Coast Guard helicopter Demo at the Seattle Maritime Festival, Washington, USA Art Photographic Poster Print by William Sutton 
|
Helicopter - an aircraft that is lifted up and propelled by horizontal rotors. Helicopters are
classified as rotorcraft or rotary wing aircraft, different from fixed wing aircraft. Helicopters get it lift from rotor blades rotating
around a mast.
The advantage the helicopter has over fixed wing is that that they can lift without having to move forward. This way they can take off and land without a runway so can be used in areas where airplanes can't function. Igor Sikorsky designed the first helicopter that entered full-scale production. 131 were produced and were all made with a single main rotor with antitorque tail rotor. The turbo shaft engine was developed in 1951, which gave extra horsepower to the helicopter while allowing it to carry more weight. Two years later the first twin-turbine helicopter was developed. Now with the development of lightweight turboshaft engines, helicopters are larger, faster and higher performance. Smaller helicopters still use the less expensive piston engine. |
There are many jobs that require the special ability of the helicopter in transportation, construction, firefighting, search and rescue, logging and more.Helicopters are used in the military mounted with missile launchers and miniguns to conduct aerial attacks on ground targets. They are also used in transportation of supplies and troops.
Web Counter by TrafficFile.com
|
|
Susan Dietel
Helicopters for Sale. Helicopter information, products, Books, Manuals, DVD's. Bell, Military, Apache, Hog, Blackhawk, Helicopter Kits,
Airwolf, Chinook, Mosquito, Hughes, Mini, and much more. Used Helicopter for Sale.
Web Programmer
Email:
susansdesign@yahoo.com
Helicopter
rc
bell
sale
military
apache
hog
pilot
training
just
ultralight
school
ultra light
blackhawh
picture
navy
kit
helix hog
army
fly
hevy
blade
airwolf
used
deer
sales
airwolf
vario
Chinook
sikorsky
blackhawk
cobra
mosquito
Hughes
schwitzer
enstrom
mini
r44
astro Robinson
boeing
piasecki
brantly
bratuchin
brequet
Cessna
aeroplane
Bristol
Cierva
Columbia
denel
Dornier
enstrom
Erickson
eurocopter
fairey
harbin
hiller
hongdu
karman
kamov
Lockheed
mcdonnell
bolkow
mil
panha
rotocraft
sikorsky
westland
yamaha
Helicopter Manual
