Arma hobby PZL P.7A in 1/72

[fastmongrel]

I have used a stretched sprue for both my old P-11c and P-7.

I used brass wire because I wanted to strengthen the legs. I would have used thread or stretched sprue normally. The Arma plastic is very soft and prone to breaking.

 

[Wurger]

Copied that.

 

[fastmongrel]

I have ordered the correct Kahki drab paint. I was going to mix up my own but decided I like this little bird so much I want only the best.

 

[Wurger]

Which one have you chosen?

 

[Crimea_River]

Nice work.

 

[fastmongrel]

Which one have you chosen?

I have ordered Vallejo 71.139 (FS30118) US Field Drab Kahki the instructions list a Hataka code but its not easily available in the UK in single bottles only in sets.

 

[Wurger]

OK.

 

[rochie]

Looks great.
another type i wouldn't mind having in 1/48 scale

 

[Crimea_River]

ARMA just released one Karl. PZL P.11c, Arma Hobby 40001 (2021)

 

[fubar57]

She put up a fight but it looks like you won

 

[fastmongrel]

Not too happy with the propeller. As far as I can find it should be 2.85meters (9' 4") but I measure it as 2.56meters (8' 5").

 

[Wurger]

Sorry for the dalay. As memo serves the P-7 had the propeller of 2.8m in diameter. So the 9'4" sounds good. In scale 1/72 the diameter should be about 3.8-3.9 cm (38mm-39mm) including the spinner diameter at the piont where the prop blades were attached . I'm not sure how you got the 2.56m but if you measured the prop blades of the model without the diameter of the spinner , you could have gotten the incorrect measurement.

 

[fastmongrel]

Sorry for the dalay. As memo serves the P-7 had the propeller of 2.8m in diameter. So the 9'4" sounds good. In scale 1/72 the diameter should be about 3.8-3.9 cm (38mm-39mm) including the spinner diameter at the piont where the prop blades were attached . I'm not sure how you got the 2.56m but if you measured the prop blades of the model without the diameter of the spinner , you could have gotten the incorrect measurement.

I have a 1/72 scale ruler with imperial and metric. I measured tip to tip after I had assembled the prop and quickly spotted it was a bit stumpy. If it was only a few scale centimetres short I could have lived with it but nearly 30cm is not acceptable to me.

 

[Wurger]

I have had a quick view at a couple of finished Arma P-7 OOB models and must say that the diameter seems to be realy incorrect. According to my observation the tip of the prop blade should be almost at the same level the center of the wheel is. Of course the prop is set vertically.

 

[fastmongrel]

A big part of the look of the P7 is the big cowling and big propeller. If I can't find a replacement I might try cutting the blades and adding an extension.

 

[fastmongrel]

Looking at this image the blade tip looks slightly below the wheel center

 

[Wurger]

Here is the next shot of the White 999. Not too best quality but it can be noticed that the tip of the bottom blade is almost at the wheel alloy level although the prop is not set vertically.

the pic source: Województwo lubelskie - zdjęcia

And here is a nice shot with the prop set horizontally. ..

The pic source: Plik:Lotnicy 2 plot na tle samolotu PZL-7 po powrocie z rajdu lotniczego do Rumunii NAC 1-W-1575.jpg – Wikipedia, wolna encyklopedia

 

[Wurger]

Looking at this image the blade tip looks slightly below the wheel center
View attachment 618238

Although that's a profile and I wouldn't trust it fully but it seems to be almost correct.

 

[Gnomey]

Good work so far!

 

[fastmongrel]

I had a good sort through my bits box looking for a replacement prop, thought I had found the right one and it's opposite tractor

Can't find anything suitable online there's any number of later 3 and 4 blade props but not much 2 blade.

I think I might chop the blades and insert a spacer only needs to be 1.5mm. Should be able to hide the joint under plenty of paint.