Python (missile)

Rafael Python
Rafael Python
	The newest and the oldest member of the Python family of AAM for comparisons, Python-5 (displayed lower-front) and Shafrir-1 (upper-back).
Type	Short-range air-to-air missile
Place of origin	Israel
Service history
Used by	Seeoperators
Production history
Manufacturer	Rafael Advanced Defense Systems
Unit cost	Shafrir series: Shafrir-1:US$20,000
Produced	Shafrir series: 1961–1983; Python series: 1980–present;
Specifications
Mass	103.6kilograms(228pounds6ounces)
Length	3.1metres(10feet)
Diameter	160millimetres(6.3inches)
Wingspan	640 mm (25 in)
Warhead	11 kg (24 lb 4 oz)
Detonation; mechanism	proximity
Engine	solid fuel rocket motor
Operational; range	>20kilometres(12miles)
Flight altitude	N/A
Maximum speed	Mach 4
Guidance; system	infrared homing+ 320×240 pixel dual waveband electro-optical imaging seeker, lock on after launch, with infrared counter-counter-measures (IRCCM)
Launch; platform	Aircraft: CASA C-101 Aviojet; F-4EKurnass 2000; F-5E/F Tiger-II; McDonnell Douglas F-15 Eagle; General Dynamics F-16 Fighting Falcon; Dassault Mirage III; Dassault Mirage 5; Dassault Mirage 2000; IAI Nesher/Dagger/Finger; IAI Kfir; BAE Sea Harrier; HAL Tejas; SAAB Gripen NG; Sukhoi Su-30MKI[citation needed]; Su-25KMScorpion

The RafaelPython (פיתון)is a family ofair-to-air missiles(AAMs) built by the Israeli weapons manufacturerRafael Advanced Defense Systems,formerly RAFAEL Armament Development Authority. Originally starting with theShafrir(Hebrew:שפריר,loosely translated as a dome, or a protective cloak – but also similar sounding toDragonfly,a male form ofinflectionforDamselfly(שפירית)) series, theShafrir-1missile was developed in 1959, followed by theShafrir-2in early 1970s. Subsequently, the missiles were given the western name of "Python"by the parent company for export purposes, starting with thePython-3in 1978. Since then, it has been further developed and evolved into thePython-4,Python-5,Derbyand also, theSPYDER,an advanced ground-based air-defence system. Currently, the missiles are in service with the armed forces of over fifteen countries from around the world.

Design and development

Listed from top to bottom: Shafrir-1, Shafrir-2, Python-3, Python-4, Python-5.

In the 1950s, theIsraeli Air Force(IAF) submitted requirements for a domestically made air-to-air missile, to promote domestic defense industry and reduce reliance on imports. Rafael Armament Development Authority was contracted to develop theShafrir(Hebrew:שפריר,loosely translated asDragonfly,a male form ofinflectionforDamselfly,שפרירית) in 1959. The missile entered operational status with IsraeliMirage jetsin 1963, but the IAF was unhappy with its performance and no air combat kills were achieved with it during theSix-Day War,kills being made with guns instead. The improved Shafrir-2 was soon introduced in 1971, and it proved to be one of the most successful air-to-air missiles ever made. During the 1973Yom Kippur War,the IAF launched 176 Shafrir-2 missiles, destroying 89 enemy aircraft.^[4]The Shafrir-2 was exported along with Israeli-made aircraft toSouth Americancountries.

After the Shafrir-2, the new missiles made by Rafael were given the western name ofPython.This is why the next missile built by Rafael in early 1970s was named Python-3, but there is no Python-1 or Python-2 (they were Shafrir-1, Shafrir-2). The Python-3 has improved range andall-aspectattack ability, it proved itself before and during the1982 Lebanon War,destroying 35 enemy aircraft. ThePeople's Republic of Chinawas impressed with its performance and license-built the Python-3 as thePiLi-8 (PL-8) AAM.^[5]

Further improvements to the Python-3 led to the development of Python-4 in mid-1980s, which added the option for helmet-sight guidance.^[6]In the 1990s Rafael started development on the Python-5 AAM, which was equipped with an advanced electro-optical imaging seeker with lock-on after-launch ability.^[7]The new missile was show-cased in 2003Paris Air Show,and intended for service with IAF theF-15I Ra'am( "Thunder" ) and theF-16I Sufa( "Storm" ).

The Python-5 is said to have full sphere launch ability or is an all-aspect missile, meaning it can be launched at a target regardless of the target's location relative to the direction of the launching aircraft. It can lock onto targets after launch, even when they are up to 100 degrees off theboresightof the launching aircraft.

Variants

Shafrir-1

TheShafrir-1was developed in 1959–1964 to fulfill IAF's requirement for a domestic air-to-air missile. It was intended to build the domestic defense industry's abilities, and reduce reliance on foreign imports. The fear of foreign dependence was later proven when France banned arms export to Israel.

The Shafrir-1 was intended for use on French-builtMirage IIIjets. The first testing took place in France in 1963. However the missile's performance was so poor that work immediately started on the next improved version, the Shafrir-2.^[8]

Length: 250 cm (98 in)
Span: 55 cm (22 in)
Diameter: 14 cm (5.5 in)
Weight: 65 kg (143 lb)
Guidance: IR
Warhead: 11 kg (24 lb) blast explosive, later 30 kg (66 lb)
Range: 5 km (3 mi)
Speed: Mach 1.7

Shafrir-2

The Shafrir-2 was credited with 89 kills in the 1973 Yom Kippur War.^[4]During its whole service life, it is credited with a total of 106 kills.

Length: 250 cm (98 in)
Span: 55 cm (22 in)
Diameter: 15 cm (5.9 in)
Weight: 93 kg (205 lb)
Guidance: IR
Warhead: 11 kg (24 lb)
Range: 5 km (3 mi)
Speed: Mach 2.1

Python-3

Python 3 missile under the wing of an Israeli F-15 Eagle.

The Python-3 is a much-improved AAM with all-aspect attack ability, higher speed, range, and performance. It performed well before and during the 1982 Lebanon War, scoring 35 (other sources claim 50) kills.^[7]

China'sPLAAFwas quite impressed with this missile, and paid for licensed production as thePL-8 AAMin the 1980s.^[5]The program code named "Number 8 Project" ( số 8 công trình ) and formally started on September 15, 1983. From March 1988 to April 1989, technology transfer to China was complete while license assembly and license built parts continued, and by the spring of 1989, the complete domestic Chinese built missile received state certification. The major supplier of the missile was Xi'an Eastern Machinery Factory ( Tây An phương đông xưởng máy móc ) located atXi'an,and China is also reported to have developed a helmet-mounted sight (HMS) system for the PL-8.^[5]

Length: 295 cm (116 in)
Span: 80 cm (31 in)
Diameter: 16 cm (6.3 in)
Weight: 120 kg (260 lb)
Guidance: IR
Warhead: 11 kg (24 lb), active proximity fuse
Range: 15 km (9.3 mi)
Speed: Mach 3.5

Python-4

A Python 4 missile under the wing F-15D Baz '957'

The Python-4 is a 4th generation AAM with all-aspect attack ability, and integration with a helmet-mounted sight (HMS) system.^[6]It entered service in the 1990s, and like its predecessor Python-3, it is integrated with theElbit SystemsDASH (Display And Sight Helmet) HMS system for Israeli F-15s and F-16s, Chilean F-16s (MLU and C/D block 50/52 plus), F-5E/F Tiger III, South American Kfirs and the SAAB JAS 39 Gripen. The missile's seeker is reported to use dual band technology array similar to that of USFIM-92 Stinger(infrared homingand ultraviolet), withIRCCM(IR ECCM) ability to reduce background IR radiation to reduce the effectiveness of enemy flares.^[9]

Length: 300 cm (120 in)
Span: 50 cm (20 in)
Diameter: 16 cm (6.3 in)
Weight: 120 kg (260 lb)
Guidance: IR
Warhead: 11 kg (24 lb),active laserproximity fuse with back-up impact fuse
Range: 15 km (9.3 mi)
Speed: Mach 3.5 or more

Python-5

Python-5, the latest member in the Python family of AAMs

A Python-5 AAM being fired from Indian Air ForceHAL Tejasfighter

The Python-5^[10]^[11]is currently the most capable visual rangeair-to-air missilein Israel's inventory. As a short range air-to-air missiles, it is capable of "lock-on after launch" (LOAL), and has full-sphere/all-direction (including rearward) attack ability. The missile features an advanced seeker which includes anelectro-opticalandimaging infraredhoming seeker which scans the target area for hostile aircraft, then locks-on for terminal chase, and a complex design utilizing a total of eighteen aerodynamic surfaces.^[7]The Python-5 was first used in combat during the2006 Lebanon War,when it was used by F-16 Fighting Falcons to destroy two Iranian-madeAbabil UAVsused by theHezbollah.^[1] On 13 May 2021, an Israeli F-16 shot down a Hamas operated Shehab suicide drone with a Python-5 air-to-air missile.^[12]^[13]^[14]

Length: 310 cm (120 in)
Span: 64 cm (25 in)
Diameter: 16 cm (6.3 in)
Weight: 105 kg (231 lb)
Guidance: IR + electro-optical imaging
Warhead: 11 kg (24 lb)
Range: > 20 km (12 mi)
Speed: Mach 4

Other Python developments

Derby

TheDerbymissile

Also known as the Alto, the Derby missile is aBVR,medium-range (~50 km (31 mi))active radar homingmissile. Though technically not part of the "Python" family, the missile is an enlarged version of the Python-4 with an active-radar seeker.^[15]

Length: 362 cm (143 in)
Span: 64 cm (25 in)
Diameter: 16 cm (6.3 in)
Weight: 118 kg (260 lb)
Guidance: Active Radar
Warhead: 23 kg (51 lb)
Range: 50 km (31 mi)
Speed: Mach 4

I-Derby ER

In June 2015, Rafael confirmed the existence of the I-Derby-ER, an extended range version of the Derby that increases range to 54 nmi (62 mi; 100 km), after a "Python 6" version based on an air-launchedStunner missilewas abandoned. To achieve greater range, a dual-pulse solid rocket motor is added, where the secondary pulse of energy as the missile nears the target extends flight time. It also combines the seeker and fuse into an integrated sensor and fusing system to make room for the new motor.^[16]

In May 2019, it was reported that India was planning to arm itsSukhoi Su-30MKIfighters with I-Derby ER missiles to replace itsR-77missiles. Previously, in 2018, it had already been selected for the Indian Air Force'sHAL Tejasfighter.^[17]

SPYDER

SPYDER—missile firing unit (MFU)

The SPYDER (Surface-to-airPYthon andDERby) is an advanced ground-based anti-aircraft missile system developed by Rafael that uses surface-to-air versions of the Python-5 and Derby missiles.

Operators

TwoPL-8AAMs are clearly visible on a Chinese NavyShenyang J-8interceptor

Current operators

Argentina– Shafrir-2 (350 missiles, delivered 1981).^[18]
Bolivia– Python-3.^[19]
Brazil– Python-3 (400 missiles, delivered 2001), Python-4 and Derby (200 missiles each, all delivered 2011).^[18]
Chile– Shafrir-2 (50 missiles, delivered 1978), Python-3 (120 missiles, delivered 1997), Python-4 (280 missiles, delivered 2011) and Derby (60 missiles, delivered 2003).^[18]
People's Republic of China– Python-3 (3000 missiles, delivered 1983, local designationPiLi-8 (PL-8)).^[5]^[18]
Colombia– Shafrir-2 (80 missiles, delivered 1989), Python-3/4 (75 missiles each, all delivered 2005), Python-5 (100 missiles, delivered 2011) and Derby (40 missiles, delivered 2010).^[18]
Ecuador– Shafrir-2 (75 missiles, delivered 1984), Python-3/Python-4 (60 missiles, delivered 1996), Python-5 (50 missiles, delivered 2001) and Derby (60 missiles, delivered 2003).^[18]
El Salvador– Shafrir.^[20]^{[clarification needed]}
Georgia– Python-5 and Derby missiles delivered as part ofSPYDERsystem.^[21]
Honduras– Shafrir-2 (100 missiles, delivered 1978).^[18]
India– Python-4 and Python-5 (100 missiles, delivered 2007) and I-Derby ER.^[18]
Israel– Shafrir-1/2, Python-4 and Python-5, (primary user, local designationZephyr).
Philippines– Python-5 and Derby with solid rocket booster (part ofSPYDERair defense system).^[22]^[23]
Romania– Python-3.^[24]
Singapore– Python-4 (600 missiles, delivered 2004) and Python-5 and Derby missiles.^[18]As of 2023, Python-V are used on RSAF F-16C/D+ fighters.^[25]
Republic of China (Taiwan)– Shafrir-2 (450 missiles, delivered 1977).^[18]
Thailand– Python-4 (400–500 missiles, delivered 1990).^[18]
Venezuela– Python-4 (54 missiles, delivered 2004).^[18]
Vietnam– Python-5 and Derby (375 missiles each, delivered 2018 as part of SPYDER system).^[18]