கேள்வி: பெல் எக்சு-1 - வெளியிணைப்புகள் பற்றி விளக்கவும்.
பதில்: * [http://www.nasm.edu/galleries/gal100/bellX1.html Bell X-1 Milestones of Flight] * [http://history.nasa.gov/x1/ NASA's History of the X-1] * [http://history.nasa.gov/x1/goodlin.html Goodlin's NASA biography] * [http://history.nasa.gov/monograph31.pdf ''American X-Vehicles: An Inventory X-1 to X-50'', SP-2000-4531 - June 2003; NASA online PDF Monograph] * [http://www.flickr.com/photos/zippy/9754284/ Photo of Glamorous Glennis on display] at the National Air and Space Museum in Washington, DC. * [http://chuckyeager.com/home.htm Yeager's personal website] * [http://sites.google.com/site/rgoddardsite/ Robert H Goddard--America's Rocket Pioneer] * [http://www.ipmsstockholm.org/magazine/2001/11/stuff_eng_bell_x1_part1.htm Modeller's Guide to Bell X-1 Experimental Aircraft Part one] * [http://www.ipmsstockholm.org/magazine/2001/11/stuff_eng_bell_x1_part2.htm Modeller's Guide to Bell X-1 Experimental Aircraft Part two] * [http://books.google.com/books?id=QCgDAAAAMBAJ&pg=PA97&dq=popular+science+1930&hl=en&ei=AnvcTt6DBMePgwfR96XpDA&sa=X&oi=book_result&ct=result&resnum=10&ved=0CFYQ6AEwCThu#v=onepage&q&f=true "X-1 is Carried Aloft; Cockpit of the Bell X-1."] ''Popular Science'', August 1948, p.&nbsp;97. பகுப்பு:சோதனை வானூர்தி பகுப்பு:அமெரிக்கக் கண்டுபிடிப்புகள்