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O.S. - OSMG1533 OSM38300 38300 531028021648 4531028021648
Manufacturer Stock#
38300
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  Tech Notes

Accessories Needed

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O.S. GT33 Gasoline Engine
 
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O.S. GT33 Gasoline Engine
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On-line Videos: Video 1 (24 MB) Video 2 (YOUTUBE)
Instruction Manuals: Manual 1 (4.7 MB)
Tower Catalog Page: 199

Stock Number
LXBCKA
Retail Price
699.99
Tower's Low Price
$419.97
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Stock Status
In Stock
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Tech Notes
 
NOTES FROM OUR TECH DEPARTMENT
This is the GT33 Gasoline Aircraft Engine with Muffler and Rear Carburetor
from O.S. Engines.

FEATURES

Electronic ignition accepts LiFe, LiPo, NiCd and NiMH power and also
offers low voltage warning
Rear mounted Walbro carburetor-NOTE the choke valve rod shown on
page 12 of the manual is not included
Pitts style E-5030 aluminum muffler black in color, 5dB lower in
noise than the competition
Two year limited warranty through Hobby Services beginning at date of
purchase

INCLUDES

GT33 Gasoline Aircraft Engine with Muffler, Carburetor, CM-6 Spark
Plug and Instruction Manual

REQUIREMENTS

2-cycle oil, see SPECS
Ignition Battery: 4.8-6.0V NiCd or NiMH, 6.6V LiFe or 7.4V LiPo pack
LiPo battery requires voltage regulator
Propeller: 18x10-12, 19x10, 20x8-10, use 18x8 prop for break-in
Mounting standoffs, length depends on aircraft
Gasoline safe fuel tubing and fuel filter

SPECIFICATIONS

Displacement: 2.013 cu in (32.98cc)
Bore: 1.417" (36mm)
Stroke: 1.276 (32.4mm)
Crankshaft thread size: 5/16-24
Total Weight: 2.7lbs (1230g)
Engine, 34.72oz (984g)
Muffler, 5.65oz (160.5g)
Ignition: 3.70oz (105.0g)
RPM Range: 1,800 - 8,000
Output: 3.9 PS, 3.85 HP/9,000rpm
Gasoline/Oil Mixture: 30:1 - 50:1
25:1 fuel/oil mixture if brand of oil states 50:1 mix
Replacement Spark Plug: NGK CM-6 or Denso U20M-U
Height, Crankshaft Center to Exhaust Outlet: 6.1" (156.1mm)
Height, Crankshaft Center to Muffler Body: 4.1" (105.4mm)
Height, Crankshaft Center to Muffler Mounting Holes: 2.1" (54.4mm)
Height, Crankshaft Center to top of Cylinder Head: 4.3" (109.2mm)
Length, end of Crankshaft to Carb: 7.7" (196.6mm)
Length, end of Crankshaft to Backplate: 6.2" (158.9mm)
Length, end of Crankshaft to Center of Engine: 4.9" (125mm)
Length, Prop Washer to Center of Engine: 3.3" (84.5mm)
Length, Prop Washer to Carburetor: 6.1" (156.2mm)
Length, Prop Washer to Backplate: 4.7" (118.5mm)
Width, Muffler Body: 4.5" (114mm)
Width, Crankshaft Center to Exhaust Outlet: 1.2" (31.5mm)
Cylinder Head Diameter, front to back: 2.5" (62.8mm)
Cylinder Head Diameter, side to side: 2.6" (66mm)
Mounting Hole Centers top to bottom: 2.1" (54mm)
Mounting Hole Centers side to side: 3" (76mm)

jxs 04/28/11
ir/jxs
updt jxs 11/11/11

– 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

Accessories for the O.S. GT33 Gasoline Engine

Primary Accessories     Optional Accessories
 
  Special Stock Number Product Description Parts Saver Eligible Tower's
Low Price
Click to Order Quantity Needed In Cart? Stock
Status
 LXRZ80 Great Planes Gasoline Fuel Tubing 3'
Add to Wish List
4.49   Late Oct
 LXS626 Klotz Gas RC Modelube 16 oz
Qty Discount Available
8.19   In Stock
Subtotal for this Group of Accessories: 12.68  
Click to Order all items listed in this Group of Accessories    Buy This group of Accessories

Primary Accessories     Optional Accessories

 
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