skyhawk Posted January 25, 2008 Share Posted January 25, 2008 hiya, i have an older pap 1100 as solo 210 powered motor. I smashed the original 4 blade prop and am having a hell of a job finding another. has anyone fitted a 2 blade prop to one of these ? the prop is 98 cm long and has 6x6mmx50mm mounting holes. also would anyone know the correct pitch ? thanks in advance james Quote Link to comment Share on other sites More sharing options...
Guest Posted January 25, 2008 Share Posted January 25, 2008 Try Paul Kilburn on 07859 822868. He'll probably be able to sort you out for around a ton. Quote Link to comment Share on other sites More sharing options...
weesplat Posted January 25, 2008 Share Posted January 25, 2008 Hi, You could also try TP props they are on the net based in Thialand and do a huge range of props two blade, three blade and four blade in all the popular sizes. Their delivery time is pretty good as well 3 days for the one I ordered. Hope you get one soon as not flying is just a bummer. Cheers Col...... Quote Link to comment Share on other sites More sharing options...
bendmeroundthehedge Posted January 26, 2008 Share Posted January 26, 2008 Hi James, I am fairly new to this sport, but I'll give you my take on it. Feel free to correct me if I'm wrong. 2 bladed props are more efficient than 4 bladed. More blades allow bigger motors to have a smaller prop diameter. Fitting a 2 bladed prop will depend on your reduction - drive ratio. The idea is to keep the prop tips spinning about Mach 0.6. After this it gets too noisy and less efficient. 2 stroke engines produce the most power at high rpm, hence the reduction drive to keep the prop speed down. To work out your tip speed take the rpm multiply by prop diameter (in inches) then divide by 256000 for example: 6500(rpm) x 44(inches - prop diameter) divide by 256000 = 1.12(Mach) which would be ridiculous, hence the need for the reduction drive. The Vittorizi Easy 100, also the new pulse prop uses the same size as you mentioned (6 x6mm x50mm) running anti-clockwise. The reply might be a bit geeky, but it will hopefully help someone. Bendme Quote Link to comment Share on other sites More sharing options...
Guest Posted January 26, 2008 Share Posted January 26, 2008 Bloody hell Kev!!! and you want me to teach you!!!!!!!!!!!!!! Quote Link to comment Share on other sites More sharing options...
Guest Posted January 27, 2008 Share Posted January 27, 2008 I've never liked prop installations like the FB Monster or the PAP 1100 Solo with 4 blades as they just give you the chance to wreck 2 props in one stumble rather than one! Paul Kilburn was the UK importer for TP until recently and still has a load of their stock which may suit you. The prop I tried from Thailand was shocking though, although I believe they are not as apalling as some of the $55 props from Mexico some of my friends have tried! Quote Link to comment Share on other sites More sharing options...
trevd1 Posted January 30, 2008 Share Posted January 30, 2008 Hi try this site http://www.nipon-propeller.com/ Quote Link to comment Share on other sites More sharing options...
Guest Posted January 30, 2008 Share Posted January 30, 2008 TP Props shocking, I have only seen twp TP props, one was as bad as it could be and still be called a prop, the other not to bad. SW Quote Link to comment Share on other sites More sharing options...
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