I saw some model IS-3M had a coiled pipe on the top of external fuel tank.I had ever seen some real external fuel tank's photos of IS-3M,The outlet of external fuel tank is at the bottom.So,I want to know that is there any fuel pipes on real IS-3M's external fuel tanks?

Any help will be appreciated! especially for Pics.

^_^

Yes, they have thin air hoses on top of the fuel tank. These were used to recharge the compressed air engine starting bottles in the front of the tank.
Here are some links to surviving IS-3s (ignore the one in Aberdeen because the engine deck is from a T-62 if I remember correctly) and some photos of my IS-3m model for reference:

http://the.shadock.free.fr/Surviving_IS3.pdf

http://www.toadmanstankpictures.com/is.htm













Hope this helps

Cesar - that is a spectacular IS-3. I love it.

- Steve

Cesar,you are so kind man and your IS-3m is so nice.Surviving_IS3.pdf
is great. Thank you,and thanks for your nice pictures.

This IS-3m is from Egypt isn't it?