Let us explain our "NITTO Rotary Engine NITTO ＭＦＧ，ＬＴＤ． have started
to develop the engine with the ambition of "We want to manufacture
the full-fledged rotary engine, even for model use small size one,so that
we can share the idea, together with more people as possible, of how rotary
engine does perfectly function by our "NITTO Rotary Engine".
.Nitto Mfg. Works came out with the production model "NITTO Rotary
Engine" with the displacement 20c.c. based on Glow Fuel specifications
and started to sell locally in Japan on 1997.Since 2006, Nitto Mfg. Works
have succeeded to develop the production model with thedisplacement 20c.c.
(Amp type full automatic ignition advance circuit) based on GasolineFuel
specifications and started to sell.All of our engines have been developed,
designed and manufactured for the purpose ofradio control model airplanes
and helicopters usages, however despite of small size enginewith the displacement
20c.c., Nitto Mfg. Works have faithfully designed and manufacturedthe full-fledged
Wankel type Rotary Engine as per Dr. Wankel's basic structure without cutting
through. The apex seal, corner seal and side seal have been inserted as
a matter offact without omitting. The apex seal is dual-partitioning and
inserted.In order to faithfully materialize the Dr. Wankel's theory in
the process of the actual seal androtor etc. as the major parts manufacturing
respectively, the extremely high accurate levelor state-of-the-art technology
has been required. All the major parts of our "NITTO's Rotary Engine"
have been totally machined supported byour own accumulated technology and
machining jigs or tools developed by ourselves.Actually, Nitto Mfg. Works
have been machining all the major parts at the highest accuracywith our
special processing tools and jigs in house. Kindly look into the actual
images byaccessing to "Component Parts", so that theachievement of how high accurate machining quality can be
actually reconfirmed and understood. Especially, the finish of the rotor
should be "must-see masterpiece".NITTO 's Rotary Engine have
been faithfully designed and accurately manufactured as perDr. Wankel's
theory, and as a result, can fulfill the primary function of the rotary
All of our customers and clients have been giving us their highest evaluation
and appreciationon the performance of our "NITTO's Rotary Engine".Nitto
Mfg. Works can proudly say that we are the only one rotary engine manufacturer
in theworld who are faithfully following up Dr. Wankel's theory and making
the full-fledged rotaryengine without omitting any of his basic structure,
among the small size rotary engines.Nitto Mfg. Works have been manufacturing
2 types of Wankel Rotary Engine, consisting of 4 models as follows:
"NR-20EP" Glow (Alcohol) Fuel
specification, Displacement 20 c.c. for Airplanes
"NR-20EH" Glow (Alcohol) Fuel
specification, Displacement 20 c.c. for Helicopters
"NRG-20EP" Gasoline Fuel
specification, Displacement 20 c.c.(Amp type) for Airplanes
"NRG-20EH" Gasoline Fuel
specification, Displacement 20 c.c.(Amp type) for Helicopters
Kindly refer to the catalog (PDF file) in our home-page for the pamphlet
and please feelfree at any time to ask if you have any questions by E-Mail
In our Customers' evaluations
1) The finish of our engine is very attractive in appearance, at first,
when unpacked fromon delivered.
2) Some of them has reported to us after observing closely for a week that
it is so nice and it really is a shame to run the engine actually by mounting
on the air frame, it had better keep displaying forever.
3) The other has come back with emotion, calling us all the way by the
phone to report on "quiet purr of the engine", "extremely
less vibration" and "the better response" etc.after actually
mounting on the air frame and starting our "NITTO's Rotary Engine",
which are the characteristic with the rotary engine.4) Most of our customers
have been telling us that the rotary engine is so suitable forpractical
use like this, or the understanding for the rotary engine had better be
5) From our customers for years, "NITTO's Rotary Engine" has
been running with extremelyless vibration. He could not totally find out
any trouble on the air frame caused by the engine vibration, despite fixing
NITTO's Wankel Rotary Engine Glow Fuel specification20 c.c. directly to
the stunt air frame after flying 190 times. According to his experiences,
he was forced to see cracks on the air frame caused bythe engine vibration
after flying 60 times of 4 cycles engine Glow Fuel specificationDisplacement
20 c.c. so far. Many people touched by hand with the main wing during our Wankel
Rotary Engine running and were so surprised because of no real vibration.
6) When you mount our "NITTO's NR-20EP" on the airplane, the
powerful flight can be enjoyed, as our Wankel Rotary Engine can revolve
the propeller [16" x 10"], made by APC, maximum 8,600 rpm
(when nitromethane 15% is fueled).
At the same time, our customers can also enjoy the comfortable flights,
because the exhaust sound from the engine is always very mild due to rotary
7) Some of our customers have been enjoying the helicopter, total equipped
weight 15 kg,on the condition of Rotor Blade 790 mm (rotor blade diameter
1,800 mm) Gear Ratio8.0 (88:11) by mounting our "NITTO's NR-20EH"
Wankel Rotary Engine.(by nitromethane15% fuel). In case of using for spraying
of agricultural chemicals and aerial photography,sometime the payload is
about 8.5 kg after deducting the air frame weight. (In case of using "NRG-20H"
engine, about 9 kg max. as the total weight is recommendable.)
(Originally, our engine is developed on the assumption to fly without loading
any cargo (total weight abt. 6.5 kg). Therefore Nitto do not recommend
to fly with the cargo(total weight 15 kg).
8) The surprisingly quiet hovering can be enjoyed when the silencer made
by HATTORI isused (Nitto are recommending as optional). Our customers
have been enjoying to hear the wind roar (brattle) of rotor blade which
used not to be heard by the engine sound.Our customers have enjoyed, together
with the beautiful hovering without the engine vibration, just like the
real helicopter is flying. Nitto Mfg. Works have developed the engine
with the serious desire of "Let's experience the beauty and significance
of Wankel Rotary Engine together with customers as many as possible"
and "Let's popularize Wankel Rotary Engine throughout the world"
have been strongly supported by many customers. Nitto Mfg. Works, having
the above-mentioned evaluations and encouragement from manycustomers who
have been actually operating our NITTO's Wankel Rotary Engine, do believe
that our thoughts have been well shared by so many customers so that Nitto
Mfg. Works can aggressively promote our manufacturing and marketing of
Wankel Rotary Engine fromnow on.Please try to experience and enjoy the
beauty of Wankel Rotary Engine by yourselves.Please use "NR-20EP"
or "NR-20EH" Glow Fuel specification when you start to experience
the amazing power of the Rotary Engine. When you want to minimize the displaced
smoke or want to save the running cost of the fuel, Nitto think you had
better use "NRG-20EP" and "NRG-20EH". Your inquiry
is always welcome.