J1 Przasniczka , [SKK] , 172

**Jan Kytop** · #1 01-19-2014, 04:58 AM

The J1 " Przasniczka " or " Don Quixote " of the polish engineer Janowski is an important device in the recent history of aviation because it is the source of a whole and successfull line of ultralights (currently J5 , J6 and drone Herti used in Afghanistan) .
The J1 , star of a film, amazing photos:
Wysokie loty - The Internet Movie Plane Database
The model is a printed booklet of SZK and it is at 1/33 scale so I scan it and then reduce it to 1/ 72. It is a very small plane in1/72 and there is a lot of parts ( fifty for the engine , for example) .
I have made an enormous and stupid error during the assembly but when I have noticed it , it was too late to correct it without destroying the model , so I have to live with it.
Guess what it is...

**MoffKalast** · #2 01-19-2014, 05:08 AM

HOW does everyone manage to make tiny stuff so accurate? I totaly fail at that!

**strk** · #3 01-19-2014, 05:16 AM

Head magnifier?

Congratulations Jan, this is brilliant build. Precise and clean work.

**OSTOJA** · #4 01-19-2014, 07:09 AM

Beautiful work, congratulations Jan.

I also have this plane to my account:
J-1 Prząśniczka (Weaver or next name Don Quixote) homebuilt plane (1970)

**Jan Kytop** · #5 01-19-2014, 08:41 AM

Quote:

Originally Posted by OSTOJA

Beautiful work, congratulations Jan.

I also have this plane to my account:
J-1 Prząśniczka (Weaver or next name Don Quixote) homebuilt plane (1970)

Thank you Ostoja.
Your post and your step by step pictures report was very useful during the assembly of my model and a real motivation for me and I cannot thank you enough for this.

**Leif Ohlsson** · #6 01-19-2014, 09:27 AM

Thank you for making me aware of this model (and the pleasure of watching your fine build). 50 parts for the engine sounds like a subject for enlarging, rather than shrinking, but each to his or her own...

Your enormously stupid mistake? I don't know, even after looking carefully. Even before looking at the photos I was guessing at wrong rotation of the prop. Can't say if that's so. But the prop would work fine, if the engine rotates clockwise as seen from the rear.

- Leif

PS. ... but judging from Ostoja's build, it seem the engine direction of rotation is anti-clockwise as seen from the rear. Does that constitute "the enormity of your stupidity"? - Small potatoes, I'd say...

PPS. Suspicion confirmed by this drawing:

**Jan Kytop** · #7 01-19-2014, 10:50 AM

Quote:

Originally Posted by Leif Ohlsson

Thank you for making me aware of this model (and the pleasure of watching your fine build). 50 parts for the engine sounds like a subject for enlarging, rather than shrinking, but each to his or her own...

Your enormously stupid mistake? I don't know, even after looking carefully. Even before looking at the photos I was guessing at wrong rotation of the prop. Can't say if that's so. But the prop would work fine, if the engine rotates clockwise as seen from the rear.

- Leif

PS. ... but judging from Ostoja's build, it seem the engine direction of rotation is anti-clockwise as seen from the rear. Does that constitute "the enormity of your stupidity"? - Small potatoes, I'd say...

PPS. Suspicion confirmed by this drawing:

Well , I put the right wing at the left and the left wing at the right

**Leif Ohlsson** · #8 01-19-2014, 03:45 PM

Ah, of course. Serves me right for trying to be clever...

Separate wing tip parts, I see. Otherwise you wouldn't have made that mistake.

Very good work on the model, and a wonderful original aircraft, I'd say. I have been trying to locate a British model aircraft from the end of the 50's, which I started to believe might have been the inspiration for this, slightly later, full-size aircraft. Can't find it at the moment. Not Veron, not Keil Kraft. What make could it be, I wonder...

Leif