[NSRCA-discussion] Partner set-up question

Thu Oct 19 15:24:21 AKDT 2006

Thanks for the reply Tom. I share your sentiments regarding the Lazulite. I really like the appearance of the Lazulite and a couple of years ago at the Nats Kenny Lauter had one and flew it in practice and quickly put it away and competed with his second airplane.I never did know the reason for his actions, might have been a trimming problem or whatever, but I sure thought it was a beauty.
Zero-zero scares me a little as I built one that way once and it flew badly.I struggled with it a long time and after doing numerous re-setups I finally changed the main
wing incidence and got it to fly acceptably.
Keep us posted as regards the outcome of both experiences. Like you, I have dabbled in a few of my own designs and am always interested in the empiricle results of others. 
Georgie

  ----- Original Message ----- 
  From: Koenig, Tom 
  To: NSRCA Mailing List 
  Sent: Wednesday, October 18, 2006 6:15 PM
  Subject: Re: [NSRCA-discussion] Partner set-up question

  George,

  I really couldn't tell you- I still need to (finish) building them!!

  However, I was hoping that some of you boys in the US might have an answer to that? But I gather that the ratio of Partners to Lazulites is quite high in the US?

  I always wondered why there are relatively few Lazulites flying in the US. The Lazulite has a few differences, enough I guess for a selection of pilots. The wing sections are the same, but differ in percentages etc.

  George-as far as my expectations are concerned regarding pitch values, I'd expect them both to be about the same. As a rule of thumb, I would have thought the stab which is lower to pitch less-but there are enough differences in stab/wing and fuselage for it to perhaps be the same, i.e.: trimmable with a bit of incidence work.

  Incidentally-the marks on either fuselage suggest 0-0 wing stab???? I'd have to draw the fuselages up to see rigging angles.

  Tom
   -----Original Message-----
  From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of george w. kennie
  Sent: Wednesday, 18 October 2006 12:19 PM
  To: NSRCA Mailing List
  Subject: Re: [NSRCA-discussion] Partner set-up question

    Hey Tom,
    What are the differences in the mix values between these two models? Particularly pitch values. Your opinion please.
    Geo.

      ----- Original Message ----- 
      From: Koenig, Tom 
      To: NSRCA Mailing List 
      Sent: Tuesday, October 17, 2006 6:16 PM
      Subject: Re: [NSRCA-discussion] Partner set-up question

      Hello Claude and all,

      These are the measurements I came up with. Please-if anyone has other data it would be interesting to compare. First up nothing earth shattering as far as the numbers are concerned. Quite standard actually.

      Partner

      With reference to the canopy floor.

      Datum line/spinner center    56 mm below canopy line
      wing center                        92 mm below canopy line( or 36 mm below datum line)
      stab center                        63 mm below canopy line( or 7 mm below datum line)

      Lazulite

      With reference to the canopy floor.

      Datum line/spinner center    56 mm below canopy line
      wing center                        90 mm below canopy line( or 34 mm below datum line)
      stab center                       57 mm below canopy line( or 1 mm below datum line)

      I presume that with the stab center on the Lazulite, I may have made an error in measurement and that the stab is actually located ON the datum line( it was getting late!)

      The models are actually very similar, with a bit of coaxing the Lazulite Canopy will fit on a Partner and vice versa.

      I have not compared 1/4 chord to 1/4 chord moments-but if these are wanted I'll measure that up as well.

      The Lazulite was disgustingly close ( by millimeters) to my own Merlin design.I'm still kicking myself for the cash that was 'burnt'.

      Hope it is of help.

      Tom

        -----Original Message-----
        From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Claude Weimer
        Sent: Tuesday, 17 October 2006 8:52 AM
        To: 'NSRCA Mailing List'
        Subject: Re: [NSRCA-discussion] Partner set-up question

        Tom,

        No one else has responded.  I would really appreciate if you could give me the information. I can deal with metrics if that's what you use. 

        Thanks, Claude

------------------------------------------------------------------------

        From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Koenig, Tom
        Sent: Monday, October 16, 2006 4:20 PM
        To: NSRCA Mailing List
        Subject: Re: [NSRCA-discussion] Partner set-up question

        Claude,

        Have you had any answers yet?

        If not-I'll measure up my unbuilt one and see what the numbers are. I hope they will make sense with the results from others?

        Tom

        -----Original Message-----
        From: nsrca-discussion-bounces at lists.nsrca.org [mailto:nsrca-discussion-bounces at lists.nsrca.org]On Behalf Of Claude Weimer
        Sent: Monday, 16 October 2006 12:53 PM
        To: nsrca-discussion at lists.nsrca.org
        Subject: [NSRCA-discussion] Partner setup question

        Can some one tell me the distance below the engine thrust line to the centerline of the wing on the Partner? And I would also like to know the distance above the wing centerline to the center of the horizontal stab. Thanks, Claude. 

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