No view thru Prop on downloaded and install planes

I have download a few plane and after install and run that plane in FSX you cannot see thru prop, it is ether totally backout or whiteout. Any idea's as to this issue.
Thank You
Teesix

There's a bug in FSX that causes that (actually in SP2) but some of the newer aircraft have props that look like props not like buzz saws.
Pay aircraft made for SP2 will be fine but it's hard to say which free have that.
If you read the description it will tell you if it's fixed.

Don't get rid of SP2, it has the code that uses all cores of your CPU, FSX will only use 1 core if you don't have SP2.