RCMarket
Key Veteran
Location: Belgium , Europe
| Dual pug head.The explanation is simple.
you put 2 plugs but 1 cold and 1 hot.
for starting the engine, it doesnt matter which one to glow, but no need to glow 2 of them
Operation.: we know that those engines having a problem, some work good at high rev, and some work good at low rev.
the idea is to compensate both.
in low rev the hot plug will burn fuel better, and in the high revs, the cold.
this is the idea, to create whole range "glow plug"
another issue, for heli flyers, you have a double plug, what mean, double reliability for the engine. even if one of them is burned out, the second will last.
i tried myself this head with os 46, it was great.
the only cost, is another plug, but the price is not an issue.
Hope it helps
Alex |
I can't see any advantage. I would think with two "flame fronts" the Compression ratio would need to be lower to avoid detonation. Even with a single plug failure it's usually not noticed until you try and re-start.
I think I spelled your name right this time..
