Dear Viewer!

We are proud to present to you a 5^th edition of the catalogue, which is also the first edition written in English.

As a bit of introduction, let us put here a personal note from Mr Ruszkowski:

I came across Mr Leonid's catalogue in 2013. As an all rotorcraft enthusiast, design engineer and certified helicopter mechanic I was really excited to get a big heavy book that covers hundreds of small rotorcraft and helicopters in particular. The only thing I was not happy about when I was reading the catalogue was the language - the edition I purchased was the Polish one. As it turned out in an e-mail correspondence with Leonid, it was translated by another person to Polish (Leonid writes his books in Ukrainian and Russian), but unfortunately it happened to be often incorrect. Once I wrote an e-mail to Leonid: "Hey, why don't you publish your book in English - you then shall get a wider audience". Well… making the long story short, I ended up translating his catalogue. It wasn't and still isn't a commercial endeavour for me - It was part of my hobby in my spare time, so it has taken years to complete. I also focused on passing the technical information in a simple way so no-one speaking English will have problems understanding it. What you are able to see now is a new, refreshed, refined English version of the catalogue which Mr Leonid used to publish for many years now. I guess it will be not a cheap one as it usually was a low volume printed book - but it is like a Bugatti Veyron in the world of books - for those who want specific and rare knowledge put on paper it is worth a lot.

Best regards,
Marcin Ruszkowski