Carbon Props

[aglenn]

Does anybody have info on these carbon fiber props that the germans are using?????

[ChrisBowker]

try searching for wes tec(might be wes teck i cant remember) i still have some carbon props i got from them a while ago for a dc 1717 but ive drilled them out to run on bigger out runners.

chris

[sairaghi]

try searching for wes tec(might be wes teck i cant remember) i still have some carbon props i got from them a while ago for a dc 1717 but ive drilled them out to run on bigger out runners.

chris

hi, look www.wes-technik.de
stefano

[ChrisBowker]

hi, look www.wes-technik.de
stefano

AWESOME! thanks.

Chris

[Wetafly]

Dont know if this is any help to you, but here is a pic of my prop molds and some props made on them.
The props are 3 or 4 layers of 100 gm carbon vacuum bagged (heat shrink works too)
The middle prop is APC 8x3.8 copy and weighs 3 gm (original 6gm) this is the same as GWS 7x 3.5.
Maybe I should do a GWS and possibly get them down to 1 gm!

Regards Rod

[Draganfly]

The wooden blocks are formed to the APC prop perfectly, then the APC prop removed and replaced with soaked CF cloth, then vacuumed?

-Adam

[Wetafly]

The APC prop is glued to the block then waxed and release agent applied. Carbon is layed up over that so the carbon takes the form of the front face of the APC prop. This is not ideal but in practise make very little difference to performance. Just lighter and you can make a new one anytime.

Rod

[Jurgen Heilig]

Does anybody have info on these carbon fiber props that the germans are using?????

It is mostly the Dutch pilots who are using WES (German) carbon props. ;)

Only Martin Müller uses a DIY carbon prop.

:) Jürgen

[Szymon Bartus]

I can't understand why Dutch pilots pay 30EUR for one propeller? :eek:
For keeping low weight?

[Jurgen Heilig]

I can't understand why Dutch pilots pay 30EUR for one propeller? :eek:
For keeping low weight?

Well, if you can feel the difference - why not?

:) Jürgen

[HolgerL]

Hi
The best german pilots in the king-class F3A used RASA-Carbonprops (Bernd Beschoner...), there are handmade by Ragmar Sanftenberger, Ragmar have maked the custom propellers for Manuel Nübel too, but often its difficult to become a RASA Prop, he make not enough.
The F3A Props:
http://www.plettenberg-motoren.com/german/Zuebhoer.htm
Slow-Props: (APC-like)
http://www.morris-modellshop.de/index.html?P_250.htm

[Bryan Davison]

This place has 10x5 and 8x4.5 carbon fiber props for indoor use, but I dont know how much they cost or what they look like.

http://www.bollyprops.com/carbonprops.html

There's always the Wes-Tecknik props, but kinda pricey. Here is a Canadian retailer, but they will sell to the US.
http://www.skyhooks.ca/props.htm

[Jurgen Heilig]

This place has 10x5 and 8x4.5 carbon fiber props for indoor use, but I dont know how much they cost or what they look like.

http://www.bollyprops.com/carbonprops.html

...

Those sizes seem to be way too big for nowadays models. ;)

:) Jürgen

[Trisquire]

What's the advantage of going smaller? Are smaller props more efficient, or do pilots go smaller to save weight?

Regards,
Tom

[Jurgen Heilig]

What's the advantage of going smaller? Are smaller props more efficient, or do pilots go smaller to save weight?

Regards,
Tom

The trend goes towards lighter models and lighter motors. The smaller (11g) motors don't have the torque to turn those huge props.

:) Jürgen

[Bryan Davison]

Your saying a 8x4.5 is too big? hmmm...Ive been using the 8x4 on my axi 2204/54 for a long time. What size props are you guys using on the F3A planes? Alot of the competition pilots over here are actually going to even larger props. Many of us at the freestyle championships were using props as large as 12x6.

What are you guys running 6x4's? Why? Speed propping a plane and then using speed brakes to slow it down?

[can773]

What size props are you guys using on the F3A planes?


I think you mean F3P....F3A models run anywhere from 15-22" :D

F3P is not F3A....

[Trisquire]

Jürgen posted these specs for a German qualifying competition. The prop sizes are given.

Regards,
Tom

[Bryan Davison]

oops...I meant F3Ai

Thanks Trisquire. Thats about what I figured, many are using the 8x4.

[Jerry Combs]

Looking at the information in post # 18, it looks like 2 6" props, 8 7" props, 12 8" props and 2 9" props. Sounds to me like the 7" or 8" props are the preferred way to go.

Jerry

[Jurgen Heilig]

...
Sounds to me like the 7" or 8" props are the preferred way to go.

Jerry

It depends very much on your motor. For an 11g motor even a 7" might already be too big.

:) Jürgen

[Jerry Combs]

Jurgen,

Yes the motor that one uses does make a difference. Since I don't have an 11 gram motor but do have a Westport that weighs around 20 grams I am using an 8" prop. Now on my micro F3P style model (47 grams) that has a 6gram motor I run a 5" prop.

Jerry

[Bryan Davison]

Where the heck are you guys finding 6g brushless motors? The lightest thing Ive seen so far is that little 12g MicroMax, and Im still skeptical about its reported weight.

[fwilly]

http://bsdmicrorc.com/products.cfm?catID=10037

3.5-7.9g brushless

The Mighty Midget 13mm 2 or 3-cell Double Whopper Mild Wind looks like it could handle an F3P plane pretty well with 205g of thrust on 3s with a 6x3. Wonder what it would do with a 7x3.5 and 2s.

[Alexandre Cruz]

I can´t understand why trying so small planes, like this you are going to fly F3P in your living room.
I already have to go to the gym so why building a smaller plane?

[Jerry Combs]

Alexandre,

The 47 gram model spans 19" or 483mm and is perfect for the times that I only have access to a 1/2 court gym where I could not personally fly my larger models. It handles nearly identical to my larger models.

Jerry

[Alexandre Cruz]

That is a must see plane, please post it when it is ready. Which power system are you using because my 300 2S weights 18,5g plus 5,5 on the ESC and 2.8 for the GWS prop the is only 6g for :eek: the motor, what is that?

[Jerry Combs]

Alexander,

Here are a couple of pictures of my micro Ballerina. Power is a Mighty Midget from BSD. The kit of the Ballerina will be available from BSD in the near future.

Jerry

[Alexandre Cruz]

Which servos are you using?
I was thinking about trying thos linear magnet actuator (1,5g and 60g/cm of torque) is it enought?

[Jerry Combs]

Alexandre,

Falcon servos only weigh 1.6 grams and have better resolution than the linear actuators from what I have seen from using both. Admittedly it was not on the same type of model. Neither the Falcons nor the linear actuators are as smooth nor do they center as well as a good 6 gram servo. Still there are applications for both.

Jerry
Sorry to be off topic

[Trisquire]

Jerry,

You've mentioned the motor and servos. What receiver and ESC are you using in your micro Ballerina?

Regards,
Tom

[Jerry Combs]

Tom,

I am using a Falcon receiver and Castle Creations Thunderbird 9 ESC that has been lightened using MUCH lighter wire. I have also used the JMP receivers with good results, just didn't have one on hand when I built the micro Ballerina's. I would have used a CC Phoenix 10 or a YGE4 but had to cut costs somewheres.

Jerry

[Trisquire]

Thanks Jerry. With the exception of the motor and battery pack, I would be set up.

Anyway, back to Carbon Props. :D

Regards,
Tom