GT60 Gasoline Engine
MORE POWER for 50 cc class aircraft!
With the GT60, O.S. gives fliers of 50 cc models everything they want in a gasoline engine — durability, efficiency, easy operation and super-strong performance.
O.S. takes advantage of liner-less cylinder construction for benefits that include lower weight, improved cooling, and exceptionally efficient exhaust scavenging. Intake and exhaust timing are perfected as well.
Instant throttle response makes the GT60 an outstanding choice for 3D flying. When you need more power ASAP, this engine delivers!
- Available with or without Pitts-style E-6020 muffler.
- Redesigned IG-02 electronic ignition system offers quick starts and accepts 4-6 cell NiCd/NiMH or 2-cell LiPo batteries.
- Rear-mounted Walbro carburetor is custom-designed for the GT60.
- Connecting rod features needle roller bearings at both ends.
- Angled spark plug allows easy installation in tight spaces.
- Recommended prop sizes: 22x8, 22x10, 23x8, 24x8, 24x10.
The GT60 is available with or without a Pitts-style E-6020 muffler. The muffler features anti-crush tubes for the mounting bolts and webbing reinforcements at high-stress points.
A choke rod guide has been integrated into the crankcase for effortless set-up.
Pilots prefer a rear-mounted carb — and O.S. designers listened. The carb is custom-designed by Walbro specifically for the GT60.
The GT60's liner-less cylinder head lowers weight, improves cooling, and contributes to increased scavenging efficiency.
Both versions of the GT60 include electronic ignition module and CM-6 spark plug. The GT60 with muffler also comes with gasket and bolts.
- Specifications
- Exploded Views
- Parts Listing
- Accessories
- Gallery
Stock Numbers
OSMG1560: GT60 without Muffler
OSMG1561: GT60 with E-6020 Muffler
Displacement: 3.65 cu.in. (59.91 cc)
Bore: 1.732 in (44 mm)
Stroke: 1.551 in (3.94 mm)
Practical rpm: 1,600-8,000
Output: 6 hp @ 8,000 rpm
Engine Weight: 49.38 oz (1,400 g)
Ignition Module Weight: 3.7 oz (105 g)
Muffler Weight: 6.28 oz (178 g)
View 3-view PDF
OSMG1560: GT60 without Muffler
OSMG1561: GT60 with E-6020 Muffler
Displacement: 3.65 cu.in. (59.91 cc)
Bore: 1.732 in (44 mm)
Stroke: 1.551 in (3.94 mm)
Practical rpm: 1,600-8,000
Output: 6 hp @ 8,000 rpm
Engine Weight: 49.38 oz (1,400 g)
Ignition Module Weight: 3.7 oz (105 g)
Muffler Weight: 6.28 oz (178 g)
View 3-view PDF
Primary Accessories
| Stock Number | Mfr Number | Product Description | Quantity Needed |
| GPMQ4135 | GPMQ4135 | Great Planes Gasoline Fuel Tubing 3' | 1 |
| KSFP0310 | KL-310 | Klotz Gasoline RC Modelube 16 oz | 1 |
| XOAQ2308 | PJA23X8 | Xoar Props 23x8 PJA Series Beechwood Propeller | 1 |
Field Equipment
| Stock Number | Mfr Number | Product Description | Quantity Needed |
| HCAP3200 | HCAP3200 | Hobbico TorqMaster 90 Deluxe 12V | 1 |
Optional Accessories
| Stock Number | Mfr Number | Product Description | Quantity Needed |
| BISG9251 | 9251 | Bisson Inverted Muffler DA50 | 1 |
| DUBQ0427 | 554 | Dubro Tygon Gasoline Tubing X Large 3' | 1 |
| DUBQ0675 | 400 | Dubro Gasoline Conversion Stopper | 1 |
| DUBQ0896 | 898 | Dubro I.D. Tygon Tubing 5/32" 25' | 1 |
| GPMG2150 | GPMG2150 | Great Planes Gasoline Engine Ignition Kill Switch | 1 |
| HCAM6425 | HCAM6425 | Hobbico LiFeSource LiFe 6.6V 1800mAh 10C Receiver U | 1 |
| HCAM6435 | HCAM6435 | Hobbico LiFeSource LiFe 6.6V 2100mAh 10C Receiver U | 1 |
| HCAM6445 | HCAM6445 | Hobbico LiFeSource LiFe 6.6V 3200mAh 10C Receiver U | 1 |
| JTCG7950 | JTCDA50WPL | J'TEC Radiowave Large Wrap Around Pitts Muf DA50R GT55 | 1 |
| OSMG8955 | 74003510 | O.S. Standoff 5x6.4mm 1/4" GT55 (4) | 1 |
| OSMG8956 | 74003520 | O.S. Standoff 5x12.7mm 1/2" GT55 (4) | 1 |
| OSMG8957 | 74003530 | O.S. Standoff 5x19.1mm 3/4" GT55 (4) | 1 |
| OSMG8958 | 74003540 | O.S. Standoff 5x25.4mm 1" GT55 (4) | 1 |
| OSMG8959 | 74003550 | O.S. Standoff 5x31.8mm 1-1/4" GT55 (4) | 1 |
| OSMG8960 | 74003560 | O.S. Standoff 5x38.1mm 1-1/2" GT55 (4) | 1 |
| OSMG8961 | 74003570 | O.S. Standoff 5x44.5mm 1-3/4" GT55 (4) | 1 |
| OSMG8962 | 74003580 | O.S. Standoff 5x50.8mm 2" GT55 (4) | 1 |
| TOPQ5260 | TOPQ5260 | Top Flite 22x10 Power Point Propeller | 1 |
| TOPQ5265 | TOPQ5265 | Top Flite 24x8 Power Point Propeller | 1 |
| TOPQ5270 | TOPQ5270 | Top Flite 24x10 Power Point Propeller | 1 |
| XOAQ2212 | PJA22X12 | Xoar Props 22x12 PJA Series Beechwood Propeller | 1 |
