Excelleron ST'd

[Randy]

Tiger Shark 120 is in the priority mail.  APC 15x8 break-in prop is awaiting it.  It looks like is going to warm up here it the next few days.  Maybe I will get out to the field to break in and test fly the Excelleron90 with the Tiger Shark 120.

Probably lose many extremities in the process.  Great fun.

Randy
  ----- Original Message ----- 
  From: Dean Pappas 
  To: discussion at nsrca.org 
  Sent: Monday, December 20, 2004 4:16 PM
  Subject: RE: Excelleron ST'd


  Ah,  Winter-time flying, the clear air, the extra performance, the clink-clink of frozen ... extremities hitting the ground.
  Yes, I have snow shovelled the runway. I was younger, then.
  Regards,

  Dean Pappas 
  Sr. Design Engineer 
  Kodeos Communications 
  111 Corporate Blvd. 
  South Plainfield, N.J. 07080 
  (908) 222-7817 phone 
  (908) 222-2392 fax 
  d.pappas at kodeos.com 

    -----Original Message-----
    From: discussion-request at nsrca.org [mailto:discussion-request at nsrca.org]On Behalf Of Ron Van Putte
    Sent: Monday, December 20, 2004 4:03 PM
    To: discussion at nsrca.org
    Subject: Re: Excelleron ST'd





    On Dec 20, 2004, at 2:50 PM, Ed Miller wrote: 


      Hmm, Dean, will you be out in the snow and cold today flight testing ??? VBG, OK it's cold as you know what here in Tn too !!! 


    Stay inside. It's even cold down here in Florida. I almost froze my.....er..... extremities off this morning. 


    Ron Van Putte 


      ----- Original Message ----- 
      From: Dean Pappas 
      To: discussion at nsrca.org 
      Sent: Monday, December 20, 2004 3:39 PM 
      Subject: RE: Excelleron ST'd 


      Funny you should mention that, Randy ... 
      I am in the process of flight trimming the Excelleron for a review in Model Aviation. The whole goal of the review is to put together a cost-effective and non-intimidating package, to allow a Sport flyer to 1) feel what a groovy, well set-up airplane feels like; and 2) have  a competitive mount for the first couple of seasons of Pattern practice and or competition. I am presently trimming the plane, and for the purposes of the review, that amounts to a baby course in trimming. The kit includes a soft mount, which the instructions warn may not be sufficient for a 120 four-stroke, but looked perfectly adequate for a 120 two-stroke, to me. As it turns out, it works great with a Magnum 120 two-stroke. Right now, I am working with the Magnum factory to get the engine just right: the carb was originally sized for higher RPM, and the fuel draw was not right. The factory have been incredibly cooperative, and if the engine with revised carb runs like it does with the OS7M (yes the OS FSR 60 carb)  then we have a $150 solution that allowed me to fly the FAI schedules with plenty of horsepower, just yesterday. 
      A good running 120 two-stroke is a great solution for the Excelleron, turning a 15-10 APC, in the mid eights, with the stock muffler. Short of convincing a newbie to put the right glow-plug in the engine, we can eliminate the engine related learning curve. Mine is about 8-3/4 lbs. Oh yeah, all this on 10% fuel. I'm sure that a Tiger 23 would be a good choice, too. The 31 ounce Magnum did not make the plane too nose-heavy. 
      Later, 
      Dean Pappas 
      Sr. Design Engineer 
      Kodeos Communications 
      111 Corporate Blvd. 
      South Plainfield, N.J. 07080 
      (908) 222-7817 phone 
      (908) 222-2392 fax 
      d.pappas at kodeos.com 
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