Su-39

Su-39
Faction	Russian Armed Forces
Type	Ground Attack Craft
Seats	1 seat: 1× Pilot
Item capacity	Max: 3× Weapons 20× Magazines
Top speed	~ 858 km/h
Service ceiling	6,000 m
Fuel capacity	1000 fuel units
Primary armament	Main: 1× GSh-30-1 30 mm 4× Ch-29 AGM 2× S-8T 80 mm Rocket Pods
Secondary armament	Secondary: 2× R-73 AAM Defensive: 120× Countermeasures (Chaff/Flare)
Variants	Su-25
Games

The Su-39 is a variant of the Su-25 Close Air Support jet used exclusively by the Russian Armed Forces in ArmA 2.

Overview

• Role:
  • Close air support

«

The Su-25 (NATO designation: Frogfoot) is a single-seat twin-engine jet aircraft developed in Russia. It is able to withstand heavy enemy fire thanks to very robust armored construction and finds its key strengths in the areas of low-level maneuverability and accurate weapons delivery. It is armed with Gsh-30-2 30mm cannon, four Kh-29 air-to-surface missile launchers, four S-8KO air-to-surface anti-armor missile platforms, and two AA-11air-to-air missile platforms. This one is used by the Russian army. Armoury Description

»

Design

The Su-39 is a simply modified variant of the baseline Su-25 plane. Unlike its parent jet, it swaps most of its unguided munitions with infrared-guided anti-tank missiles instead, which makes it more suited as a tank hunter.

Armament
Its carries the same 30 mm cannon as its parent which feeds from a 180-round belt of high-explosive (HE) shells, along with the twin R-73 AA missiles and 80 mm rocket pods.

The main difference is that the FAB-250 iron bombs have been exchanged with four Ch-29 AGMs instead.

Features
Aside from carrying different weapons, the Su-39 is completely identical to its older predecessor in virtually every way, right down to fuel capacity, handling, and even max speed.

As such, it shares the same strengths and weaknesses of the Su-25, but is still overall better at destroying ground vehicles thanks to its anti-tank missiles.

Crew Capacity
The Su-39 is only able to carry its pilot and cannot transport any passengers or additional crew members.

Protection

The Su-39 has a base armour value of 75.

Hull

The Su-39's hull can withstand up to 75 points of damage. Depletion of the hull's integrity will instantly result in a total loss.

Armament

All four weapon systems are controlled by the pilot:

GSh-30-1

Base damage value	Aerodynamic friction	Initial velocity (m/s)
55	-0.00095	820

30 mm autocannon. Fires HE shells useful for providing direct air-to-ground fire support against infantry and unarmoured/lightly-armoured vehicles.

It can attain a fire rate of up to ~ 1,500 RPM and has a muzzle velocity of 820 m/s. It has a dispersion spread of 0.0006 rad at distances of up to 1,250 metres away. The shells have a blast radius of only 1 metre.

Ch-29

Damage type	Base damage value	Maximum speed (m/s)
High-Explosive Anti-Tank	4,000	805

Air-to-ground anti-tank missiles. Can utilise either infrared or laser-guidance.

Ch-29s are soft launched and take 2 seconds to reach a top speed of 805 m/s in mid-flight. The warheads have a blast radius of 9 metres.

S-8T

Damage type	Base damage value	Maximum speed (m/s)
High-Explosive	210	610

Unguided air-to-ground rockets. Fires HE rockets that are strong against infantry and medium armoured vehicles (not heavy armour).

The pods have a delay of 0.08 seconds in-between launches (~ 750 RPM) and are always fired in pairs. The rockets are launched with an initial velocity of 44 m/s and take 1.1 additional seconds to reach a top speed of 470 m/s in-flight. The rocket warheads themselves have a blast radius of 5 metres.

R-73

Damage type	Base damage value	Maximum speed (m/s)
High-Explosive	160	828

Infrared-guided short range air-to-air missile. Has a maximum lock-on range of 10,000 metres.

R-73s are soft launched but have an imposed delay of 1 second in-between launches. It takes 5 seconds for the missile motors to fully reach a top speed of 828 m/s. The warheads have a blast radius of 9 metres.

Avionics

MAWS

The Su-39 does not have a Missile Approach Warning System and will not warn the pilot of incoming missiles already in mid-flight.

RWR

The Su-39 possesses a Radar Warning Receiver, and will alert the pilot of being locked-onto by radar-based targeting systems.

IWR

The Su-39 lacks an Infrared Warning Receiver, and will not warn the pilot of being targeted by infrared-based weapon systems.

Trivia

• The Su-39 in real-life is actually quite different to the baseline Su-25 in several ways and would not be completely identical to it.
  • Examples include using a twin-barrelled 30 mm cannon as opposed to the Su-25's single barrel. It also incorporates a completely different suite of defensive avionics along with a refurbished airframe.
• Following the release of the Community Configuration Project updates for the Steam version of ArmA 2, the Su-39 was finally updated to properly use both flare and chaff-based countermeasures (as opposed to just flares).

Gallery

External links

• Wikipedia: Sukhoi Su-39

See also

Variants

• Su-25

Aircraft of comparable role and configuration

• Su-34 (Alternate Russian Armed Forces counterpart)
• A-10 Thunderbolt II (U.S./USMC/U.S. Army counterpart, ArmA: CWA/ArmA 2 only)
• To-199 Neophron (CSAT successor, ArmA 3 only)