What kind of prop??

[procharger]

About ready for new prop I am not experimental so what's legal or recommended these days and cost?

[Tom Baker]

A new E-Prop with an MRA. Should have bought a month ago, the exchange rate was better then.

[procharger]

DUR-3-165-C4-T (CTSW 912 gear ratio 2.27)

EUR 1610.00€ 1449.00€ VAT exc is this it??

[procharger]

Looks like 1499.00 us is that good? current ex. rate

[Roger Lee]

17 minutes ago, procharger said:

DUR-3-165-C4-T (CTSW 912 gear ratio 2.27)

EUR 1610.00€ 1449.00€ VAT exc is this it??

The gearbox ratio is 2.43:1

[Jacques]

E-Props are on Black Friday sale now

a Durandal 3 blades is 1449 euros + 329 for the spinner = 1778 euros

roughly ...U$ 1850.   plus import fees on your side.

[FlyingMonkey]

On 11/11/2022 at 3:44 PM, Jacques said:

E-Props are on Black Friday sale now

a Durandal 3 blades is 1449 euros + 329 for the spinner = 1778 euros

roughly ...U$ 1850.   plus import fees on your side.

Hell of a deal.  Get one guys.

[GrassStripFlyBoy]

9 hours ago, FlyingMonkey said:

Hell of a deal.  Get one guys.

Pulled the trigger Tuesday, yup 1778 euro and exchange rate is decent these days too.  Merry Christmas to me!

[FlyingMonkey]

43 minutes ago, GrassStripFlyBoy said:

Pulled the trigger Tuesday, yup 1778 euro and exchange rate is decent these days too.  Merry Christmas to me!

Congrats, I think you'll really like it.  Even if you don't gain any performance (you will), the 7-8lb gone right off the nose is significant.

[Jacques]

yes, your 'numbers' will be better  but to me,  less inertia and vibration are the big +.

a friend recently put one on his SW in Western Canada  here is what he wrote me:

'' 5700 rpm on the initial roll, 5400 at 65 with 15 flaps, 5350 at 80 zero flap, and 5500 at 100kts minus 12, with a 700fpm climb to 9000, 500fpm to 12500. 120+KT cruise at 2/3 throttle. Works better then the Kaspar''

the Kaspar is the IN FLIGHT ajustable that he had for 1300 hrs

[Anticept]

I also had put one on.

Aside from the stuff everyone already mentioned, the extremely lightweight prop also reduces movement of the dogs in the gearbox, which means lower wear. The softer shutdown is a big piece of evidence.

[procharger]

What size spinner should I order for my 2007 ctsw and do I need anyting

else to install it?? thanks

[Bill3558]

Love mine. So much smoother and picked up 5 knots cruise. It will over rev slightly on takeoff so feed the power in gently. At 30 knots or so it will bite and put you back in the seat. 

[opticsguy]

Rather then start a new topic, is the spinner diameter and spacer length on the CTSW page on the E-props website the correct one?  I'm E-LSA now and thinking about switching the prop.

[FlyingMonkey]

1 hour ago, opticsguy said:

Rather then start a new topic, is the spinner diameter and spacer length on the CTSW page on the E-props website the correct one?  I'm E-LSA now and thinking about switching the prop.

There is no spacer for a CT, the hub fits directly to the prop flange.  If you select the three Blade v20 Durendal prop for the CT it should be correct.  The exact prop part number is around here somewhere if you need it I can try to fish it out of my files.

[Jacques]

as for spinner diameter,,,just the same as the Neuform

[opticsguy]

OK. I'll buy what is recommended on the web page for the CTSW.  Looking forward to the extra speed.  Is the protractor tool worth buying, or the lug removal tool?

[Tom Baker]

Airtime Aviation has them in stock, at least they did a few weeks ago. You might check with them and see if they are competitive on price.

I made my own drive lug removal tool out of PVC tubing, and a quarter inch bolt, and I use my own prop pitch tool. Their prop pitch gauge is kind of cheap, but I guess it gets the job done. 

[Jacques]

7 hours ago, Tom Baker said:

Airtime Aviation has them in stock, at least they did a few weeks ago. You might check with them and see if they are competitive on price.

..........and I use my own prop pitch tool. 

Tom,  can you tell what/how  you use ? thanks

[Roger Lee]

You can easily use a 12" digital level you can buy at Ace Aviation. You can use it to level each blade and set the pitch by placing it on the back of the blade. This doesn't have to be hard or complicated. I teach this in my classes because Rotax doesn't.

[FlyingMonkey]

32 minutes ago, Roger Lee said:

You can easily use a 12" digital level you can buy at Ace Aviation. You can use it to level each blade and set the pitch by placing it on the back of the blade. This doesn't have to be hard or complicated. I teach this in my classes because Rotax doesn't.

Yes.  And the e-Props tool is crap.

[Tom Baker]

2 hours ago, Jacques said:

Tom,  can you tell what/how  you use ? thanks

I have posted pictures before, but if I have time later I will take a couple more and post.

[opticsguy]

Is the spinner from the Neuform prop OK to use again or do you need to buy the E-props one?

[Tom Baker]

The old spinner will not work.

[Jim Meade]

I've used the e-props tool successfully.  I now use a different method because it's faster, but to set the initial pitch the e-props tool is OK in my experience.

After that, it's faster to use a level to set the first blade, then measure from the tip to the floor and repeat that distance for subsequent blades. 

All an initial pitch does is set a reference point to adjust to achieve 5500 +- WOT.  e-Props uses the spinner backplate as a zero base.  It's as good as any.

From the initial pitch, use a digital protractor right on the back side of the blade and measure the difference from vertical.  It may well be 60 degrees or so.  I use where the titanium leading edge joins the blade so that I have a consistent point to take the pitch measurement.  Twist the blades until you get your desired WOT RPM.