<div><span style="font-size: larger;">Hi,
I've tried a new PT 20x13l 3 -sheets. I can only recommend it. Weight is 50g, even at low weight very, very good stiffness. PT model is now doing the propellers from a finer carbon fibre, so propeller looks better , also optically.</span></div><div><span style="font-size: larger;">A propeller is silent during a flight, there is no a reduction in performance of the engine hacker c5014xl - the current consumption at a full throttle is about 76 A (JETI Mezon). It more brakes c ompared with 2 sheets PT 21x14lis , also it has a better linearity (it is more pleasant for me).</span></div><div><span style="font-size: larger;">The advantage compared with the old hard version is, that the engine doesn&acute;t heat significantly, from which I had concerns before the flight .</span></div><div><span style="font-size: larger;">Propeller I purchased directly by the manufacturer PT model.</span></div><div><span style="font-size: larger;">

I have also a PT 21x14l, weight is beautiful 37g. In stronger wind propeller very well goes against the wind.</span></div><div><span style="font-size: larger;">More pleasant is the price compared to the competition!

Best Regard
Jan Kr&aacute;l, Czech F3A Team<br type="_moz" /></span></div>

Has this propeller the same shape as the «old» PT 20X13 3b at 95 grams? Are there any difference in amp usages between the new and the old?

Kind regards,
Henning

Yes, form be like each other, change structure composit word. What's the difference in amps delivery issued new versus old I don't know, that shan't, Shall I only new about materiality 50g. But by experience from 21x14 old v. 21x14L new I know, that the near venial propeller flow lightly dropped plus in group isn't need mock - up bone so much on flow.

Jan K<br type="_moz" />

If that's the google translator at work it didn't quite get the job done.

However, in general it is amazing what the guys from the Czech Republic are doing with props. I finally found my favorite prop for my Pletty Advance-powered Caelestia, which is the Mejzlik 20.5x12WEL. It weighs in at 43g, which may sound a bit "hefty" (LOL) by current cutting edge standards, but the blades are very wide and the downline braking is perfect for a slippery airframe. I have a similar APC prop that weighs 146g.

I don't have a figure for the Amp draw. However, I have confirmed several times consumption of ~2300 mAh for AMA Advanced sequence in fairly windy conditions.

Bob, is the 20.5x12 WEL a 3 blade prop or 2 blade?

Matt, it is a 2-blade.

The standard PT 20x13 3B at 95 grams is one of the best propellers I have tried on the Pletty Advance. Good breaking and constant speed. Lighter propellers will reduce the gyro-forces but will also give me a challenge with balancing out the plane. I will probably have to get a TruTurn spinner with a solid back plate to compensate for the “heavy” propeller I use today.

Regards,
Henning

Or move the main battery forward a few millimeters!

Unless it is already as far forward as possible...[X(]

Is already as far forward as possible. They are built to balance out with heavy APC-E props.


Regards,
Henning