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Author Topic: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP  (Read 2377 times)

Offline Frank Imbriaco

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XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« on: June 13, 2021, 06:19:32 PM »
Has anyone used these ?
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Offline Rogerio Fiorotti

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #1 on: June 13, 2021, 06:51:08 PM »
 Yes, I used Gaupner 10x5 with BadAss 2814 1300kV, TP 4S 2200mA on a Vector 40 and Nobbler Top Flite. Show.

In a Hole Shot built by Fred Cesquim.

Fiorotti
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Offline Frank Imbriaco

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #2 on: June 14, 2021, 06:14:31 AM »
Hi Rogerio :
Thanks for your reply. If you don't mind, I have a few questions:
1) The Graupner prop is drilled 8mm. Did you find a commercially available vendor who makes reducing bushings from 8mm to 5mm ? Of course, one could always locate a machinist .
2) How much battery, percentage wise, do you have in reserve after a full pattern using your 4S 2200mAh?
3) Are you satisfied with the performance as compared to say two blade APC offerings such as their 10x5.8 F2B, 11x 4.5E, and 11x5.5 E

Thanks Again !
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Offline John Rist

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #3 on: June 14, 2021, 08:00:54 AM »
What is a good source for Graupner 10x5 E or for that matter all Graupner props?
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Offline Frank Imbriaco

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #4 on: June 14, 2021, 09:43:33 AM »
Correction :
 I believe the bushing should be sized from 8mm prop opening down to the size of the threaded prop shaft. Speaking of threaded shafts, I like the aluminum ones that come with E-Flight motors. They have a 1/4-28 threaded prop shaft and includes a colette that works with a 5MM motor shaft.
Please don't take this as Gospel as I've yet to purchase the Graupner prop.
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Offline Frank Imbriaco

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #5 on: June 14, 2021, 10:29:10 AM »
Quote from: John Rist on June 14, 2021, 08:00:54 AM
What is a good source for Graupner 10x5 E or for that matter all Graupner props?

Graves RC in Orlando, Fl has only left hand(pusher) 10 x 5 Graupner Props. SKU GRU1333. ($12.90 ) each

 They also have 8mm to 6mm reducers which I believe "should" work. SKU GRU197.60(2.60) each
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Offline Rogerio Fiorotti

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #6 on: June 14, 2021, 07:51:31 PM »
Quote from: Frank Imbriaco on June 14, 2021, 06:14:31 AM
Hi Rogerio :
Thanks for your reply. If you don't mind, I have a few questions:
1) The Graupner prop is drilled 8mm. Did you find a commercially available vendor who makes reducing bushings from 8mm to 5mm ? Of course, one could always locate a machinist .
2) How much battery, percentage wise, do you have in reserve after a full pattern using your 4S 2200mAh?
3) Are you satisfied with the performance as compared to say two blade APC offerings such as their 10x5.8 F2B, 11x 4.5E, and 11x5.5 E

Thanks Again !

Hi Frank,

1) I have a lathe where I make the bushings for the propeller support diameter.
2) Using TP 2200mA 4S battery, the voltage of each cell is approximately 3.75V always remembering using the Graupner.
3) My opinion on active timers works fine with 3-blade propellers, the only comparison I made was with 11x5.5 APC and I prefer Graupner.

Rogerio.
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Offline Rogerio Fiorotti

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #7 on: June 14, 2021, 07:55:59 PM »
Quote from: Frank Imbriaco on June 14, 2021, 10:29:10 AM
Graves RC in Orlando, Fl has only left hand(pusher) 10 x 5 Graupner Props. SKU GRU1333. ($12.90 ) each

 They also have 8mm to 6mm reducers which I believe "should" work. SKU GRU197.60(2.60) each

https://www.ebay.com/itm/184815079679?hash=item2b07d650ff:g:ajAAAOSwSl1gkeJa
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Offline Vitalis Pilkionis

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #8 on: June 14, 2021, 10:21:02 PM »
Those electric props were produced to Graupner by Peter Schulze Kunststofftechnik GmbH in Germany.
They call them SUPER Electro Line. One can find all the assortment here:
https://www.schulze-luftschrauben.de

or possibly buy from lindinger.at:
https://www.lindinger.at/de/Flugzeuge/Flugzeug-Antriebe/Luftschrauben/SUPER-Electro-LIne-3-Blatt-10x5-25x12-5-cm-schwarz-1Stk.-Luftschraube/9766721
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Offline John Rist

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #9 on: June 15, 2021, 12:18:16 PM »
Quote from: Frank Imbriaco on June 14, 2021, 10:29:10 AM
Graves RC in Orlando, Fl has only left hand(pusher) 10 x 5 Graupner Props. SKU GRU1333. ($12.90 ) each

 They also have 8mm to 6mm reducers which I believe "should" work. SKU GRU197.60(2.60) each

Thanks.  Have 2 on order to try.  I currently an flying L hand props.
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Teodorico Terry

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #10 on: June 16, 2021, 08:09:33 AM »
Hi -

I see that people will generally list the motor, prop, esc and battery combination being used but not the RPM.  For a pitch of 4, in order to get the model up to 50 mph, or so you need to spin the prop at 13K RMP which seems really high to me.  Out of curiosity why RMP are being reached?

Thanks,

Teo
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Offline John Rist

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #11 on: June 16, 2021, 08:25:18 AM »
Quote from: Teodorico Terry on June 16, 2021, 08:09:33 AM
Hi -

I see that people will generally list the motor, prop, esc and battery combination being used but not the RPM.  For a pitch of 4, in order to get the model up to 50 mph, or so you need to spin the prop at 13K RMP which seems really high to me.  Out of curiosity why RMP are being reached?

Thanks,

Teo
I am running a 5.5 pitch EP @9200 rpm
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Teodorico Terry

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #12 on: June 16, 2021, 11:51:33 AM »
John,

Thank you for the reply.  At that RPM your pitch speed is in the 47 mph range, by any chance do you know your line length and typical lap times?  Thanks.  I am trying to figure out if I am trying to fly too fast, although my lap times seem to be in the 5.6 sec range on 65ft lines.

Thanks,

Teo
« Last Edit: June 16, 2021, 01:01:51 PM by Teodorico Terry »
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Offline John Rist

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #13 on: June 16, 2021, 12:51:36 PM »
Quote from: Teodorico Terry on June 16, 2021, 11:51:33 AM
John,

Thank you for the reply.  At that RPM your pitch speed is in the 47 mph range, but any chance do you know your line length and typical lap times?  Thanks.  I am trying to figure out if I am trying to fly too fast, although my lap times seem to be in the 5.6 sec range on 65ft lines.

Thanks,

Teo
62' lines.  Not sure of lap times but I think it is in the 5.? second range.  It seem about right for stunting.  Good line pull and time to think.  Next time I fly I will check it and let you know.
PS 5.5 is the stated pitch.  It's anybody guess what the true pitch is.
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Offline Rogerio Fiorotti

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #14 on: June 16, 2021, 09:33:50 PM »
Quote from: Motorman on June 14, 2021, 08:44:18 PM
Only $70 shipping

No, more options.
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Teodorico Terry

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #15 on: June 17, 2021, 09:14:15 AM »
Thank you John.  I can get an idea of the speed based on the info you provided.

Teo
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Offline Frank Imbriaco

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #16 on: June 17, 2021, 01:22:58 PM »
Quote from: Rogerio Fiorotti on June 14, 2021, 07:51:31 PM
Hi Frank,

1) I have a lathe where I make the bushings for the propeller support diameter.
2) Using TP 2200mA 4S battery, the voltage of each cell is approximately 3.75V always remembering using the Graupner.
3) My opinion on active timers works fine with 3-blade propellers, the only comparison I made was with 11x5.5 APC and I prefer Graupner.

Rogerio.
Hi Rogerio :
 Mind I ask what RPM you are spinning with the 10x5 Graupner Prop on your Nobler? I just received mine from Graves RC and while they're impressively light , they're  not as rigid as the  APC line of 10" and 11 " electric props commonly used for electric stunt these days. In fact, the hub is quite narrow- almost multi-rotor like, but the prop( from what Graupner advertises) isn't purposed for multi-rotor. They once had a  tractor variety of this prop, but I no longer can find such for sale.
Thanks
I hope to use it once my new TP 5S 25C 2200mAh are broken in.
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Offline Rogerio Fiorotti

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #17 on: June 23, 2021, 05:33:18 PM »
Quote from: Frank Imbriaco on June 17, 2021, 01:22:58 PM
Hi Rogerio :
 Mind I ask what RPM you are spinning with the 10x5 Graupner Prop on your Nobler? I just received mine from Graves RC and while they're impressively light , they're  not as rigid as the  APC line of 10" and 11 " electric props commonly used for electric stunt these days. In fact, the hub is quite narrow- almost multi-rotor like, but the prop( from what Graupner advertises) isn't purposed for multi-rotor. They once had a  tractor variety of this prop, but I no longer can find such for sale.
Thanks
I hope to use it once my new TP 5S 25C 2200mAh are broken in.

Hi Frank,

Sorry for the delay to reply.

With this propeller the RPM is much higher 10900 rpm, so i use 1300kV.

Rogerio Fiorotti
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Offline Frank Imbriaco

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Re: XOAR 10 x4E THREE BLADE WOOD PROP & GRAUPNER THREE BLADE 10 X5E COMPOSITE PROP
« Reply #18 on: June 23, 2021, 07:32:28 PM »
Thank you.
 I'm spinning mine up to a little over 12K using a Badass 2820/ 780 KV in a 48 ounce Caprice. 
5S 2200 TP battery.
 5.1sec lap time on 59' .014 lines.
time.
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