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FA-125A AAC w/Muffler: AG Specs
Type: 4-Stroke
Displacement: 1.25 cu in (20.52 cc)
Bore: 1.24 in (31.7 mm)
Stroke: 1.02 in (26.0 mm)
Cylinders: Single AAC
Total Weight: 24.69 oz (700 grams)
Engine (Only) Weight: 21.87 oz (620 grams)
Muffler Weight: 2.89 oz (80 grams)
Crankshaft Threads: M8 x 1.25 mm
Benchmark Prop: APC 16X6 @ 9,000 RPM
Prop Range: 15x7 - 17x6
RPM Range: 1,800 - 10,000 RPM
Fuel: 10% - 30% nitro Synthetic mix
Mounting Dimensions: 152 x 60 x 126 mm
Muffler Type: Cast
HP: 2.2
Cylinder Type: AAC
Carb Type: 2 Needle
Crank Type: Dual Ball Bearing
Overview
Only Saito could put 1.25 cubic inches of power into a 1.00 size case. Not only is the FA-125 lighter and more powerful than the FA-120 it replaces, its unique size allows modelers to apply its awesome power to a wide variety of airplane sizes. It will work with anything from .90 size sport aerobats all the way up to 1.20 size sport and IMAC planes. As with most Saito engines, the FA-125A is available in a stunning Golden Knight version with a gloss black finish and gold plated valve covers.
With 10 fewer ounces and .05 more cubic inches than the FA-120 it replaces, the FA-125A gives new meaning to the term ¡°escape velocity¡±. Just bolt one to the nose of Hangar 9¡¯s Showtime 90 and you¡¯ll see what we mean.
Needed to Complete
Propeller: 16x6
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You will note a
letter (A, B, C, etc.) stamped on the top of the right motor mounting lug.
This letter identifies the
production version of your engine. Should you ever need to order a part or
have a question pertaining to your engine, specify this letter
along with the engine type. This will allow ease in identifying
your engine.
Saito Single Cylinder
Prop Chart
NOTE: All recommendations are based on
engines using APC Prop, Wildcat 15% Nitro/18% ALL Synthetic Oil Fuel, and
OS Type F Glow Plug. |
Engine |
HP |
Sport /
Aerobatic |
Scale |
Pattern |
FA-30S (H)/30SGK
2,200?2,000 RPMs |
.60 |
10x6 |
9x5, 10x6 |
9x5, 10x6 |
FA-50/50GK
2000-12,000 RPMs |
.85 |
11x7, 11x8, 12x6 |
12x5, 12x6 |
11x7, 11x8, 12x6 |
FA-56/56GK
2000-12,000 RPMs |
.93 |
11x8, 12x6, 12x7 |
12x6, 12x7 |
11x8, 12x6, 12x8 |
FA-65/65GK
2000-11,500 RPMs |
.95 |
12x6, 12x8, 13x6, 13x8 |
12x8, 13x8, 14x5, 14x6 |
11x9, 12x8, 13x6 |
FA-72/72GK
2000-11,500 RPMs |
1.2 |
12x8, 13x7, 13x8,
14x6 |
12x8, 13x7, 13x8,
14x6 |
12x8, 13x7, 13x8, 14x6 |
FA-80/80GK
2000-11,500 RPMs |
1.3 |
12x8, 13x6, 13x7, 13x8,
14x6 |
13x6, 13x7, 13x8, 14x6, 15x4 |
11x9, 11x10, 12x8, 12x9 |
FA-91S/91SGK
2000-11,000 RPMs |
1.7 |
12x10, 13x8, 13x10, 14x6,
14x7, 14x8 |
12x10, 13x8, 14x6, 14x7,
14x8, 15x6 |
11x10, 11x11, 12x9, 12x10N, 13x9 |
FA-100/FA-100GK
2000-11,000 RPMs |
1.8 |
14x8, 14x10, 15x6 |
12x11, 13x9, 14x8,
14x10, 15x6 |
12x11, 13x9, 14x8, 14x10,
15x6 |
FA-120S/120SGK
2000-10,500 RPMs |
2.2 |
14x10, 15x8, 15x10, 16x6, 16x8 |
15x8, 16x6, 16x8, 18x6 |
13.5x13.5, 14x10N, 14x12 |
FA-150/150GK
2000-10,000 RPMs |
2.5 |
15x8, 15x10, 16x8, 17x8,
17x8N, 18x6, 18x8 |
16x8, 17x8, 18x6, 18x8 |
14x10N, 14x12, 15x10, 15x11 |
FA-180/180GK
2000-10,000 RPMs |
2.8 |
15x10, 16x8, 17x8, 17x8N, 18x6,
18x8 |
16x8, 16x10, 17x8, 17x8N, 18x6,
18x8 |
14x10N, 14x14, 15x10, 15x12,
16x10, 17x8 |
NOTE:
Observe operating RPM ranges as excessive RPM can result in damage to the
engine.
It is recommended
that you keep ALL of the above engines below 10,000 RPMs. |
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