Gecko
Well-known member
Interesting time in history. A couple of points.
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The blow torch used to get it warmed up, uses exactly the same principle - liquid into the heating tubes, heated to gas temp, through the jet where the fuel mixes with air and burns. Most of the heat comes out the front, but some is used to keep the heating tubes hot.
Low compression (3~4 : 1) have the advantage they will run on just about anything, but the downside is efficiency.
A low compression engine has two significant flaws.
1. for a given power output, the engine needs to be large.
2. you are extracting a low % of the energy contained in the fuel, so for a given power, the fuel consumption is very high.