US 1971 'Airmail' Silhouette of Jet Airliner 11c. Michel 1029yDr


US 1971 'Airmail' Silhouette of Jet Airliner 11c. Michel 1029yDr


Series: Airmail 1968-1973

Stamp details: Silhouette of Jet Airliner

Issued date: 07-05-1971 (dd/mm/yyyy)
Face value: 11c.

Emission: Air Post
Watermark: No Watermark

Catalogue No:-
Michel (Germany): 1029yDr

Printer: Bureau of Engraving and Printing

Print Method: Rotary press

Stamp Colors: Carmine
Perforation: Perf 11 x 10½
Paper: Phosphor tagging

Themes: Aircraft, Aviation

Note: Imperforate at right.

Description:- A Jet Airliner or Jetliner is an airliner powered by jet engines (passenger jet aircraft). Airliners usually have two or four jet engines; three-engined designs were popular in the 1970s but are less common today. Airliners are commonly classified as either the large wide-body aircraft, medium narrow-body aircraft and smaller regional jet. Most airliners today are powered by jet engines, because they are capable of safely operating at high speeds and generate sufficient thrust to power large-capacity aircraft. The first jetliners, introduced in the 1950s, used the simpler turbojet engine; these were quickly supplanted by designs using turbofans, which are quieter and more fuel-efficient.
Source: en.wikipedia.org/wiki/Jet_airliner