Thunder Tiger PRO .46 Ball Bearing ABN w/Muffler
FEATURES: Dual ball bearing-supported crankshaft
Schnuerle porting
ABN (Aluminum Brass Nickel) piston/cylinder assembly
Forged aluminum connecting rod with dual bushings
Unique "squared" cylinder head design has more surface area than
most conventional cylinder heads, for cooler runs
Twin-needle carburetor
INCLUDES: Engine, Expansion-Style Muffler (with pressure fitting & rotatable
outlet), glow plug, wrenches, decals, and instructions.
REQUIRES: Prop, engine mount, fuel filter, and fuel (Thunder Tiger
recommends fuel with castor oil).
SPECS: Displacement: .455 cu in (7.46cc)
Bore: .853" (21.8mm)
Stroke: .7874" (20mm)
Power Output: 1.43 HP @ 16,000 RPM
Maximum RPM range: 2,000 - 17,000 RPM
Practical RPM range: 2,500 - 14,000 RPM
Weight (w/muffler): 17.01oz (482g)
Crankshaft thread size: 1/4-28
Crankcase width (for engine mount): 1.36"
Exhaust mounting width (center to center): 37mm
Overall height: 3.4" (87mm)
Overall width (w/mount flanges): 1.97" (50mm)
Overall length (backplate to front of drive washer): 3.39" (86mm)
Recommended prop size: Break-In: 11x5
Sport and Scale: 10.5x6, 11x6
Aerobatic: 10x6.5, 10.5x6, 11x5
O.S. 155FS-a Pumped Engine OUT OF STOCK 499.99
FEATURES: Ideal for 120 size scale and sport models and aerobatic models
requiring stable power and linear throttle response
PD-08 pump and 70R carburetor integrated with regulator ensures
stable fuel delivery regardless of model attitude and fuel level
F-6020 three piece design muffler with center heatsink
New internal lubricating system eliminates breather tubing from the
crankcase
Two year limited warranty through Hobby Services beginning at date of
purchase
INCLUDES: FSa-155-P Four Cycle Engine with PD-08 Pump System, 70R Carburetor
F-6020 Muffler, Header Pipe, type F Glow Plug, Needle Valve
Extension Cable, Instruction Manual
REQUIRES: Fuel: Glow fuel with 5-20% nitro content and no less than 18%
lubricant content
Propeller: 16x8-12 or 17x8-12
Glow Starter
Field equipment
SPECS: Displacement: 1.548 cu in (25.36cc)
Bore: 1.323" (33.6mm)
Stroke: 1.126" (28.6mm)
Practical RPM: 2,000 - 10,000 RPM
Power Output: 2.6hp @ 10,000 RPM
Engine Weight: 28.40 oz (805g)
Muffler Weight: 3.35oz (95g)
Carburetor Settings-
Needle Valve: 2-1/2 - 3 turns from fully closed
Mixture Control Valve: Factory set, make only small adjustments if
needed, after adjusting needle valve as described in manual, turn
30° to lean idle mixture or 90° counterclockwise to richen mixture
then back again 45° clockwise
O.S. FS-95V Ringed 4-Stroke Engine IN STOCK $ 299.99
FEATURES: Broad power band for a wide variety of airplanes including models
designed for .60 2-stroke and .90 4-stroke engines
Redesigned cylinder head to match angled valve layout for steady
power at all times and a perfect balance between high combustion
and efficient cooling
Redesigned "Jet Stream" muffler with unique shape for more authentic
four stroke sound
Same mounting dimensions, drive hub position and linkage position as
the O.S. FS-91 Surpass II, 61FX, 65LA, 75AX, 95AX and FS-110
Two year limited warranty through Hobby Services beginning at date of
purchase
INCLUDES: O.S. Engines FS-95V Four Stroke Engine with Type F Glow Plug, Muffler
Header Pipe with two Locknuts and Instruction Manual
REQUIRES: Fuel: 5-20% nitromethane aircraft blend with 18% lubricant content
Propeller: Sport & Aerobatic 13x7-9, 14x6-8
Scale 15x6-8
SPECS: Carburetor Settings-
Needle Valve: 2-1/2 - 3 turns from fully closed
Mixture Control Valve: Rotate until slotted head is flush with carb
body. After setting needle valve, rotate mixture control valve
approximately 45° clockwise to lean the mixture or 45° counter-
clockwise to richen mixture
FEATURES: Advanced Bi-Metallic Liner. This process uses a double layer of
plating material rather than one thick layer. This helps the metal
to bond to the cylinder and is more durable. Also, the plating
process is more consistent, resulting in a more precise fit between
piston and sleeve for better compression, longer life.
Side exhaust
E-3071 Power Box muffler with squared-off shape enables it to fit
into a variety of cowls
40K carburetor with rear angled needle valve for added safety
Ball bearing-supported crankshaft
Two-year limited warranty through Hobby Services beginning at date of
purchase
INCLUDES: One O.S. Max .46AXII ABL BB model airplane engine w/muffler, A3 glow
plug, two 3mm x 35mm cap head muffler screws, extension cable for
remote needle, 3mm x 35mm cap head muffler screws, warranty sheet,
decal sheet, and illustrated instruction manual
REQUIRES: Fuel containing 5%-20% nitromethane with at least 16% lubricant
Most of the fuels we carry meet or exceed the lubricant content
required for optimum performance and maximum engine life. In the
past, the conventional lubricant content used in fuel was 18%. But
with new advanced technologies, fuels like Red Alert and O'Donnell
for example, have a better quality of lubricants even though the
percentages of lubricant content are lower. These high-tech
lubricants provide exceptional cooling and protection
SPECS: Displacement: 0.455 cu in (7.45cc)
Bore: 0.866" (22mm)
Stroke: 0.772" (19.6mm)
Practical RPM: 2000-17000
Power Output: 1.65PS, 1.67HP/16000 RPM
Weight: 13.3oz (378g) without muffler
Recommended Propellers: 10.5x6, 11x6-8, 12x6-7, use 10x6 for break-in
Crankshaft Size: 1/4-28
Distance from remote needle to end of crankshaft: 4.7" (119.4mm)
Distance from center of engine to drive hub: 2.4" (61mm)
Distance from center of engine to end of crankshaft: 3.4" (87.6mm)
Distance/crankshaft center to muffler exhaust outlet: 3.9" (100.5mm)
Height from crankcase bottom to top of cylinder head: 3.3" (85.2mm)
Height/crankshaft center to top of cylinder head: 2.6" (67.4mm)
Width including mounting tabs: 2" (50.8mm)
Width not including mounting tabs: 1.4" (35.6mm)
Width/mounting hole centers same side: .69" (17.5mm)
Width/mounting hole centers opposite side: 1.7" (44mm)
Diameter of muffler body: 1.5" (38.1mm)
Angle of muffler in relation to engine: 4°
Carburetor Settings;
Needle Valve: 1½ to 2 turns out from closed position
Low Speed Needle (aka: Mixture Control Valve): Close throttle rotor
gradually from the fully opened position until it is just fully
closed (do not turn further).
Screw in the Mixture Control Screw until it stops. Now open the
Mixture Control Screw approx. one turn.
O.S. 46AX II ABL 40K E-3071 ON ORDER,
This is the OS Engines GT22 Gasoline Powered Engine with Muffler
and Rear Mounted Carburetor.
**Additional Technical Info Will Be Added When It Becomes Available.**
FEATURES: Beam mounting design allows engine to fit inside cowls that are
sized for 2-stroke .60-.91 and 4-stroke 1.20 glow engines
Custom designed rear mounted Walbro carburetor with choke rod guide
integrated into crankcase that minimizes set-up time
IG-02 electronic ignition handles 4-6 cell NiCd, NiMH or 2-cell LiPo
and LiFe batteries
Pitts style muffler has reinforced mounting bolt holes and webbing at
high stress points
Two year limited warranty through Hobby Services beginning at date of
purchase
INCLUDES: GT22 Engine with Muffler, Electronic Ignition Module, CM-6 Spark Plug
Muffler Gasket, Muffler Bolts and Instruction Manual
REQUIRES: 2-cycle oil
Ignition Battery: 4-6 cell NiCd, NiMH, or 2-cell LiPo
LiPo battery requires voltage regulator
Propeller: 16x8, 16x10, 17x6, 17x8
Gasoline safe fuel tubing and fuel filter
SPECS: Displacement: 1.35 cu in (22 cc)
Bore: 1.26" (32mm)
Stroke: 1.08" (27.5mm)
Practical RPM Range: 1,800 - 9,000
Output: 2.66 hp @ 9,000 RPM
Weight:
Engine: 26.86oz (761.6g)
Muffler: 4.68oz (132.6g)
Ignition Module: 3.7oz (105g)
OS Engines GT22 Gasoline Powered Engine with Muffler $ 409.99 ON ORDER
.46LA Non-Ring 40D Carb E3030 Muffler, instock 84.99
TECH NOTES
This is the .46LA engine from O.S. Max designed for sport airplane use.
This is a non-ringed engine with a Two-Year Warranty.
This engine has a natural finish w/"O.S." & "46LA" on the side.
FEATURES: 1-piece crankcase
Crankshaft is set in one long bronze Oilite bushing (no bearings)
Schnuerle porting (AKA Schnuerle scavenging)
Side exhaust
Nylon backplate with remote needle valve
40D carburetor
Aluminum piston with Nickel-plated brass cylinder liner.
INCLUDES: One expansion-style muffler #E-3030
One instruction manual and sticker sheet
One assembled engine with glow plug
Two 3x30mm phillips head screws to bolt muffler to engine
SPECS: Construction: Aluminum 1-piece crankcase, piston, cylinder head
Bore: 23.0mm (0.906")
Stroke: 18.4mm (.724")
Horsepower: 1.2 PS, 1.18 HP at 15,000 RPM
Distance from remote needle to end of crankshaft: 4.5" (114mm)
Distance from center of engine to drive hub: 2.0" (51.2mm)
Distance from center of engine to end of crankshaft: 3.0" (76.3mm)
Height from crankcase bottom to top of cylinder head: 3.3" (84.7mm)
Height/crankshaft center to top of cylinder head: 2.7" (69mm)
Width including mounting ears: 1.9" (48mm)
Width not including mounting ears: 1.2" (32mm)
Width between mounting holes same side: 0.69" (17.5mm)
Width between mounting holes opposite side: 1.6" (40.5mm)
Width between muffler mounting holes: 1.4" (36mm)
Width of exhaust opening: 1.1" (29mm)
Height of exhaust opening: 0.3" (7mm)
Diameter of muffler body: 1.3" (33.5mm)
Angle of muffler in relation to engine: 4°
Weight: 272g (9.6oz without muffler)
Crankshaft Thread Size: 1/4-28
Recommended Props: Break In: 11x6
Trainer and Sport Models: 11x6, 11x7
Scale Models: 12x5, 12x6
Practical RPM Range: 2,000 - 16,000 RPM (This engine will not turn
this many RPM on the ground) RPM curve is when the engine unloads.
REQUIRES: Fuel with 5% - 15% Nitromethane and 18% (minimum) oil content
(Most of the 5%-15% fuels we carry meet these requirements)
COMMENTS: The factory setting of the needle valves are as follows:
High speed needle: Turn all the way in and back out 2 turns.
Air Bleed screw: Turn all the way in and back out 2 turns.
The coverplate for the FX Series will NOT work on this engine.
.55AX ABL 40K E3071, on order169.99
This is the O.S. Max .55 AX ABL Aircraft Engine
with the E3071 Muffler.
FEATURES: Same mounting dimensions as the O.S. Max .46 AXII
Advanced Bi-Metallic Liner process uses a double layer of plating
material rather than one thick layer. This helps the metal bond to
the cylinder and makes the plating more durable. Also, the plating
process is more consistent, resulting in a more precise fit between
piston and sleeve for better compression and longer life.
Angular head design offers increased surface area for better cooling
40K Carburetor with diagonally placed needle valve eliminating remote
needle valve placement
Two year limited warranty through Hobby Services beginning at date of
purchase
INCLUDES: O.S. Max 55 AX ABL Aircraft Engine with E-3071 Muffler, 40K
carburetor, #8 glow plug, illustrated instruction manual, 3.5"
(90mm) long needle valve, extension cable and two 3x35mm muffler
screws
REQUIRES: Aircraft blend fuel containing 5%-20% Nitromethane with at least 18%
lubricant
SPECS: Displacement: .545 cu in (8.93cc)
Bore: .91" (23mm)
Stroke: .85" (21.5mm)
Practical RPM: 2,000-17,000
Power Output: 1.75 PS, 1.68 HP/16,000 RPM
Weight: 14.29oz (404g) w/o muffler
w/ muffler
Recommended Props: 11x6, 11x7, 12x6, 12x7, 13x6
Crankshaft thread size: 1/4-28
Distance from center of engine to drive hub: 2.4" (60.4mm)
Distance from center of engine to end of crankshaft: 4.4" (112.6mm)
Distance/crankshaft center to muffler exhaust outlet: 1.4" (36.7mm)
Height from crankcase bottom to top of cylinder head: 3.6" (91.1mm)
Height/crankshaft center to top of cylinder head: 2.8" (72.6mm)
Width including mounting tabs: 2" (51mm)
Width not including mounting tabs: 1.4" (36mm)
Width between mounting holes same side: .69" (17.5mm)
Width between mounting holes opposite side: 1.7" (44mm)
Diameter of muffler body: 1.5" (38mm)
Angle of muffler in relation to engine: 4°
jxs 01/03/12
FS56-A Ring 40NA Carb F4040 Muffler, 309.99, INSTOCK
TECH NOTES
This is the FS155-a P Four Cycle Engine with Pump System from O.S. Engines.
FEATURES: Ideal for 120 size scale and sport models and aerobatic models
requiring stable power and linear throttle response
PD-08 pump and 70R carburetor integrated with regulator ensures
stable fuel delivery regardless of model attitude and fuel level
F-6020 three piece design muffler with center heatsink
New internal lubricating system eliminates breather tubing from the
crankcase
Two year limited warranty through Hobby Services beginning at date of
purchase
INCLUDES: FS155-a P Four Cycle Engine with PD-08 Pump System, 70R Carburetor
F-6020 Muffler, Header Pipe, type F Glow Plug, Needle Valve
Extension Cable, Instruction Manual
REQUIRES: Fuel: Glow fuel with 5-20% nitro content and no less than 18%
lubricant content
Propeller: 16x8-12 or 17x8-12
Glow Starter
Field equipment
SPECS: Displacement: 1.548 cu in (25.36cc)
Bore: 1.323" (33.6mm)
Stroke: 1.126" (28.6mm)
Practical RPM: 2,000 - 10,000 RPM
Power Output: 2.6 PS, 2.56 HP @ 10,000 RPM
Engine Weight: 28.40 oz (805g)
Muffler Weight: 3.35oz (95g)
Carburetor Settings-
Needle Valve: 2-1/2 - 3 turns from fully closed
Mixture Control Valve: Factory set, make only small adjustments if
needed, after adjusting needle valve as described in manual, turn
30° to lean idle mixture or 90° counterclockwise to richen mixture
then back again 45° clockwise
Width at Mounting Tabs: 2.6" 67mm)
Crankcase Width below Mounting Tabs: 1.8" (47mm)
Length from Drive Washer to rear of Carburetor: 5" (127.5mm)
Height from Mounting Tab to Pushrod Cover: 4.5" (114mm)
Height from bottom of Crankcase to Pushrod Cover: 5.4" (138.6mm)
Distance between Mounting Hole Centers Same Side: 0.98" (25mm)
Distance between Mounting Hole Centers Opposite Side: 2.3" (58mm)
Distance/front Mounting Hole Center to Drive Washer: 2.5" (64.5mm)
Distance/ Center of Engine to Drive Washer: 3.03" (77mm)
Crankshaft Size: 5/16-24
FS95V Ring 60P F5050 4-Stroke, ON ORDER, 299.99
Double click here to add text. This is the O.S. Engines FS-95V Four Stroke Aircraft Engine.
FEATURES: Broad power band for a wide variety of airplanes including models
designed for .60 2-stroke and .90 4-stroke engines
Redesigned cylinder head to match angled valve layout for steady
power at all times and a perfect balance between high combustion
and efficient cooling
Redesigned "Jet Stream" muffler with unique shape for more authentic
four stroke sound
Same mounting dimensions, drive hub position and linkage position as
the O.S. FS-91 Surpass II, 61FX, 65LA, 75AX, 95AX and FS-110
Two year limited warranty through Hobby Services beginning at date of
purchase
INCLUDES: O.S. Engines FS-95V Four Stroke Engine with Type F Glow Plug, Muffler
Header Pipe with two Locknuts and Instruction Manual
REQUIRES: Fuel: 5-20% nitromethane aircraft blend with 18% lubricant content
Propeller: Sport & Aerobatic 13x7-9, 14x6-8
Scale 15x6-8
SPECS: Carburetor Settings-
Needle Valve: 2-1/2 - 3 turns from fully closed
Mixture Control Valve: Rotate until slotted head is flush with carb
body. After setting needle valve, rotate mixture control valve
approximately 45° clockwise to lean the mixture or 45° counter-
clockwise to richen mixture
Displacement: 0.951cu in (15.59cc)
Bore: 1.142" (29.0mm)
Stroke: 0.929" (23.8mm)
Practical RPM: 2,100 - 11,000RPM
Power Output: 1.7ps/10,000RPM
Weight: 20.88oz (592g)
Muffler Weight: 2.05oz (58g)
Crankshaft Size: 5/16-24
Height from bottom of Mounting Tab to Pushrod Cover: 3.8" (97.5mm)
Height from bottom of Crankcase to Pushrod Cover: 4.7" (119mm)
Distance from Carburetor to Drive Hub: 4.5" (115.7mm)
Distance/Mounting Hole Centers Same Side: 0.98" (25mm)
Distance/Mounting Hole Centers Opposite Side: 2" (50mm)
Mounting Hole Diameter: 0.16" (4.2mm)
Distance from Drive Hub to end of Crankshaft: 1.5" (37.4mm)
Distance from Drive Hub to center of Engine: 2.6" (66.5mm)
Width at Mounting Tabs: 2.4" (61mm)
Width Below Mounting Tabs: 1.7" (42.6mm)
Height/Mounting Tab Bottom to center of Needle Valve: 0.70" (17.8mm)
.46AX ABL 40G Carb E3070 Muffler, 15481 149.99
Ideally suited to a variety of R/C aircraft including trainer, sports
aerobatic, and scale types.
FEATURES: Redesigned remote needle holder is separate bracket, not part of
backplate
Advanced Bi-Metallic Liner. This process uses a double layer of
plating material rather than one thick layer. This helps the metal
to bond to the cylinder and is more durable. Also, the plating
process is more consistent, resulting in a more precise fit between
piston and sleeve for better compression, longer life.
Side exhaust
Newly designed Power Box muffler with squared-off shape
40G Carburetor
Ball bearing-supported Crankshaft
TWO-YEAR limited warranty
INCLUDES: One O.S. Max .46AX ABL BB model airplane engine with muffler, A3 glow
plug, 2¼" (57mm) section of tubing for remote needle, two
3mm x 35mm cap head muffler screws, warranty sheet, decal sheet,
and illustrated instruction manual
REQUIRES: Fuel containing 5%-20% nitromethane with at least 16% lubricant
Most of the fuels we carry meet or exceed the lubricant content
required for optimum performance and maximum engine life. In the
past, the conventional lubricant content used in fuel was 18%. But
with new advanced technologies, fuels like Red Alert and O'Donnell
for example, have a better quality of lubricants even though the
percentages of lubricant content are lower. These high-tech
lubricants provide exceptional cooling and protection.
SPECS: Displacement: 0.455 cu in (7.45cc)
Bore: 0.866" (22mm)
Stroke: 0.772" (19.6mm)
Practical RPM: 2000-17000
Power Output: 1.65PS, 1.63HP/16000 RPM
Weight: 13.2oz (375g) without muffler
Weight: 17.2oz (489g) with muffler
Recommended Propellers: 10.5x6, 11x6-8, 12x6-7, use 10x6 for break-in
Crankshaft Size: 1/4-28
Distance from remote needle to end of crankshaft: 4.7" (119.4mm)
Distance from center of engine to drive hub: 2.4" (61mm)
Distance from center of engine to end of crankshaft: 3.4" (87.6mm)
Distance/crankshaft center to muffler exhaust outlet: 3.9" (100.5mm)
Height from crankcase bottom to top of cylinder head: 3.3" (85.2mm)
Height/crankshaft center to top of cylinder head: 2.6" (67.4mm)
Width including mounting ears: 2" (50.8mm)
Width not including mounting ears: 1.4" (35.6mm)
Width between mounting holes same side: .69" (17.5mm)
Width between mounting holes opposite side: 1.7" (44mm)
Diameter of muffler body: 1.5" (38.1mm)
Angle of muffler in relation to engine: 4°
NEEDLE SETTINGS: High Speed Needle: 1½ to 2 turns Out from closed position,
per page 18 of manual
Low Speed Needle (aka: Mixture Control Valve): Close the
throttle rotor gradually from the fully opened position
until it is just fully closed. (Do not turn further.) Then
screw in the Mixture Control Screw until it stops. Now
unscrew the Mixture Control Screw approx. 3/4 turn. This is
the basic position, per page 23 of manual
120AX Ring 70D Carb E5020 Muffler, ON ORDER
This is the O.S. Max Two-Stroke 1.20AX Ringed Engine with Muffler.
FEATURES: Model Application: Ideal for 3D, Precision and Sport flying
Mounting Application: Mounts in same space as the .91FX (actual
mounting dimensions vary slightly, see SPECS)
Internal Construction: Steel piston ring and liner, aluminum piston
Muffler: E-5020 "Power Box" with extension and 90° adapters
Carburetor: 70D with rearward angled needle valve for safety
Glowplug: O.S. #8 supplied with engine, A5 (OSMG2693) will also work
Warranty: Two-year limited
INCLUDES: O.S. Max Two-Stroke 1.20AX Ringed Engine with E-5020 Power Box
Muffler, #8 glow plug, muffler adapter, prop washer and lock nut,
needle valve extension cable,instruction manual and decal sheet,
two muffler screws, two muffler extension bolts, two long muffler
bolts.
REQUIRES: Fuel: Two-Stroke with 18% lubricant and 5-20% nitromethane
Propeller: 15x10-12 or 16x8-10
Field Equipment: Glow starter, fuel filter, fuel pump, fuel tubing
SPECS: Displacement: 1.218 cu in (19.96cc)
Bore: 1.197" (30.4mm)
Stroke: 1.083" (27.5mm)
Practical RPM: 1,800 - 9,500 RPM
Power Output: 3.1 PS, 3.06HP/9000 RPM
Weight of engine: 29.0oz (823g) with muffler
Weight of muffler: 7.074oz (219.2g) with 90° adapter installed
Weight of muffler: 7.907oz (245g) with extension installed
Crankshaft thread size: 5/16-24
Distance Between Mounting Holes Same Side: 0.98" (25mm)
Distance Between Mounting Holes Opposite Side: 2.3" (58mm)
Distance Center of Crankcase to End of Crankshaft: 4.3" (109.5mm)
Distance Center of Crankcase to Drive Hub: 2.7" (69.8mm)
Width Between Mounting Tabs: 2.6" (67mm)
Width of Crankcase Below Mounting Tabs: 1.8" (46.5)
Length from Backplate to End of Crankshaft: 5.5" (139.9mm)
Length from Backplate to Drive Hub: 3.9" (100.2mm)
Height/Bottom of Crankcase to Top of Cylinder Head: 4.3" (109.2mm)
Height/Bottom of Mounting Tabs/Top of Cylinder Head: 3.4" (85.7mm)
Distance center to center of muffler mounting holes: 48mm (1.89")
Needle Settings: High Speed: 2 - 2.5 turns out from fully closed
Low Speed: 3/4 turn out from fully closed with the
throttle fully closed
COMMENTS: For version without muffler, order OSMG0651. The version without the
muffler does not include the muffler extension or the 90° adapter.
At this time one would not be able to use the muffler extension and
90° adapter at the same time. The long muffler bolts are too long.
jxs 10/25/05
Updated JBM 12-20-05
updt WM 11/29/05
ir/jxs
updt lmm 3/30/09
GT15 Air w/E-4040, ONORDER, 349.99
This is the O.S. GT15 Gasoline Engine with the E-4040 Muffler.
FEATURES: IG-06 electronic ignition handles 4-6 cell NiCd, NiMH or 2-cell LiPo
and LiFe batteries
Beam mounting design allows engine to fit inside cowls that are
sized for 2-stroke .60-.91 and 4-stroke .90 glow engines
Two year limited warranty through Hobby Services beginning at date
of purchase
INCLUDES: GT15 Gasoline Engine with E4040 Muffler, IG-06 Ignition Module
CM6 Spark Plug, 61H Carburetor, and Instruction Manual
REQUIRES: 2-cycle oil, see SPECS
Gasoline: Regular, no need to use high octane gasoline
Ignition Battery: 4.8-8.4V NiCd or NiMH, 6.6V LiFe or 2S 7.4V LiPo
pack, LiPo battery requires voltage regulator
Propeller: 13x8-11, 14x8-10, 15x8
Electric Starter
Gasoline safe fuel tubing and fuel filter
SPECS: Displacement: 0.912 cu in (14.95cc)
Bore: 1.091" (27.7mm)
Stroke: 0.976" (24.8mm)
Practical RPM: 2,000-15,000 RPM
Weight: 22.26oz (631g) engine
6.28oz (178g) muffler
3.35oz (95g) ignition module
Gasoline/Oil Mixture: 30:1 - 50:1
25:1 fuel/oil mixture if brand of oil states 50:1 mix
Carburetor Settings;
Needle Valve: With engine running, close needle valve as RPM
increases, close further 60-90° from point where RPM starts to
decrease, open slowly as RPM increases, then open 90° further
from maximum RPM point
Mixture Control Valve; Open one turn, open and close throttle a few
times to make sure there is no resistance, close mixture control
valve 30°, repeat open and closing of throttle then open mixture
control valve approximately 90°
Width at Mounting Tabs: 2.4" (61mm)
Width of Crankcase below Mounting Tabs: 1.7" (44mm)
Length between Mounting Hole Centers: 0.98" (25mm)
Crankshaft Size: UNF 5/16-24
Muffler Mounting Angle from center of Engine: 4°
Needle Valve Mounting Angle from center of Engine: 30°
Length from Pump to Drive Hub: 4.2" (106.2mm)
Length from Pump to end of Crankshaft: 5.6" (142mm)
Length from Pump to center of Crankcase: 1.5" (39.4mm)
Length from Drive Hub to end of Crankshaft: 1.4" (35.8mm)
Length/center of engine/opposite side of Muffler: 4.1" (103.3mm)
Length/center of engine to side of Cylinder Head: 0.96" (24.3mm)
Length between Muffler Mounting Hole Centers: 1.6" (42mm)
Length from Crankshaft Center to Muffler
GT33 w/Muffler 33cc/4.384ci Re Carb, ONORDER, 419.99
TECH NOTES
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
REQUIRES: 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
SPECS: 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 (.020" gap)
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)
