--- product_id: 5956939 title: "O.S. 65AX Glow-Powered Aircraft Engine with Advanced Bimetallic Liner and E-4010A Muffler" brand: "os engines" price: "£234.91" currency: GBP in_stock: true reviews_count: 7 category: "Os Engines" url: https://www.desertcart.co.uk/products/5956939-o-s-65ax-glow-powered-aircraft-engine-with-advanced-bimetallic store_origin: GB region: United Kingdom --- # Drop-in mount compatibility 1.9 oz lighter than 61FX 1.73 hp @ 16,000 rpm O.S. 65AX Glow-Powered Aircraft Engine with Advanced Bimetallic Liner and E-4010A Muffler **Brand:** os engines **Price:** £234.91 **Availability:** ✅ In Stock ## Summary > 🚀 Elevate your flight game with power, precision, and pro-level reliability! ## Quick Answers - **What is this?** O.S. 65AX Glow-Powered Aircraft Engine with Advanced Bimetallic Liner and E-4010A Muffler by os engines - **How much does it cost?** £234.91 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/5956939-o-s-65ax-glow-powered-aircraft-engine-with-advanced-bimetallic) ## Best For - os engines enthusiasts ## Why This Product - Trusted os engines brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Power-to-Weight Mastery:** Delivers 5% more power while shedding 1.9 oz vs. the 61FX for unmatched agility. - • **Precision Tuning Safety:** 61D carburetor with angled needle ensures safer, more reliable tuning sessions. - • **Seamless Retrofit Ready:** Mounts in the exact footprint of the 61FX, making upgrades effortless and fast. - • **Versatile Muffler Options:** Includes E-4010A muffler and supports ultra-quiet E-4050 In-Cowl Muffler for customizable exhaust flow. - • **Confidence in Every Flight:** Backed by a 2-year limited warranty and optimized for Tower Hobbies Power 10% fuel for peak performance. ## Overview The O.S. 65AX Glow-Powered Aircraft Engine is a high-performance 0.65 cu. in. 2-stroke engine designed for trainers, sport, and scale aircraft. It offers a superior power-to-weight ratio by delivering 1.73 hp at 16,000 rpm while being 1.9 ounces lighter than its predecessor, the 61FX. Featuring drop-in compatibility, an advanced 61D carburetor with angled needle for safer tuning, and versatile muffler options including the E-4010A and ultra-quiet E-4050, it ensures reliable, easy starts and smooth idle. Supported by a 2-year limited warranty and optimized for use with Tower Hobbies Power 10% fuel, this engine is engineered for pilots who demand consistent, top-tier performance. ## Description Product Description The 65AX generates the plentiful power pilots prefer while being 1.9 ounces (53 grams) lighter than the popular 61FX. That means it offers a better power-to-weight ratio for trainer, scale and sport airplanes, and drop-in ease for retrofits as well. For the modeler who wants it all, the O.S. 65AX delivers.Features:Mounts in the same space as the 61FX, allowing for easy drop-ins.61D carburetor features an angled needle for added pilot safety.Includes the E-4010A muffler, #8 glow plug and needle extension cable set.Compatible with the ultra-quiet, ultra-compact E-4050 Muffler (OSMG2842).Requirements:Aircraft blend fuel containing 5-20% nitromethane with at least 18% lubricantSpecifications:Displacement: 0.65 cu. in. (10.6 cc)Bore: 0.95 in (24 mm)Stroke: 0.93 in (23.5 mm)Rpm Range: 2,500-16,000Output: 1.73 hp @ 16,000 rpmWeight w/o Muffler: 17.5 oz (497 g)Weight w/Muffler: 23 oz (653 g)Includes: #8 glow plug, 61D carburetor, E-4010A muffler and needle extension cable setRecommended Props: 12x6, 13x6-7 or 14x6 From the Manufacturer This is the O.S. 65AX ABL Aircraft Engine with the E4010A Muffler. Ideal for trainers, sport planes and scale aircraft. Review: This is a very well crafted motor. - Haven’t bought a glow engine in several years. I must say, I a quite impressed with the quality of this AX motor. After break in, the idle is very constant, power or best of any engine this size I’ve ever owned and starts super easy. Only issue I had is the o-ring on the muffler allows the tail piece to rotate and loosen the bolt holding it together. To fix that, I removed the o-ring, tightened the bolt and jamb nut, problem solved. Review: Another great running OS Engine - I bought this for a Hanger 9 Ultra Stick. It started right up using my starter on the first attempt. Recommend this engine for anyone looking for a .60 size engine. ## Features - The perfect power plant for trainers, sport planes and scale aircraft, offering outstanding reliability and easy tuning. - Mounts in the same space as the 61FX while being 1.9 ounces lighter and delivering 5 percent more power! - Compatible with a wide range of propellers and the E4050 In-Cowl Muffler (OSMG2842), which offers a choice of side or inverted exhaust outlet angles. - Pair with Tower Hobbies TOWER Power 10% Airplane Fuel (TOWP1600, sold in quarts) for optimal results. - Comes with a two-year limited manufacturer’s warranty. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004QJVHVC | | Brand Name | OS Engines | | Compatible with Vehicle Type | Car | | Customer Reviews | 4.3 4.3 out of 5 stars (17) | | Included Components | 16521 65AX ABL .65 Airplane Glow Engine w/Muffler | | Item Dimensions | 7.7 x 6.4 x 4.2 inches | | Item Type Name | Glow Engines, 2 Stroke, Airplane | | Item Weight | 1.5 Pounds | | Manufacturer | Hobbico Inc | | Manufacturer Part Number | 16521 | | Manufacturer Warranty Description | 2 year limited warranty | | Material Type | Metal | | Model Number | OSMG0558 | | UPC | 787799842607 | ## Product Details - **Brand:** OS Engines - **Item Weight:** 1.5 Pounds - **Item dimensions L x W x H:** 7.7 x 6.4 x 4.2 inches - **Material:** Metal - **Vehicle Service Type:** Car ## Images ![O.S. 65AX Glow-Powered Aircraft Engine with Advanced Bimetallic Liner and E-4010A Muffler - Image 1](https://m.media-amazon.com/images/I/71GHBTbo5LL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ This is a very well crafted motor. *by T***. on March 23, 2021* Haven’t bought a glow engine in several years. I must say, I a quite impressed with the quality of this AX motor. After break in, the idle is very constant, power or best of any engine this size I’ve ever owned and starts super easy. Only issue I had is the o-ring on the muffler allows the tail piece to rotate and loosen the bolt holding it together. To fix that, I removed the o-ring, tightened the bolt and jamb nut, problem solved. ### ⭐⭐⭐⭐⭐ Another great running OS Engine *by J***S on November 23, 2020* I bought this for a Hanger 9 Ultra Stick. It started right up using my starter on the first attempt. Recommend this engine for anyone looking for a .60 size engine. ### ⭐⭐⭐⭐ Four Stars *by E***L on May 16, 2016* OK ## Frequently Bought Together - OS Engines 16521 65AX ABL .65 Airplane Glow Engine w/Muffler, OSMG0558 - Spektrum 2200mAh 2S 6.6V Li-Fe Receiver Battery - Hangar 9 Ultra Fuel Pump Manual Gas & Glow HAN155 Air Field Equip & Electronics --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/5956939-o-s-65ax-glow-powered-aircraft-engine-with-advanced-bimetallic](https://www.desertcart.co.uk/products/5956939-o-s-65ax-glow-powered-aircraft-engine-with-advanced-bimetallic) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-22*