The term pilotless aircraft is identified in base64 scheme by the sequence cGlsb3RsZXNzIGFpcmNyYWZ0, while the MD5 signature is equal to b55e3bcf1e0a8ffb80b8481ed38d5c23. The ASCII encoding of pilotless aircraft in hexadecimal notation is 70696c6f746c657373206169726372616674.