Microlighters

I am in the market for a new propeller and I have heard so many stories about this prop and that prop I'm confused. Now to confuse me even more I need info/stats on various props. What do you use and what is the performance like? With my three blade warp (which has now been reduced to an off balance two blade) I was running at an average of 54mph doing 5400rpm. Climb was around 1000fpm. Fuel consumption was about 16l/h. Has anybody heard of or seen the props that one can buy from India? Got a quote of $290 for a wooden two blade delivered to Cape Town.

I run an aeros three blader and its very mooth, apparently very efficient. Very shiny and looks very bling. Apparently they they don't take stone strikes to well, or runway strikes for that matter

The de Necker props are apparantly briliant

I run a NC 3 blade. Darkhelmet runs a Warp drive and the other day when he took my bird for a spin I heard him throttling down on the take-off roll because the thrust of the NC prop overwhelmed him (Our planes are identical exept for the prop). Having said that, the NC was recently balanced and adjusted by Alan Piltz and Darkhelmet's Warp has had more than a few stone strikes - It aint called Kliprivier for nothing

My 2c

In January this year, I imported a 2-blade wooden prop from Aircraft Spruce in the States, for US $199.00 + transport. At the time the exchange rate was US $1 - R6.80. All in all it cost me approx R1,600. The quality is excellent and the service outstanding. You can find their web site on www.aircraftspruce.com

A wooden prop inport

Nothing can beat our Peter de Necker props.

Splitter wrote:A wooden prop inport

Nothing can beat our Peter de Necker props.

Agreed except price. The P-Props are double the price.

The P-Props are double the price.

And lately, a little more than that......
And what's more, the price is/was/used to be "regulated" by the main players. I'm not naming any names

When selecting a prop you are stuck with your choice if you buy a wood prop. The ground adjustable prop allows for fine tuning to get the desired ratio between speed and power. The pitch on a wood prop is not very accurate. Even a P-prop. The length of the prop should be such that the tip speed is maximum 260 m/s (3.142 x Diameter x RPM)
I find that the almost constant speed wood props with straight trailing edge, like the Warenke, gives good results. As the prop take load it twist into a finer pitch for a better climb and at speed the bite reduce and the prop flex less to give a courser pitch for higher speed.