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Propeller - Flying in rain

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sidsel.svein(at)oslo.onli
Guest

Posted: Tue Jun 08, 2010 9:46 pm Post subject: Propeller - Flying in rain

Karl,  

   

Can you please elaborate on what you say at the end of your response to my question about flying in rain with air intake on top of cowling:  

   

I have flown in the rain with the standard setup, while returning from Oshkosh. I didn't notice any problems. But normally I try to avoid it, because it isn't good for the propeller.

    

Regards  

Svein  

        [quote][b]

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craigb(at)onthenet.com.au
Guest

Posted: Tue Jun 08, 2010 11:54 pm Post subject: Propeller - Flying in rain

Heavy  rain can (apparently, have heard this from several sources) erode the leading  edge of some props, in much the same way as sand can

 which  makes sense if you think about the water jet machining done these days, mind you  i wonder how long it would take to see any sort of

 meaningful wear.

  

 If  anyone has any firsthand experience with this i am sure the group would love to  hear about it.

  

 craig

 [quote]   --

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davidjoyce(at)doctors.org
Guest

Posted: Wed Jun 09, 2010 12:59 am Post subject: Propeller - Flying in rain

Craig/Svein, I have heard of a Woodcomp prop stripping off some of its 

carbon fibre sheathing in heavy rain, but having said that probably the 

majority of the guys that I have flown with (& my own plane) have Woodcomp 

props that have shown absolutely no effect.

 Regards, David Joyce, G-XSDJ

---

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RobHousman

Joined: 29 Mar 2010
Posts: 7
Location: Irvine, CA

Posted: Wed Jun 09, 2010 10:10 am Post subject: Propeller - Flying in rain

I cannot speak from personal experience but having worked for a manufacturer of leading edge abrasion strips for ten years I can offer a relevant comment.  In the case of composite propeller blades and rotor blades the industry (with one notable exception, Robinson) use electroformed nickel on the leading edge to protect against both rain and solids that would otherwise damage the leading edge.  Other materials are better for either rain or solids but nickel is a superior compromise because it protects against damage from both.  

   

In commercial or military service composite blades require leading edge protection of some sort and if not nickel then stainless steel (Robinson) is used.  Obviously our Europas will not be flown regularly in rain but any flown often from dirt strips should be equipped with leading edge protection on composite (or wood) blades.  

   

   

Best regards,  

   

Rob Housman  

Irvine, CA   

Europa XS Tri-Gear  

A070  

Airframe complete  

   

   

       

From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com] On Behalf Of craig bastin

 Sent: Wednesday, June 09, 2010 1:01 AM

 To: europa-list(at)matronics.com

 Subject: RE: Propeller - Flying in rain  

  

  

     

Heavy rain can (apparently, have heard this from several sources) erode the leading edge of some props, in much the same way as sand can  

    

which makes sense if you think about the water jet machining done these days, mind you i wonder how long it would take to see any sort of  

    

meaningful wear.  

    

   

    

If anyone has any firsthand experience with this i am sure the group would love to hear about it.  

    

   

    

craig  

   	  Quote: 	
		    

-----Original Message-----

 From: owner-europa-list-server(at)matronics.com [mailto:owner-europa-list-server(at)matronics.com]On Behalf Of Sidsel & Svein Johnsen

 Sent: Wednesday, June 09, 2010 3:44 PM

 To: europa-list(at)matronics.com

 Subject: Propeller - Flying in rain  

Karl,  

   

Can you please elaborate on what you say at the end of your response to my question about flying in rain with air intake on top of cowling:  

   

I have flown in the rain with the standard setup, while returning from Oshkosh. I didn't notice any problems. But normally I try to avoid it, because it isn't good for the propeller.

    

Regards  

Svein   	  Quote: 	
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       [quote][b]

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loboloda(at)execulink.com
Guest

Posted: Wed Jun 09, 2010 11:04 am Post subject: Propeller - Flying in rain

My new Sensenich has leading edge protection, but the paint on the blades is already showing signs of wear, I think due to grit on the runways and taxiways.

I'm now keeping the RPM down while taxying, hoping that this will minimise further damage.



Dave C-FBZI 

On 9-Jun-10, at 12:16 PM, Rob Housman wrote:

[quote] 

I cannot speak from personal experience but having worked for a manufacturer of leading edge abrasion strips for ten years I can offer a relevant comment.  In the case of composite propeller blades and rotor blades the industry (with one notable exception, Robinson) use electroformed nickel on the leading edge to protect against both rain and solids that would otherwise damage the leading edge.  Other materials are better for either rain or solids but nickel is a superior compromise because it protects against damage from both.

 

In commercial or military service composite blades require leading edge protection of some sort and if not nickel then stainless steel (Robinson) is used.  Obviously our Europas will not be flown regularly in rain but any flown often from dirt strips should be equipped with leading edge protection on composite (or wood) blades.

 

 

 	  Quote: 	
		  

  

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sidsel.svein(at)oslo.onli
Guest

Posted: Thu Jun 10, 2010 11:10 pm Post subject: Propeller - Flying in rain

Here is the reply from Martin Eskildsen at  Airmaster:

  

 To my knowledge  the blades should be fine in rain as the Nickel will protect the leading  edge.  Plastic tape can also be used on the inner part of the blade if  necessary.

  

 - and here are the comments from Daryl Heinemann at Warp Drive  Inc.:

  



 Martin is correct in that the blades will stand up  very well to rain as long as you have the nickel leading edges on them.  We  put on as much nickel as we can based on the diameter of the propeller which  will cover almost half of the length of each blade.  Once you get inboard  of where the nickel ends the speed of the blade at that point is much slower  than the tip so it is not as proned to wear or damage.  The Stoneguard  leading edge tapes that we can provide are in 12" lengths.  If you  know that you will fly through rain at some point we recommend cutting these  pieces in half and putting a 6" piece from the point where the nickel ends  towards the center.  This will protect the remaining inner portion of the  blades leading edge and can be pulled off and replaced if it does sustain  damage.  

  

 The only other issue with flying in rain is wearing  the painted finish off the back side of the blade.  We use a flat black  lacquer paint for the factory finish which will take some time to wear through  but you may start to see the carbon fabric pattern showing through over  time.  You can re-apply the flat black lacquer paint if needed, however,  you must take care in giving the blades an even coat or else you can throw the  balance off.  If you get to that point please let us know and we can give  more details on this. 

  

 Regards

 Svein

 LN-SKJ 

   [quote][b]

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raimo.toivio(at)rwm.fi
Guest

Posted: Fri Jun 11, 2010 10:24 am Post subject: Propeller - Flying in rain

Hi

  

 Flying in rain is a serious problem for un-coated  /varnished) pure wooden blades.

 Last summer my friend flied through a heavy rain just few  minutes and he almost lost his blades!

 All the blade tips [3] were gone and other parts of the  blades were damaged.

  

 Now he is flying again with same prop. He just cut the  damaged blade tip ends. Now he has a real climbing prop he  reported.

  

 Plane: PIK-18 (only one in the world), engine VW, prop is  hand made or factory made, I do not know so far.

  

 Engine revs before rain max 3000, now (with shortened  blades) 3300 rpm !

  

 Terveisin, Raimo Toivio

  

 Europa XS Mono OH-XRT #417 +150 hrs

  

 37500 Lempäälä

FINLAND

  

 p +358-3-3753 777

f  +358-3-3753 100

  

 toivio(at)fly.to (toivio(at)fly.to)

www.rwm.fi

  

  



  From: Sidsel og Svein Johnsen (sidsel.svein(at)oslo.online.no) 

 Sent: Friday, June 11, 2010 10:09 AM

 To: europa-list(at)matronics.com (europa-list(at)matronics.com) 

 Subject: Propeller - Flying in rain

 



  Here is the reply from Martin Eskildsen at  Airmaster:

  

 To my knowledge  the blades should be fine in rain as the Nickel will protect the leading  edge.  Plastic tape can also be used on the inner part of the blade if  necessary.

  

 - and here are the comments from Daryl Heinemann at Warp Drive  Inc.:

  



 Martin is correct in that the blades will stand up  very well to rain as long as you have the nickel leading edges on them.  We  put on as much nickel as we can based on the diameter of the propeller which  will cover almost half of the length of each blade.  Once you get inboard  of where the nickel ends the speed of the blade at that point is much slower  than the tip so it is not as proned to wear or damage.  The Stoneguard  leading edge tapes that we can provide are in 12" lengths.  If you  know that you will fly through rain at some point we recommend cutting these  pieces in half and putting a 6" piece from the point where the nickel ends  towards the center.  This will protect the remaining inner portion of the  blades leading edge and can be pulled off and replaced if it does sustain  damage.  

  

 The only other issue with flying in rain is wearing  the painted finish off the back side of the blade.  We use a flat black  lacquer paint for the factory finish which will take some time to wear through  but you may start to see the carbon fabric pattern showing through over  time.  You can re-apply the flat black lacquer paint if needed, however,  you must take care in giving the blades an even coat or else you can throw the  balance off.  If you get to that point please let us know and we can give  more details on this. 

  

 Regards

 Svein

 LN-SKJ 

[quote]



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