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O.S. - OSMG0026 OSM12352 12352 531028018013 4531028018013
Manufacturer Stock#
12352
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O.S. 25LA ABN w/Muffler
 
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O.S. 25LA ABN w/Muffler
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Tower Catalog Page: 167

Stock Number
LXPUE0
Retail Price
119.99
Tower's Low Price
$79.98
Stock Status
In Stock
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Tech Notes
 
NOTES FROM OUR TECH DEPARTMENT
This is the the O.S. Max .25LA Aircraft Engine with Muffler.
Meets Requirments of Beginners and Sport Flyers.
*** TWO YEAR LIMITED WARRANTY ***

FEATURES

One-piece natural finish crankcase
Two bronze crankshaft bushings (sometimes called Oilite bearings)
Schnuerle porting (Schnuerle scavenging)
Side exhaust
Nylon backplate
#20H carb with remote needle valve assembly

INCLUDES

Expansion-Style Muffler #E-2030
.25LA Engine w/Carb and A3 glow plug
Instructions, mount template, decal sheet
Two 3x27mm screws to bolt muffler to engine

REQUIREMENTS

Glow Fuel with 5-15% Nitromethane and 20% (minimum) lubricant content
Glow starter, plug wrench and field equipment

SPECIFICATIONS

Construction: Aluminum 1-piece crankcase, piston, cylinder head,
crankshaft, connecting rod, and crankshaft. Chrome-plated
Brass cylinder.
Displacement: 4.07cc (0.249 cu. in.)
Bore: 18.0mm (.709")
Stroke: 16.0mm (.630")
Horsepower: 0.6 PS, 0.59 HP at 15,000 RPM
Weight: 7.0oz w/o muffler (9.5oz w/ muffler)
Length: 67.5mm (2.65") distance/backplate to front of drive washer
89.5mm (3.52") distance from backplate to prop adapter
Width: 29mm (1.14") width of engine neglecting mounting flanges
Distance Between Mounting Holes Same Side: 14.4mm (.56")
Distance Between Mounting Holes Opposite Side: 33mm (1.29")
Height: 74.5mm (2.93") from bottom of mount tab/top of cylinder head
Crankshaft Thread Size: 1/4-28
Recommended Props: Break In: 9x5
Trainer and Sport Models: 9x5, 9x6
Practical RPM Range: 2,500 - 16,000 RPM

High Speed Needle: 1.5 turns out from fully closed
Low Speed Needle: Tip of the needle half way across the small hole
in the FRONT of the carb body.
tlw 6/22/07
ir/jxs
updt lmm 3/27/09

– If you need more information, use these O.S. resources –
Click Here: Manufacturer's Product Web Page
Email: 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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Accessories Needed
 
COMPLETION NOTES FROM THE TECH DEPARTMENT
THIS IS THE NATURAL OS MAX .25 LA W/MUFFLER AIRCRAFT ENGINE. REMOTE NEEDLE, EXPANSION STYLE MUFFLER, #A3 GLOW PLUG, INSTRUCTIONS REQUIRES: 5%-15% NITROMETHANE AND 20% (MINIMUM) OIL CONTENT FUEL, PROPELLER, STARTING AND MAINTENANCE EQUIPMENT

Accessories for the O.S. 25LA ABN w/Muffler

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  Special Stock Number Product Description Parts Saver Eligible Tower's
Low Price
Click to Order Quantity Needed In Cart? Stock
Status
 LXK134 Great Planes Ultra Precision Fuel Filter
Qty Discount Available
3.79   In Stock
 LXHY19 Top Flite 9x5 Power Point Propeller
Qty Discount Available
2.29   In Stock
Limited Quantities
 LXJA89 Tower Hobbies TOWER Power Glow Plug
Qty Discount Available
5.99   In Stock
 LXRXC4 Tower Hobbies TOWER Power 10% Airplane Fuel Quart
Qty Discount Available
9.19   In Stock
Subtotal for this Group of Accessories: 21.26  
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Primary Accessories   Building & Field Equipment Optional Accessories

 
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