mrdanny Posted March 14, 2012 Share Posted March 14, 2012 has any one tried changing from a 125 to a 130 helix prop on a moster im thinking about changing to save fuel and gain a bit of thrust is it worth the cost Quote Link to comment Share on other sites More sharing options...
aquatix Posted March 15, 2012 Share Posted March 15, 2012 No - not unless you fully understand the relationship between prop length, pitch angle and blade width - and how that relates to the engines peak torque / rpm and power band under load. Also, Vitorazzi specify a unique blade design which aids engine cooling and have spent a lot of time matching the ideal prop to their motor for optimum power / economy, so I doubt you would do any better simply by buying a longer one off the shelf........ Quote Link to comment Share on other sites More sharing options...
paramotormike Posted March 15, 2012 Share Posted March 15, 2012 Also might be getting a bit close to the Cage? Quote Link to comment Share on other sites More sharing options...
pauldeakin Posted March 16, 2012 Share Posted March 16, 2012 Vittorazi do sell a 130cm Helix prop. The 130cm prop is an option when you buy a new Moster engine, so we can assume that it has been fully tested by them. Some paramotor manufacturers that offer a choice of the 125cm or 130cm prop on the Moster engine claim more thrust from the 130cm. For example: PXP Moster with 125cm prop = 70Kg thrust, PXP Moster with 130cm prop 73Kg thrust. Only consider doing this if you have enough cage clearance. Prop cloning - You can often find clones of the original tested and recommended props that give the same performance at a better price, but I do not know of a clone of the the 130cm Helix Moster prop. Quote Link to comment Share on other sites More sharing options...
PHIL107 Posted November 1, 2012 Share Posted November 1, 2012 has any one tried changing from a 125 to a 130 helix prop on a moster im thinking about changing to save fuel and gain a bit of thrust is it worth the cost[/qu ...... reply from phil107 "the updated redesigned helix prop for the moster aids better cooling of the engine.when changeing from a 125 prop then going to a helix prop 130cm it will be far better.you will notice a difference.and the helix prop is stronger.hence why its made of carbon fibre." Quote Link to comment Share on other sites More sharing options...
PHIL107 Posted November 1, 2012 Share Posted November 1, 2012 Also might be getting a bit close to the Cage? .........depending on the size of cage at present.or put a spacer connected to the prop for better clearance Quote Link to comment Share on other sites More sharing options...
PHIL107 Posted November 1, 2012 Share Posted November 1, 2012 No - not unless you fully understand the relationship between prop length, pitch angle and blade width - and how that relates to the engines peak torque / rpm and power band under load. Also, Vitorazzi specify a unique blade design which aids engine cooling and have spent a lot of time matching the ideal prop to their motor for optimum power / economy, so I doubt you would do any better simply by buying a longer one off the shelf........ "you will do far better if you change to a 130cm helix prop that has been redesigned for better cooling too.it depends if you fully understand the relationship between prop length. pitch angle and blade width.and power.etc" Quote Link to comment Share on other sites More sharing options...
morgy Posted November 2, 2012 Share Posted November 2, 2012 If you contact Vince from custom air i am sure he will be able to tell you all the option available on your moster.. Quote Link to comment Share on other sites More sharing options...
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