Saito Engines FA-40A Stroke Engine

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As far as modelers are concerned, there’s no sound like the sweet sound of a SaitoTM engine. Saito’s latest wonder is the FA-40a, which shares nearly the same case size as the FA-30, but packs a whole lot more punch. All this power coupled with solid Saito craftsmanship and the standard 3-year warranty is sure to make this potent little 4-stroke one of the year’s most anticipated engines. As with most Saito engines, a special Golden Knight edition is available with a gloss black case and gold plated rocker covers.

Key Features:

  • 10 X 4 prop at 10,500 rpm
  • Smaller case design for lighter weight
  • Nearly the same case size as a .30, but packs more power

Specifications:

  • Type: 4-stroke
  • Displacement: .40 cu in (6.60 cc)
  • Bore: 0.86 in (22.0 mm)
  • Stroke: 0.68 in (17.40 mm)
  • Cylinders: Single - Chrome Plated
  • Total Weight: 10.64 oz
  • Engine (Only) Weight: 10.24 oz
  • Muffler Weight: 0.40 oz
  • Crankshaft Threads: 1/4 x 28
  • Benchmark Prop: 11x5 APC @ 10,600
  • Prop Range: 10x7 - 11x6
  • RPM Range: 2,000 - 12,000
  • Fuel: 10%-30% Synthetic
  • Mounting Dimensions: 88 x 45 x 93 mm
  • Muffler Type: 2 - Piece
  • HP: 0.65
  • Cylinder Type: AAC
  • Carb Type: Barrel, 2 Needle Valve
  • Crank Type: Ball Bearing

This product was added to our catalog on October 29, 2018

Stefan Schupp
Verified Owner
Wednesday, Jul 28 2021 (about 2 years ago)
Saito Engines FA-40A Stroke Engine
This is an outstanding little engine. I'm using it on a seaplane with a 60" wingspan and it has plenty of power swinging a 10x6 MAS prop. I followed the manufacturer break in procedure and have roughly 30 flights on it. Very happy, would recommend.

Here's a video of it in action:

https://youtu.be/1ekwtaXgUXA
Matan Tubul
Verified Owner
Monday, May 17 2021 (about 2 years ago)
Saito Engines FA-40A Stroke Engine
Thank you Amian for great service !!
Everything was very Satisfactory The engine arrived quickly, well packed and in good condition.The engine works great