns, the cylinder
rotates around the piston at half engine speed. At the top end of the rotating
cylinder there is a single port leading to the combustion chamber. This is
surrounded by a fixed timing ring with three radially arranged ports; inlet,
ignition and exhaust. This simple valve arrangement serves the combustion
chamber as the engine cycles through the conventional 4-cycles: induction,
compression, power and exhaust. Ignition is achieved through a standard 4-cycle
glow plug exposed once only during each
complete cycle. The rotating cylinder is effectively combined with the rotary
valve in a single component hence RCV - rotating cylinder valve . A shaft
attached to the cylinder rotates at half engine speed producing high torque
and facilitating use of larger and quieter scale propellers.
Use of modern materials and the beneficial
honing action between the piston and rotating cylinder minimizes any internal
wear. Without the need for complex overhead poppet valves, the 4- cycle RCV
engine design has proved to be inherently reliable.
Advantages of the RCV engine
The rotating cylinder is
in-line with the axis of rotation of the propeller, producing an extremely
streamlined shape and small footprint. The SP series fits within most small
the Propeller Starting - The engine may be started from behind the propeller
using a handheld electric starter inserted directly into a socket located
on the end of the crankshaft. This enables the operator to remain safely behind
the prop at all times.
Gearing - Enabling the use of larger, quieter and more efficient
Mounted - No need for nylon engine bearers. Easy and accurate
thrust line adjustment.
Ease of Operation
- are quality CNC machined and are easy to start and tune.
Low Maintenance - Few
parts mean built in reliability. No complex valves and rockers to seize.
Cleaning and re- assembly is straightforward.
Guarantee - Manufactured to quality standard ISO 9000 all new engines are
covered by a comprehensive 2 year international warranty. Lifetime after sales
technical support is available Free to all our customers.
Choosing The Right Engine - RCV 4-cycle
engines are direct equivalent of conventional 4-cycle engines. Just use
the engine size as recommended by your model kit manufacturer. Customer
Service - BlackFly Aero can assist with specific advice on applications.
Sales are subject to 7% GST and Ontario residents 8%PST and shipping.
BlackFly Aero products
can be ordered by sending an E-mail to us at email@example.com
or leaving a message at,
1-877-870-3552 or (705)
and we'll respond ASAP.
Shipping and taxes are extra. Insurance extra.
BlackFly Aero will accept
returns on unused merchandise in original packaging and provide refund to
the purchaser within 30 days of date of shipping, less costs of shipping
and 10% restocking charge.
RCV warrant their product
for two years from date of sale and will repair or replace the product at
their discretion. Please submit warranty registration as soon as possible
and contact RCV for warranty issues. BlackFly Aero stocks many parts for
the RCV engine line and will provide support for installation and operation.
Nothing herein is intended to supersede or contradict the manufacturers
BlackFly Aero has made
every effort to ensure that the information contained herein is accurate
and up-to-date, and can not be held liable for any errors or omissions.
By their very nature, remote control model engines can be hazardous. Installation
and construction techniques may vary making it impossible for us to control
application of the product and thereby be responsible for damage or injury
caused by its use. It is the responsibility of individuals to consider their
own safety and neither BlackFly Aero or its employees can be held liable
for any injury that may result from participation in this hobby.