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Setting up the prop

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andynfultz(at)bellsouth.n
Guest

Posted: Sat Jul 12, 2008 6:20 pm Post subject: Setting up the prop

Well,,  my STRATUS EA-81 engine is now on the airframe and running.  I'll

be installing a 72" WarpDrive prop with tapered tips.  I'm looking for

suggestions for a starting point to set the prop pitch.  AT what reference

point are your settings suggested?  I think I'll start with max recommended

static RPM and I'll worry about increasing the pitch for a better cruise

later.  Thanks in advance.



Andy F.

AVID Flyer w/Extended Speedwings

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larry(at)macsmachine.com
Guest

Posted: Sun Jul 13, 2008 5:41 am Post subject: Setting up the prop

Hi Andy,

I'd recommend you start with the 15-degree pitch to keep your engine 

loading light until you've cleared the

40-hour fly-off. Then go to 16, 16-1/2-degrees.  When you're comfortable 

with the handling for take off and

landings, and you've got the runway for it, 17-degrees is good for 

cruising, but not a short runway..

This all presumes a bit on wing loading, but 15 is a good place to start.



Larry McFarland 601HDS at www.macsmachine.com



Andy Fultz wrote:

 	  Quote: 	
		   

   Well,,  my STRATUS EA-81 engine is now on the airframe and running.  I'll

 be installing a 72" WarpDrive prop with tapered tips.  I'm looking for

 suggestions for a starting point to set the prop pitch.  AT what reference

 point are your settings suggested?  I think I'll start with max recommended

 static RPM and I'll worry about increasing the pitch for a better cruise

 later.  Thanks in advance.



 Andy F.

 AVID Flyer w/Extended Speedwings

- The Matronics Stratus-List Email Forum -

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andynfultz(at)bellsouth.n
Guest

Posted: Sun Jul 13, 2008 6:03 am Post subject: Setting up the prop

Thanks for the response, Larry.  Is that measured at the tip or some other

location along the blade?



Andy F.



--

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gkrysztopik(at)satx.rr.co
Guest

Posted: Sun Jul 13, 2008 6:05 am Post subject: Setting up the prop

I have a Pelican and I've used 12 to 17 degrees.  14 to 16 give best 

performance and I've left it at 16 for the past couple years.  12 would 

allow rpm's past redline WOT in level flight and 16 won't get me to 

redline WOT but it runs cooler and performance is fine.  I have square 

tips, 72".  I think static at 16 is 4600 or so which is way below what 

would be recommended for static but as long as you have a long runway 

and set an abort point just in case then I wouldn't worry about a 4600 

rpm (I think people would usually shoot for a couple hundred rpm below 

redline to make sure max power is available).



How much does your Avid weigh?  Speed wing or standard?  I'm sure you'll 

be happy with it, I'm still loving my Pelican with the Stratus every flight.



gary



Andy Fultz wrote:

 	  Quote: 	
		   

   Well,,  my STRATUS EA-81 engine is now on the airframe and running.  I'll

 be installing a 72" WarpDrive prop with tapered tips.  I'm looking for

 suggestions for a starting point to set the prop pitch.  AT what reference

 point are your settings suggested?  I think I'll start with max recommended

 static RPM and I'll worry about increasing the pitch for a better cruise

 later.  Thanks in advance.



 Andy F.

 AVID Flyer w/Extended Speedwings

   


	


-- 

Gary Krysztopik

www.ZWheelz.com

San Antonio, TX

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andynfultz(at)bellsouth.n
Guest

Posted: Sun Jul 13, 2008 6:18 am Post subject: Setting up the prop

Hello Gary,



  I'm in the process of doing final paint and assembly now so I haven't done

the weight and balance yet. Don't know for sure what the completed weight

will be.  I do know it won't be one of the lightest though.



Andy F.



--

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larry(at)macsmachine.com
Guest

Posted: Sun Jul 13, 2008 9:51 am Post subject: Setting up the prop

Andy,

I put the prop horizontal and use the warp drive pitch gage at the tip 

of the blade.

It's very accurate.



Larry McFarland 601HDS at www.macsmachine.com



Andy Fultz wrote:

[quote] 



 Thanks for the response, Larry.  Is that measured at the tip or some other

 location along the blade?



 Andy F.



 --

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larry(at)macsmachine.com
Guest

Posted: Sun Jul 13, 2008 9:52 am Post subject: Setting up the prop

Andy,

I put the prop blade horizontal and use the warp drive pitch gage at the 

very tip.

It's very accurate.



Larry McFarland 601HDS at www.macsmachine.com



Andy Fultz wrote:

[quote] 



 Thanks for the response, Larry.  Is that measured at the tip or some other

 location along the blade?



 Andy F.



 --

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gkrysztopik(at)satx.rr.co
Guest

Posted: Sun Jul 13, 2008 10:18 am Post subject: Setting up the prop

and I use a level on the bade to make sure it's horizontal and of course 

you need to start with the plane leveled.



gary



LarryMcFarland wrote:

[quote] 

 <larry(at)macsmachine.com>



 Andy,

 I put the prop blade horizontal and use the warp drive pitch gage at 

 the very tip.

 It's very accurate.



 Larry McFarland 601HDS at www.macsmachine.com



 Andy Fultz wrote:

> 

> <andynfultz(at)bellsouth.net>

>

> Thanks for the response, Larry.  Is that measured at the tip or some 

> other

> location along the blade?

>

> Andy F.

>

> --

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andynfultz(at)bellsouth.n
Guest

Posted: Sun Jul 13, 2008 8:47 pm Post subject: Setting up the prop

Larry and Gray,



  Thanks to the both of you for your input.  I put the prop on today and set

it at 15 degrees for starts.  I did use a level to make sure each blade was

level horizontally and then set the pitch on each blade.  I rechecked as I

tightened and only had one move a little.  I readjusted it.  Checked the

tracking and one blade is out about 1/8" and one is out about 1/4" inch.  I

would like to have seen them a little closer on the tracking.  I didn't have

it tied down so I didn't run it over about 2200 RPM.  I feel a littel

vibration but not as bad as some I've been in.  Then I spent most of the

afternoon tying up the rats nest behind the panel.  I just might actually

fly this thing before the end of the summer if I'm lucky.  Thanks again

guys.



Andy F.



--

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