Some parts doesn't want to print

Hi!
I found a 3d model of a rafale, and I want to print it but there is a problem: the cockpit and the noze doesn't want to print.
When I import the model on the FlashPrint software (I've got the FlashForge Finder 3d printer), the plane displays correctly like this:
http://i.imgur.com/yVfSMaF.png
But when I convert the file into Gcode, it looks like this:
http://i.imgur.com/EcHunyB.png
I also tried with Slic3r, but I've got the same problem.

(Ok, I can't upload my file......) So here is my file: https://drive.google.com/file/d/0BwP...ew?usp=sharing

Where is the problem? From the file? My print settings? (I use the default print settings)
PS: Sorry for my bad English, I'm French

Hey,

I checked the file. It had some 3D printing errors. I fixed it using https://makeprintable.com/. The size is different, so if you want to resize to the original size. You should be able to print it now. Here is the fixed file: https://drive.google.com/file/d/0B-7...ew?usp=sharing

Let me know if it works out.

Yes! It works!
Thank you so much!

Use netfab, makeprintable takes too long and they literally spam you to hell to use it, not sure why they are so pushy.

Netfab, free, fast and works better
https://netfabb.azurewebsites.net/