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O.S. Engines 49-PI Type II 0.30 cu in Wankel engine
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The small O.S. Engines 49-PI Type II Wankel engine from
http://www.osengines.com/engines/osmg1401.html
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engine
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power output in kWatts
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kW / kg
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J/ccfam
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49-PI Type II
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0.934 at 17,000 rpm
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2.788
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0.663
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The Nitto range of Wankel engines
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20cc displacement
engine running on glow (Alcohol) fuel for use in an airplane.
Our thanks to Nitto Manufacturing for supplying a copy of the photograph above
and the data below.
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YEN 118,000
28 FEB 2008
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excluding Glow plug and muffler
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1.466 kg
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including the mount
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19.75 cc
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Glow
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Alcohol
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2,000 – 10,000 rpm
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approximately 2.24 kWatts
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approximately 3 HP
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APC 16” x 10”
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indication only
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8,600 rpm
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based on the above propeller when used
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about 100 cc / minute
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continuous running at full-bore
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20cc displacement
engine running on glow (Alcohol) fuel for use in a helicopter.
Our thanks to Nitto Manufacturing for supplying a copy of the photograph above
and the data below.
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YEN 118,000
28 FEB 2008
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excluding Glow plug and muffler
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1.493 kg
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including the mount and cooling fan
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19.75 cc
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Glow
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Alcohol
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2,000 – 13,000 rpm
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approximately 2.24 kWatts
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approximately 3 HP
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acceptable up to 15 kg
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please respect the power indication and do not try to fly with heavy load
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about 38.5 cc per minute
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continuous hovering with no load
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20cc displacement
engine running on Gasoline for use in an airplane.
Our thanks to Nitto Manufacturing for supplying a copy of the photograph above
and the data below.
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YEN 168,000
10 MAR 2008
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excluding muffler
including the ignition system (AMP type/full automatic spark advance) and spark
plug
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1.800 kg
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including the mount
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19.75 cc
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Gasoline
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2,000 – 10,000 rpm
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approximately 1.34 kWatts
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approximately 1.8 HP
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APC 16” x 8”
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indication only
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8,000 rpm
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based on the above propeller when used
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50 cc per minute
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continuous running at full-bore
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20cc displacement
engine running on Gasoline for use in a helicopter.
Our thanks to Nitto Manufacturing for supplying a copy of the photograph above
and the data below.
|
YEN 168,000
28 FEB 2008
|
excluding muffler
including the ignition system (AMP type/full automatic spark advance) and spark
plug
|
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1.800 kg
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including the mount and cooling fan
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19.75 cc
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|
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Gasoline
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|
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2,000 – 11,000 rpm
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|
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approximately 1.34 kWatts
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approximately 1.8 HP
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acceptable up to 10 kg
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please respect the power indication and do not try to fly with heavy load
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about 20 cc / minute
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continuous hovering flight with no load
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Contact and other information
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Notes
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The silencer made by HATTORI Model can be supplied as an optional part by NITTO
MFG. WORKS.
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NITTO MFG. WORKS can make an offer for a "Lower Frame Set" as one of the
optional items to make it easier to mount our Wankel Rotary Engines. We
recommend "Voyager GS-R" or "Z230 - R" helicopters made by JR, to which the
above mentioned optional items can be fitted. You can place your order including
these helicopters.
-
Please refer to our pamphlet in
http://www.nitto-mfg.com/english/nrsyokaieng.htm.
Contact information
NITTO MFG. WORKS
YUZO SARATANI
President
5-2-33, Wakae-Higashimachi,
Higashiosaka City
Osaka 578-0935 Japan
Tel : +81-6-6723-4311
Fax : +81-6-6723-4433
web-site:
http://www.nitto-mfg.com/
E-Mail :
nitto@nitto-mfg.com
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Cubewano announces pre-release of its Sonic30 heavy fuel UAV engine
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from
http://www.shephard.co.uk/UVOnline/Default.aspx?Action=-187126550&ID=4d55c4af-96b1-422ca5eb79d99016b1b4
Cubewano Limited, a UK company, have announced the release of its first heavy
fuel UAV engine. The engine, a 5 hp air-cooled rotary engine, incorporates
advanced materials and technology and has a bespoke fuel injection system. This
advance release enables airframe manufacturers to evaluate and package the
engine, with a view to production models being available in 3-6 months time.
Birmingham, UK April 2, 2008 -- Cubewano announce the release of the pre
production development version of its 5 hp heavy fuel engine. The engine is a
lightweight, fuel injected, 5 hp, air cooled, single rotor internal combustion
engine of the Wankel rotary type.
After many months in development Cubewano are finally happy with the performance
of their 5 hp engine to release it for sale. The engine in many respects
advances the technology of the Wankel rotary engine by utilising advanced
materials including ceramics and specialist coatings to achieve an extremely
lightweight 1.5 kg engine.
Cubewano director Craig Fletcher states: “We were convinced that the spark
ignition rotary engine was the way to go for small heavy fuel applications but
finding small enough fuel injection systems to work under these conditions
proved very difficult”. Cubewano have developed their own proprietary ECU system
for this application which includes a MAP (Manifold Air Pressure) sensor for
automatic altitude compensation.
The engine is designed to use a recirculating oil system and a lightweight ECU,
about the size of a matchbox. However, for development purposes, Cubewano have
been using a full size ECU and pre mix lubrication. The decision to release the
pre-production version is to enable airframe manufacturers to get a head start
testing and packaging the Cubewano engine.
- above and below from
http://www.cubewano.com/
About Cubewano Limited:
Cubewano, formed in 2007, design and manufacture small, high quality, high
power-to-weight ratio internal combustion engines, currently in the 3 to 7 hp
range, with multi-fuel capability including Kerosene (also known as JP8, JET-A1
and Heavy Fuel ). The company is based in the heart of British engineering in
Birmingham, West Midlands.
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The UAV Engines Limited AR741 Wankel engine
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- from
http://www.uavenginesltd.co.uk/
Design Features:
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Exceptionally high power-to- weight ratio.
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Economical fuel consumption.
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Low cross sectional area.
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Low levels of vibration.
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Long life
Background:
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The UAV Engines AR741 has an outstanding power-to-weight ratio, combined with
much longer life and better SFC, than any alternative engine.
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It has been developed from the mature UAV Engines AR731 target drone engine, to
meet the needs of small surveillance-type UAVs.
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The UAV Engines AR741 engine has successfully completed a 150 hour FAR-33 type
endurance test.
Technical Specifications:
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Single rotor Wankel-type spark ignition engine
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208 cc chamber size
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28.3 kWatt maximum at 7800 rpm
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10.7 kg without generator
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9.84 kg/hr at maximum power, 9.0 kg/hr at cruise
348 g/Watt/hr at maximum power
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Nominally zero radial vibration.
Peak instantaneous torque is 4 times mean.
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Electronic contact-less magneto. RFI suppressed HT system.
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Provision for mounting GEC/Plessey 28V, 900 or 1,500 watt
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- from
http://www.uavenginesltd.co.uk/
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Power-to-weight ratio = 2.64 kW / kg
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Fuel efficiency = 1.046 J / cc_fuel_air_mixture
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