antenna loading
41F-20 Tigershark — Infobox Aircraft name= F 20 Tigershark caption= F 20 #82 0062 (USAF photo) type= Fighter aircraft national origin = United States manufacturer= Northrop designer= first flight= 30 August 1982 introduced= number built= 5Fact|date=October 2008… …
42Short Sunderland — infobox Aircraft name = Sunderland type = Military flying boat manufacturer = Short Brothers caption = designer = first flight = 16 October 1937 introduced = 1938 retired = 1967 status = primary user = Royal Air Force more users = French Navy… …
43Boeing 737 AEW&C — infobox Aircraft name = Boeing 737 AEW C type = Airborne Early Warning and Control (AEW C) manufacturer = Boeing IDS caption =A Turkish Boeing 737 AEW C designer = first flight = 2004 introduced =Early 2009 [… …
44Type 052C destroyer — The Type 052C destroyer (NATO code name Luyang II class, often referred to as Lanzhou class after the lead ship name) is a class of destroyer built by the People s Republic of China. Two Type 052C (Lanzhou class) air defence missile destroyers… …
45Kamov Ka-31 — infobox Aircraft name = Ka 31 caption = The Kamov Ka 31 during the the Russian naval exercises in 2003 type =AEW/RadarPicket manufacturer = Kamov JSC designer = first flight = 1983 introduced = 1985 retired = status = In service primary users =… …
46T-54/T-55 operators and variants — Infobox Weapon name= T 54/55 caption= US Army recognition poster origin= Soviet Union type= Main battle tank is vehicle= yes is UK= yes service= 1947–present used by= wars= designer= Morozov (T 54), OKB 520 (T 54A and later) design date= 1945… …
47Low frequency — or LF refers to Radio Frequencies (RF) in the range of 30 kHz ndash;300 kHz. In Europe, and parts of Northern Africa and of Asia, part of the LF spectrum is used for AM broadcast service. In the western hemisphere, its main use is for aircraft… …
48Electrical lengthening — is the modification of an aerial which is shorter than a whole number multiple of a quarter of the radiated wavelength, by means of a suitable electronic device, without changing the physical length of the aerial, in such a way that it… …
49BMP-1 variants — This is a complete list of variants and designations of the BMP 1 infantry fighting vehicle. It is sorted by country of origin. Variants Former USSRInfantry fighting vehicles* BMP (Ob yekt 764) Original main prototype of BMP 1 developed by the… …
50B-1 Lancer — Infobox Aircraft name = B 1 Lancer type = Strategic bomber national origin = United States manufacturer = North American Rockwell Rockwell International Boeing caption = A B 1B Lancer in flight. designer = first flight = 23 December 1974… …
