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Hi, Ryan PT-22 Recruit was a basic trainer in late 1930s and early 1940s in US. There were few kits of this machine produced in 1/72 ( https://www.scalemates.com/kits/special-hobby-sh72064-ryan-pt-22-recruit--103722/timeline ). As we can learn from above link one of them is a originally MPM kit of Ryan PT-20 from 1999, then re-issued with new resin parts to get PT-22 by Special Hobby in 2004. However this model was not flow-free - for example it was a subject of critics due to all wrong shapes of u/c. I had this kit waiting in stash from perhaps 2006 (bought already at a second hand market). If you look into box you could find a complete kit of PT-20 and a lot of resin parts including new tail, engine, front of fuselage , propeller and this mentioned wrong shaped u/c... The idea came to me (already when I got it), that if I would copy in resin only few parts (the basic one, thought) like wings and fuselage I can multiply this single kit into two: the PT-20 (STM) and PT-22. Moreover, the PT-22 existed in two variants: with straight and swept wings so to make the model even more distinguishable next idea came to me - to do the swept wing PT-22a and STM. Finally, after waiting some 16 years (!) I copied the wings and fuselage as well as cockpit floor and instrument desks. I used a general use silicone from a cartridge and then a Distal Classic resin glue as resin. Here are the forms - for wings (the roll of tape is just to keep it open): and for one of fuselage half: The copied elements has a lot of quality issues, so a lot of additions had to be sanded out and a lot of voids needed to be filled up with filler. I cut the wing into two pieces and made it glued with swept. In the top of picture you can see the original wing. Similar with fuselage. Here is opposite, on top one can see all resin fuselage for PT-22 (front from box, the main part from my resin casting, I made a late style u/c with all fairing removed, so the bare steel tubing left. I made them from o 0.7 mm diameter injection needles. I made a shaft for prop from a brass rode (1.2 mm diameter) and prop bearing from a brass tube of external diameter 2 mm. Rigging by EZ. Decals from drawer. Here is the results: And two more shots showing prop rotating The STM should come here soon... Comments welcome Regards Jerzy-Wojtek P.S. This is mine #22/2022

About 15 years ago I wrote a book about mold making and resin casting which was based on my apprenticeship with a master mold maker and from experiences I had while operating a resin model kit manufacturing company back in the 1990s (Wingnut International). The book was self published and rather hard to get, being a completely "in house" operation--I printed, bound and sold the book directly to my customers. It was a modest success but as is the nature with many books, sales gradually dwindled until it was no longer worth my time and effort to keep it in print. The book attained sort of a legendary status and there have been inquiries from time to time about the possibility of reviving it. This wasn't an easy thing to do because the ancient software used to make the book was incompatible with more modern hardware and operating systems. Then about a year ago, after being lobbied hard for the rights to the book by someone active in the how-to publishing field, I decided to take another look at the feasibility of bringing it back into print. I did a literature search and discovered that no book published since has gone into the detail mine does, so I began to think that maybe it would be worth the effort to revive it for the 21st Century. I've spent the last year updating the book and working with an editor to improve it and make it compatible with modern distribution channels. The book is now professionally printed and bound and available on CreateSpace.com, a division of Amazon.com The book is also now available on Amazon and Amazon UK. Copy and paste Secrets of Expert Mold Making & Resin Casting into the Amazon search window and it will take you right to the listing. If 2 listings show up, go to the one with the blue/green cover--the white cover is for the old edition and is no longer available. I have been trying to get Amazon to remove the old listing, but no luck yet. Sorry for any confusion.