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VINTAGE OS MAX 91 VR DF RC AIRPLANE ENGINE WITH DUCTED FAN BYRON
O.S. .91 R/C ABN DF jet engine, with fan and mount - looks unrun but selling as used, all original with 9B carb and header, no box - needs minor cleaning from storage but very nice clean l/new engine - Tower sells for $345 without fan (Byron) or mount, http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXBZ02 - check out my ratings and other RC stuff for sale!
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.
Fan units are typically manufactured by the same people who make the plane kit - a company like
Jet Hangar Hobbies (562) 467-0260 )
FEATURES: Rear Exhaust .
2-Crankshaft Ball Bearings
Drum Rotor Induction
ABN piston/cylinder (aluminum piston with a nickle plated brass
INCLUDES: One Assembled .91 VR-DF Engine w/small head.
One Exhaust Adaptor w/screws and O-ring (OSMG2709)
SPECS: Construction: Aluminum and Aluminum alloys
Displacement: 0.91 cu in
Bore: 27.7mm (1.09")
Stroke: 24.5mm (.97")
Max Output: 4.8 PS, 4.73 HP at 22,000 RPM
Practical RPM Range: 2,500 - 25,000 RPM
Weight: 662g (23.4oz)
Length: 133.5mm (5.26") from carb intake to front of drive washer
Width: 43.5mm (1.71") neglecting the engine mounting flanges
52mm (2.05") distance between mounting hole centers
Height: 103.3mm (4.07")
Needle Settings: High Speed: 2 turns out from fully closed
Low Speed: 2mm gap between the needle and spray bar
(looking down neck of carb) at full
REQUIRES: Glow Plug (O.S. #8 or #9 (OSMG2691 is recommended)
Tuned pipe (we don't carry, contact the manufacturer of the kit).
Fuel with 20% MINIMUM lubricant content and 20%-50% Nitromethane
Wildcat Ducted Fan fuel exceeds these requirements
COMMENTS: This engine is the "small head" version of the .91 VR-DF engines.
This engine is designed to operate where space is at a minimum.
This engine works w/ Dynamax or Turbax fan units.
Payment expected within 2 days or less - if you can‘t pay quickly do not bid. Paypal only for international. I normally ship within 3 days or less from payment receipt. nitro
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