Hoyt A. Stearns Jr.: Some Historical photos I took.
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I befriended Dr. Bruno Nagler when he watched me learning to fly my
single seat Scorpion helicopter without instruction.
He was a helicopter pioneer, and was actively promoting the concept of
the torqueless helicopter, where the blades are powered
by compressed air blowing out the blade tips. Those types of
helicopters are very much simpler and safer than conventional
(see the video linked below). A while after he died in 1979,
seeing no further activities in the field, I worked to continue his
resulting in two US patents (4,702,437, 4,720.059 ).
first was to improve the efficiency of the concept by putting
cross flow fans inside the blades. The second was a way,
offset flapping hub to obtain much higher speeds by unloading the
using the moment on the hub to offset the lift differential between the
advancing and retreating blades.
Mosquito ultralight helicopter web site
Historical photos I took of Bruno Nagler and prototypes etc. at Nagler
Aircraft Co., at the end of this page, B.J.Schramm, Phoenix,
Arizona about 1974.
Bruno Nagler & Employee in front of the Spur Cross mine, Cave
Creek Arizona US
A promotional brochure for the
"Phoenix Air Jet helicopter"
pressure jet helicopter promotional video
with incomplete prototype
hovering Nagler prototype
pilot hovering Nagler prototype
prototype instrument panel
VG1 (Piper Pacer fuselage)
with body mockups in Nagler prototype
turbine test stand
Nagler & Employee with prototype
Vertigyro VG1 rotor head
Test pilot flying
Bruno Nagler at my house I was
just moving in to.
Bruno Nagler around Spur
Cross Mine, Cave Creek, Arizona
A Nagler prototype
The main investor in Nagler
Nagler's turbine test stand
B.J.Schramm next to his
"Scorpion Too" helicopter
Hoyt Stearns flying
Scorpion 1 around Falcon Field, Mesa Arizona US