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Instruction Manuals:	Manual 1 (301 KB)
Tower Catalog Page:	196
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The O.S. Ducted Fan engines are designed to develop high power at high RPM.
These are used in jet (Ducted Fan) models where the engine drives a turbine-
like impeller (compressor) that draws a large quantity of air through a shroud
to create thrust.
         These engines are NOT covered under the O.S. 2-year warranty
(due to the high-performance nature of this engine, reliability is sacrificed).
The Ducted Fan DOES NOT come with this engine. One must purchase the fan to fit
BOTH the engine size and the specific plane (these fan units are
typically manufactured by the same people who make the plane kit - like Jet
Hangar Hobbies (562) 467-0260

FEATURES:
   Rear exhaust                           Schnuerle Porting
   2 crankshaft ball bearings             2-piece crankcase
   Disc valve induction                   Rear-mounted carburetor
   ABC piston/cylinder (an Aluminum piston with a Chromed Brass cylinder)
   Purple anodized head                                                       .

INCLUDES:
   Operating and break-in instructions
   O.S. decal sheet
  "O.S. Engine Line-Up" poster

SPECIFICATIONS:
   Construction: Aluminum and Aluminum alloys
   Displacement:  7.45cc (.0455 cu in)
   Bore: 22.0mm (.866")                     Stroke: 19.6mm (.772")
   Max Output: 2.5 BHP at 23,000 RPM        Weight: 470g (16.6oz)
   Practical RPM Range: 2,500 - 28,000 RPM
   Length: 116mm (4.57") length from carb intake to front of drive washer
   Width: 35mm (1.38") neglecting the engine mounting flanges
          44mm (1.73") distance between the mounting hole centers
   Height: 91mm (3.58")
   Crankshaft thread size:  1/4-28

   Needle Settings: High Speed: 1-1.5 turns out from fully closed
                    Mixture Control (low speed): 2.5 turns out from fully
                                closed

REQUIRES: A Glow Plug (O.S. #8 (OSMG2691) is recommended)
          A tuned pipe (MACG1140), coupler, and header.
          Fuel with 20% MINIMUM lubricant content and 20%-50% Nitromethane
          ** Wildcat  5%-25% Ducted Fan fuels we carry meet this requirement
          Fan unit (depends on ducted fan airplane kit)
                                          JBN and eke 1-15-98
                                                                          ir/le
                                                                updt lmm 4/6/09
COMMENTS:
The big difference between this engine and the previous .46 VR-DF is that
this .46VX-DF has a higher power rating than the VR-DF.



– If you need more information, use these O.S. resources –

Click Here: Manufacturer's Product Web Page
E-mail: enginesupport@hobbico.com
Web Site: http://www.osengines.com/
Phone: 217-398-8970


 
Postal Address:
O.S.
3002 N. APOLLO DRIVE, SUITE #1
CHAMPAIGN, IL 61822  








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