Illowa Sport Flyers Home Page



These are " horizontal stabilizer reinforcements"!  These may help hold the tail together should the AN 4 bolt ever break.  These are CNC cut and made from Stainless steel. They will bolt right on and are an exact fit for the front and rear..  As you can see in the picture you may have to relocate your Dorsal fin bracket down an inch.  I recommend these on older high time airframes.  The Challenger is a solid aircraft but AN bolts can, over time break due to being over-tightened.  This will not show up on a pre flight or an annual condition insp.  This is 1 modification that may save your life!      I will be selling them at $20 a pair, that will include shipping!  Get your order in as soon as you can and I will get a set sent off to you.   Cash works but I can take a check for the amount.  just make your check out to Jim Robinson. 

We have installed several sets on Challengers, both single and the 2 place, here at Erie Airpark.    Fly safe!  Jim Robinson. 

ChI CWS ready to fly, LSA legal 8 grand! 

ChI CWS, less engine painted yellow.  this could make a good UL.  4 grand.

Contact me if you want to get started flying and I will help you get more info.  Jim.

 Challenger Ultralight

Sold but call for availability.

We have the factory owned Challenger Ultralight here at Erie Airpark and it is for sale! 23 hp Hirth and 103 legal.

Call Jim at the Airpark or Dave at Challenger Factory. Fly it home for $14,000. and no FAA.

Challenger Ultralight
  • 31.5 ft wingspan
  • Great on floats and for soaring
  • 265 lb. payload
  • Up to 1,000 fpm climb
  • 25 mph cross-wind capability
  • 55-80 mph cruise speed
  • Qualifies for Part 103 with Hirth F-33 or ...
  • 51% kit for Experimental - Amateur-Built
  • Can be flown with Sport Pilot Permit
  • Qualifies as Light Sport Aircraft
  • Quick-build kits from $9,215 to $12,965 ex engine/prop
  • Power packs for Hirth F-33, Rotax 447/503/582, HKS 700E
  • Available via sub-kits - start with a tail for about a grand!
  • Order Info Pack for details!


    Robinson Roaster Aircraft heater for Rotax© engines. We have them at the airpark and we will ship one out for you. Comes with instructions. $30.00 + $5.00 S&H.


    We hope to have these available someday.

    Not that easy to make.



    Looking for something?  Maybe I could help you find it. Call or e-mail me and I'll see what I can do to help.

    e-mail Jim today






    Carmen Whitehead stopped in to show a new Challenger model he made.




    Contact Jim if you want one.