O.S. .55AX ABL Glow Airplane Engine w/E3071 Muffler & 40K Carburetor
About this part
Features:
- 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 O.S. Max .46 AXII
- 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.
- Angular head design offers increased surface area for better cooling
- Two year limited warranty through Hobby Services beginning at date of purchase
- Requires Aircraft blend fuel containing 5%-20% Nitromethane with at least 18% lubricant
- 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
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
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°
CA Residents Prop 65 Warning
WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...Reviews5.0 · 6 reviews
It's very shiny The construction quality is just I expected from O.S. I haven't installed it yet. But I imagine like every other O.S. it's going to be great
It's been over 30 years since I bought a brand new OS motor and I can tell you I was just as joyful to open the box as I was back then super clean excellent machining and manufacturing processes are used just like I remember started on the first pop broke in and I'm ready to use it in my vintage 32-year-old ultra sport 40. Also very important to note Amain hobbies has the best price on most everything especially nitro motors I saved nearly $60 compared to any other competitor. The website is clean well defined and clearly notes if the product is in stock and available for shipment customer service is also top notch. It's nice to be able to call during business hours and actually talk to a person instead of doing all this email jargon back and forth hoping for a response.
Great engine Starts right up and runs strong. Amain hobbies has the best price
Amazing engine. I am familiar with OS airplane engines for around fifty years. Yes, I am old. The folks at amain hobbies offers the best prices in the RC retail commerce. In addition, they provided quick responses to my inquiries, and fast delivery of the product . I am very satisfied with the OS engine as well as with the online store.
This is my second 55AX. Again hobbies had it for the best price so I needed 3 servos so I also purchased hitexc digital hi voltage. Everything was in stock and the shipment was very fast. Amain hobbies is now my go to for all future needs.
All six reviews are five-star and verified-owner ratings for the O.S. .55AX ABL glow airplane engine with E3071 muffler and 40K carburetor. Reviewers consistently praise the build quality and finish, reliable starting and smooth running, and strong power for the engine's size. Several reviews also comment on the seller, citing competitive pricing, stock availability, fast shipping, and responsive customer service. One reviewer mentions a second purchase of this engine and another notes a long familiarity with O.S. engines. Reviews are short and enthusiastic, with no reported problems or mixed opinions. Some reviews focus on the retailer rather than the engine itself, and one reviewer had not yet installed the engine at the time of writing.
- + Build quality and finish
- + Starts easily and runs strongly
- + Good power for its size
- + Competitive pricing and fast shipping from the seller
- − No recurring problems reported
- − Few detailed technical comments on performance