Jeff Lammers

About the Author

Ken Blackburn is an aerospace engineer and four-time Guinness World Record holder for paper airplane time aloft (last record 27.60 seconds). He works for the Air Force doing aeronautical research in Florida.

Jeff Lammers is an engineer and entrepreneur based in Kansas. He flies small planes in his spare time.

By clicking ‘Sign Up,’ I acknowledge that I have read and agree to Hachette Book Group’s Privacy Policy and Terms of Use