http://radiocontrolpilot.com/rc-aircraft-safety/ Keep your feet on the ground and your head in the clouds Fri, 13 Nov 2009 03:55:18 -0700 hourly 1 http://wordpress.org/?v=3.1.4 http://radiocontrolpilot.com/rc-aircraft-safety/comment-page-1/#comment-53 Phil. Spendley Fri, 08 May 2009 23:56:17 +0000 http://radiocontrolpilot.com/?p=170#comment-53 The problem with "modern" moel engines is their power to weight ratio - in the 1970's RC engines were reasonably user-friendly in terms of (limited) capacity and output. Nowadays even a modest sized engine (e.g. .40 2-stroke) puts out significant HP - and the larger 4-strokes (1.20 and above) have a greater output than "industrial" string trimmers - and you'd never be putting anything sensitive near the working end of one of those when it's running! Maybe this is yet another argument for the move to electric flight - no need to start a potentially lethal cutting tool!! The problem with “modern” moel engines is their power to weight ratio – in the 1970′s RC engines were reasonably user-friendly in terms of (limited) capacity and output. Nowadays even a modest sized engine (e.g. .40 2-stroke) puts out significant HP – and the larger 4-strokes (1.20 and above) have a greater output than “industrial” string trimmers – and you’d never be putting anything sensitive near the working end of one of those when it’s running! Maybe this is yet another argument for the move to electric flight – no need to start a potentially lethal cutting tool!!

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