Mammoth native and professional stuntman, bungee jumper, skydiver, base jumper and jet pack tester, Troy Hartman, gets busy with a jet pack on skis. Shot on location at the Sierra Meadows Ranch in the Mammoth lakes area, he says this about the video you are about to see via facebook; “50% throttle yielded a speed of 47 mph. A second set of test runs demonstrated ascents of black diamond rated slopes.” More to come is expected on his website troyhartman.com. Enjoy and who knows, maybe someday we’ll all be zipping around ski towns with these things on?!