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Old Nov 13, 2013, 04:18 PM
RAPTORKILLER
Joined Feb 2012
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Sbach 342 70 engine selection help!!

The recommended engine is a .52-.82 cu in 4 stroke but the prop recommendation is a 16 x 10e - 17 x 8e, how on earth would a .82 four stroke rev a 16x10 prop? Is this something thats wrong on there side?
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Old Nov 13, 2013, 05:54 PM
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winston mo
Joined Oct 2006
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thats the electric prop recommendition.
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Old Nov 13, 2013, 08:01 PM
RAPTORKILLER
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Is there a chart with the difference between gas and electric props? How can I know the gas prop recommended?
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Old Nov 14, 2013, 12:19 AM
NZ - Where Kiwi's love to fly.
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Joined Apr 2010
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Most engine manufacturers state what props go with a specific engine within the instruction manual.
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Old Nov 21, 2013, 04:50 PM
TigreJohn
United States, CA, Corona
Joined Aug 2008
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I presume your talking about a Saito 82 4S. They recommend a 13x8. OS for their 81 4S suggests a range: 13x7-9 and 14x6-7
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Old Dec 09, 2013, 01:45 AM
RAPTORKILLER
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So for hovering and 3D what could be a good choice of prop? like if I get it right a smaller diameter with a bigger pitch is for speed and a larger prop and less pitch is for thrust at lower speed?
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Old Dec 09, 2013, 09:51 AM
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winston mo
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This may be a trial and error thing. I would start with a 14/6 prop 1st.
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