How to change model airplane engine bearings (part 2 of 2)

Part two of a video that explains how to replace worn bearings in a model airplane engine. It is one of the informational series of videos coming from RCModelReviews.com If you'd like an advertisement included in this video, please contact me. If you found this video to be useful, please rate it.

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How to change model airplane engine bearings (part 1 of 2)
The bearings in most model engines wear out eventually but fortunately changing them is a pretty simple task, requiring no special tools. This video shows you how to change your own bearings and is one of the informational series of videos coming from RCModelReviews.com If you'd like an advertisement included in this video, please contact me.





Fixing the HobbyKing pulsejet (part 2)
Modifying the HK pulsejet for RC planes so that it would actually run was pretty simple but the absolutely awful quality welding that I mentioned in my review soon came into play and the engine split right along the weld-line where someone had been way-too busy with a grinder. If you find your HK pulsejet won't do much more than pop and bang then you can try drilling out the fuel metering jet to 1mm from its standard 0.9mm diameter. In colder weather, the HK pulsejet (like all pulsejets) benefits from a little pre-heating of the combustion chamber to improve fuel vaporization during the starting process. The next step will be to repair this engine by welding up the crack but this may require a new strip of stainless to be formed and welded into place because the metal around the crack has been ground so think that any attempt to weld it would probably fail. Stay tuned... some welding and fettling coming up soon as I repair the engine (again) and fit it to the Mini Talon.





Uh-oh, deadstick in a 20knot cross-wind
20knot winds, a cheap ARF, a powerful engine and a tuned pipe spell: FUN! We clocked this plane on the radar at over 175kph on a calm day (that's 110mph), not bad for a trainer! Check out my other RC model vids and please take the time to rate this video.





Impressive F-15 jet crash (large RC turbine-powered model plane)
When this very large turbine powered F15 RC plane crashed just a few meters away from me, I did not flinch :-) The result is the footage you see here. Yes, the MFNZ jet fliers are back, pounding more Tokoroa turf! :-) Obviously the right-main undercarriage leg on this model did not fully deploy and this resulted in a rather nasty "arrival" on landing. That's what pre-flight checks are for I guess. Roddy's channel has a more humorous perspective on the crash https://www.youtube.com/watch?v=VUxnYSsnTmw




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