|User's Guide (596.6 KB)||This is the User's Guide for the Magnum XLS .61A Engine|
Magnum XLS .61A-RNV
Two-Stroke R/C Aircraft Engine
This is a Magnum XLS .61A-RNV Two-Stroke R/C Aircraft Engine. The XLS .61A-RNV is a single cylinder, two-cycle engine incorporating ABC (Aluminum piston, Chrome plated Brass sleeve) technology for long life, high power output and easy break-in. A dual needle valve carburetor for precise fuel/airflow metering with an optional rear needle valve assembly is standard.
Your Magnum XLS series engine was designed by expert engineers and built by master craftsmen using only the highest quality materials and CNC machinery. These qualities provide the long life and dependability you have come to expect from an engine of this caliber. Magnum XLS Series are true ABC engines with true hard chrome plated (not nickel) brass cylinder sleeves for longest service life. Front rotor Schneurle porting optimizes power and efficiency of the two-stroke design, and aerospace quality steel ball bearings reduce friction to maximize RPM and power.
Magnum has been bringing you high performance engines at an affordable price for more than 20 years! During that time the line has grown and expanded to offer a full line of 4-stroke and 2-stroke engines. And, all are made from the finest materials on the latest machinery. Plus, you get the added security of a full one-year warranty that protects you from any manufacturing defects and or premature wear (crash damage not covered). For reliability, high quality, and performance the choice is MAGNUM!
• ABC Piston and Sleeve
• Dual Ball Bearing-Supported Crankshaft
• Dual Bushing-Supported Connecting Rod
• Squared-Off Cylinder Head Fits Easier into Cowls While Still Providing Good Cooling
• Includes Optional Rear Needle Valve Assembly
• Includes Muffler
• Displacement: .607ci (9.94cc)
• Bore: 24.0mm
• Stroke: 22.0mm
• Practical RPM: 2,000 to 16,000
• Weight with Muffler: 22.5oz
• Crankshaft Thread Size: 5/16-24
*Requires glow plug, fuel, propeller and support equipment. We recommend using 10% ~ 20% Nitro Methane Fuel with 18% ~ 20% Castor Oil/Synthetic Oil Blend Lubricant. We recommend using a hot heat-range glow plug designed for performance 2-stroke engines, such as Thunderbolt #3. Propeller size will vary based on many factors. We recommend an 11 x 7 propeller for break-in and a 12 x 6 for general sport plane use.
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|Mfr Part Number||210770|
- Excuse me, but ..... Review by Keith B
Excuse me however, but in the picture online for this motor, you have the Carb mounted BACKWARDS! How are you supposed to adjust the Throttle stop screw facing toward the prop?? Might be a bit tough on your fingers and the screwdriver colliding with the prop! Also the fuel nipple is aimed towards the prop instead of rearward and the convention is that the throttle control cable is on the LEFT SIDE (facing the engine) which is the opposite of the carb mounting in your picture. Sure you guys are Engine Experts? ;) Kidding. (Posted on 6/15/16)
- Cannot beat it for price Review by Jack
Just like all the previous reviews, it is very important to break the engine in right. Let it run for a short while and then let it cool off. Extend running time after each cycle. Keep it REALLY rich fuel wise and don't lean out until later. Both the 46 and 61 are great buys. (Posted on 8/1/13)
- Great Performer Review by Duffer
- Great engine for the price Review by Hawk007
- great engine, great price= outstanding value Review by wingnut
- Another awesome engine! Review by Vertigo II
The power is great, it is turning an 11-7 APC prop at 14,130 RPM burning Cool Power 15% fuel. Since this in an all synthetic fuel, I add 1 oz of castor oil due to the ABC construction of this engine. Idle and transition are excellent.
Disclosure- I changed out the bearings as a precaution due to the experience that I had with my previous engine, as well as the expected increased loading and RPM from the tuned pipe. I am not saying that this is required.
Overall, I again find this engine to be an excellent performer as well as an excellent value. Five stars. (Posted on 6/18/11)
- Great power, even greater customer service. Review by Vertigo II
These are true ABC engines- they are fit very tight at TDC, they require a longer break-in than some other brands, but the result is worth it. I recommend following the break-in instructions that come with the engine. A correctly broken-in ABC engine will yield superior long lasting performance.
I bought a second engine to put in my Hangar 9 Phoenix 7. I am looking forward to this airframe/powerplant combination.
Finally a word about Hobby people Customer service- First Class! They took care of my parts needs quickly. They were very responsive to my needs, and that is always appreciated in a world that seldom cares about customer service.
In summary: A rough start has turned into a rewarding experience with both the engine and the company backing it. I will recommend this and other Magnum products without hesitation. (Posted on 5/9/11)
- Great engine, great price! Review by RC'r
I would purchase again without question. (Posted on 1/3/11)
- Great power, poor quality Review by Vertigo II
The engine is very powerful, idles very reliably, and the throttle range is quite smooth and linear. The engine is mounted to a classic pattern airplane, and turns an 11-7 APC prop at 13,200 RPM using 15% Omega fuel. That is the good part.
The bad part is that the front bearing failed 30 minutes into the break-in run. Both bearings were replaced with high quality bearings. The engine, which has 2 hours run time is eating plugs, as the con rod bearings are worn and the rattling top end is knocking out the plug element. I am getting a flight per plug.
I am going to replace the con rod, and keep a close eye on this one.
I have been doing this for 36 years, so it is not beginner's error. For 99 bucks, I guess that you can't get your hopes up too high. (Posted on 12/28/10)
- SUPER PERFORMANCE Review by Romeo