article_snippet.sent: Fighter pilots flying the deadly F-35 Lightning II jet have very special  secret weapon - a $400,000 helmet that allows Fighter pilots to see through the plane.
article_snippet.sent: High-tech: The F-35 jet's $400,000 helmet (pictured) gives the pilot a 360 degree view around their aircraft and even allows their to see through the pilot frame .
article_snippet.sent: Like the jet - which is estimated to cost around $1.5trillion to develop over the next 50 years - the helmet is incredibly expensive.
article_snippet.sent: Each custom-made piece of high-tech headgear costs nearly half a million dollars, which is reportedly millions over an F-22 Raptor's 1.7 million original budget due to development problems.
article_snippet.sent: The state-of-the-art helmet - which costs $400,000 - give the pilot real-time access to battle space information with 360-degree coverage of their surroundings.