Jim-Thompson
New Member
- Joined
- Nov 29, 2015
- Messages
- 2
- Reaction score
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I have been working on a the conversion of a 99 cc Stihl chainsaw engine to suit aero application. The plan is for it to power a large scale radio control plane that will be used for aerotowing of radio control model gliders.
I have had it running on the bench with a 26 inch propellor. I had to first cut it out of the saw body using a carbide tipped die grinder. The crankshaft was cut off and the back of the engine which was the original drive side, is now blanked off. I machined the prop hub for it, even though I had never machined anything to a dimension before. It took me three attempts, but the final result is very satisfactory.
Ignition system is a CDI using a hall sensor and a 3 mm magnet stapled into the aluminium prop hub.
More details supplied if anyone is interested. Here is a video of it running on the bench:
[ame]https://vimeo.com/167048008[/ame]
This one is of the improved throttle linkage:
[ame]https://vimeo.com/168889537[/ame]
Finally, this is the build thread of the model. The size in the title is misleading; it is now closer to 4 mtr span.
http://www.rcgroups.com/forums/showthread.php?t=2523079
I have had it running on the bench with a 26 inch propellor. I had to first cut it out of the saw body using a carbide tipped die grinder. The crankshaft was cut off and the back of the engine which was the original drive side, is now blanked off. I machined the prop hub for it, even though I had never machined anything to a dimension before. It took me three attempts, but the final result is very satisfactory.
Ignition system is a CDI using a hall sensor and a 3 mm magnet stapled into the aluminium prop hub.
More details supplied if anyone is interested. Here is a video of it running on the bench:
[ame]https://vimeo.com/167048008[/ame]
This one is of the improved throttle linkage:
[ame]https://vimeo.com/168889537[/ame]
Finally, this is the build thread of the model. The size in the title is misleading; it is now closer to 4 mtr span.
http://www.rcgroups.com/forums/showthread.php?t=2523079
