The "T" tail is an aircraft tail configuration which consists in having the horizontal stabilizers in the top of the vertical one. It's name comes from the letter "T" shape it forms.
Design[edit | edit source]
In commercial aircraft, this type of tail is often seen in planes with their engines in the rear body instead of the wings. However, models like BAe-146 break this rule, which is the same applying in the T-tail freighters like C-17 Globemaster III or the IL-76 which all have the wings with engines in the top of the fuselage.
Advantages[edit | edit source]
- Allows the horizontal tail surfaces to remain clear of jet exhaust.
Disadvantages[edit | edit source]
- Due to the elevators' height they're more difficult to reach during maintenance.
- Increased risk of pitch up.
Aircraft[edit | edit source]
Commercial planes[edit | edit source]
- BAC One Eleven
- Boeing 717
- Boeing 727
- Douglas DC-9
- Hawker Siddley Trident
- McDonnell Douglas MD-80
- Tupolev TU-154
- Yakovlev YAK-40
- Yakovlev YAK-42
Regional airliners[edit | edit source]
Cargo planes[edit | edit source]
Business jets[edit | edit source]
Military aircraft[edit | edit source]
Helicopters[edit | edit source]
Trivia[edit | edit source]
- The Boeing 727 is the only major trijet to have this configuration; however, Russian manufacturers Tupolev and Yakovlev continued the design in some of their aircraft, though they didn't become that popular in the rest of the world.
- The Britten Norman Trislander is the only aircraft of this type to have three propellers; the tail one is in the top of the vertical stabilizer.