Get .50 size power into your .40 size aircraft
The 55AX is better than ever, with an improved carburetor and muffler. You get the same phenomenal power, with the convenience and safety of a rear angled needle valve on the carb and a squared off muffler for easier cowling installation. If you want .50 scale power that fits conveniently in .40 size planes, get the 55AX and get flying!
- Comes with the E3071 muffler for quiet efficiency.
- 40K carburetor has a diagonally placed needle valve so you don't need a remote needle valve.
- Mounts directly into the bolt pattern for the 46AX.
- Advanced Bimetallic Liner (ABL) uses two alloys to provide a durable layer between the brass liner and piston.
- Recommended prop sizes: 12x7, 12x8, 13x6, 13x7.
The large-chambered muffler reduces sound without reducing power.
The 40K carburetor includes a diagonally placed needle valve so there's no need for a remote needle valve.
- 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.
- 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 remot needle valve placement
- Two year limited warranty beginning at date of purchase
Product Specs
Bore
Crankshaft Threads
Crankshaft Type
Cylinders
Displacement
Engine (Only) Weight
Muffler Type
Muffler Weight
Oil Type & Content
Plug Type
Power Type
Product Height
Product Length
Product Width
Prop Range
RPM Range
Stroke
Compatibility
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Product Details
In The Box
- O.S. Max 55 AX ABL Aircraft Engine with E-3071 Muffler
- 40K carburetor
- #8 glow plug
- 3.5" (90mm) long needle valve
- Extension cable and two 3x35mm muffler
- Product Manual
Needed to Complete
- Aircraft blend fuel containing 5%-20% Nitromethane with at least 18% lubricant