Magazine content is available exclusively for TIME subscribers.Science: Tacan Unveiled
The Air Navigation Development Board last week took the technical wraps off the controversial Tacan (Tactical Air Navigation), electronic distance-direction guide for aircraft. Backed by the Navy and Air Force as a replacement for the Omni-DME (Omnirange and Distance Measuring Equipment) system adopted by the Civil Aeronautics Administration in 1948, Tacan stirred up a storm in the flying industry (TIME, May 30), but it will probably become the system for all U.S. aircraft.
In essence, Tacan and Omni-DME are much alike, but though Tacan and DME use the same ultra-high-frequency radio band (960-1215), they cannot be read on the same instruments. Both...
Email, Password or Region is incorrect
A required form parameter was missing.
The System is currently down. Please try again in a few minutes.
Email Address is invalid
Password is blank
Most Popular »
- Why American Kids Are Brats
- Whitney Houston, Superstar of Records, Films, Dies at 48
- Watch: Dan Savage Leaves Stephen Speechless on 'Colbert Report'
- Androgynous Model Andrej Pejic Pushes the Fashion World's Limits
- 'Anonymous' Knocks CIA Site Offline
- It's Official: Linsanity Is for Real
- Kate Middleton's Amazing Fashion Evolution
- 10 Things We (Still) Kinda Hate About The Phantom Menace
- Desperately Seeking Susan Powell: A Best Friend's Quest
- Beyonce and Jay-Z Debut Blue Ivy Carter Online
- The Upside Of Being An Introvert (And Why Extroverts Are Overrated)
- Why Is Your Boss Moving to Brazil?
- Friends With Benefits
- Desperately Seeking Susan Powell: A Best Friend's Quest
- Jailed Polygamist Warren Jeffs Prepares His Flock for Doomsday
- Harvard's Hoops Star Is Asian. Why's That a Problem?
- Halftime and Hyperbole
- New York City: 10 Things to Do
- DEA: Mexican Gov. Got Millions in Drug Cash
- Eat like an Italian
More News from Our Partners
Top Stories on TIME.com
Quotes of the Day »
