Sorry Dennis AND Wes. I visit here on a smart phone, so I sometimes slip a bit as I slide up and down a thread.
Mr. Wes,
That is an amazing story! I always loved the plane. I still remember being about 10 years old, sitting on the floor of the Children's section of the local library reading the very same book. Doesn't it also have the F-82 Mustang log plans/model too? I seem to remember so.
When I returned to the hobby back in 2015, I discovered BHM and DCP Models by contacting a YouTube poster about her Sterling P-38. We talked for an hour or so shortly there-after. Then I discovered Outerzone, HPA, and AeroFred.
While visiting the BHM website, I was still in "restore childhood Cox engine, fit to simple kit" mode. I had an agenda to try to bring my boys in. But there was that Red and White Challenger! I didn't know at the time that Scientific once existed, nor that it wasn't a direct copy of the larger plane. But I was hooked, and swore to myself that if I ever moved up from my little engines, then I wanted that kit. I did buy three 1/2A kits by BHM. By the time I was ready to purchase the Challenger, BHM had sold, then closed. Aaargh!
Then Dalton Hammett offered his for sale. Oh boy, I had another crack at getting the kit!
Since then, I also discovered my love of plans. With the three big plans sharing sites above, I found another side-hobby that takes up practically zero space...collecting plans. So I started by pulling down plans. I initially grabbed ones I hoped to build. Then I learned how to scan plans in sections and digitally stitch them together into one PDF. And then as part of giving back, I started handing submissions to OZ.
The Challenger was my first successful set, complete with parts tracings from the BHM kit. While the parts and scan are accurate 1:1 copies, the plan did have a bit of wavyness on the stitched seams...certainly good enough to build from! I couldn't stand the idea that once a kit was built, the plans are trash. While tracing parts and scanning them is easy, the effort to fold a plan into small tiles with 20% overlap (best/largest sections for me, my scanner and stitching software) was too time-consuming to apply to every kit I had.
I think I completed the Challenger set about 18 months ago. I did note that the BHM plan looks to be a Scientific plan that was copied with the BHM contact info over the Scientific branding in the lower right corner.
I changed jobs in early 2020 and found that the place had a plotter and wide-format scanner. Now I had all the tools I needed for scratch building and copying big plans. Last week I scanned the BHM Challenger as one full size sheet. Wow, that was easy! That latest, much better scan complete with parts will be submitted to OZ this weekend. Mr. Dalton has since sent six or eight plans for me to scan, along with a Veco Tom Tom clone kit. The Tom Tom was toughest, as the paper is old and sepia-toned. They were all done over Christmas-break, and will also go to OZ.
I need to learn AutoCad so I can start scanning the woods, and digitally tracing the parts. Then I need to learn how to use a gifted CNC milling machine. But all that is another thread.
Thanks guys for keeping this wonderful hobby going!