Last Update September 5, 2016


  • Weapons & Ammunition

ETR, was founded in 1991 by mechanical engineers with a large experience in the field of military products. The company's initial aim was to produce and supply airborne weapons to the Brazilian defence ministry and to governments of Latin-American countries. This aim has been successfully reached. Meanwhile ETR has extended its sales activities beyond Latin-American borders, including Asia and Africa. The company is in a position to supply top quality products at internationally competitive prices.

ETR’s Departments:

  • Commercial,
  • Administration,
  • Industrial,
  • Quality,
  • P&D.

ETR Certificates of Quality Assurance: ISO 9001:2000, by SGS (Societe Generale de Surveillance), Brazil RBQA-2120, in stage of updating, by CTA (Aerospace Technical Center of Brazil).

ETR Industria Mecanica Aerospacial Ltda. - Pictures

Contact info #1

Walkiria Campmann
+55 12 394 11975
Export Assistance
+55 12 3941 8720
Rua Apore no: 320- Vila Sao Bento, Sao Jose dos Campos, 12231-390 Sao Paulo, Brazil

Contact info #2

Genesio Schlickmann
+55 12 3941 1975
Sales Manager
+55 12 3941 8720
Rua Apore no: 320- Vila Sao Bento, Sao Jose dos Campos, 12231-390 Sao Paulo, Brazil

Contact info #3

Rubens Jacintho
+55 12 3941 1975
+55 12 3941 8720
Rua Apore no: 320- Vila Sao Bento, Sao Jose dos Campos, 12231-390 Sao Paulo, Brazil


Aviation Bombs

  1. BLG
  2. MK
  3. APF
  4. EFB 

1. BLG Cluster Bomb- General Information

The Blg od Cbs (Cluster Bomb System) is a multiple affect, non guided, free fall container filled with variable number of PM-1 (bomblet or submunition) for each type BLG-500k, BLG-250k and BLG-60k. They are designed for tactical use against dispersed ground targets in big areas. This highly versatile system has been proved in combat situations, and may effectively be used against a wide range of hard and soft targets having anti amour, antipersonnel and incendiary effects.

The trajectory of the bomb is ensured by the stabilizer that provides stability and direction to impact the target area. The main body opening time is controlled by the programmable aligned electronic fuze EEA-II, which provides a wide range of possibilities. The dispersion of the bomblets is ensured by the spinning of the container after being released from the aircraft. 

Sub-Munitions Specy

PM-1 Bomblets   
The PM-1 is a small bomb of a slender shape with a plastic extension and a copper cone specially designed to produce the hollow charge affect providing the anti amour capacity (Monroe effect). The pre-fragmented body provides the anti personnel affect. Special inserts inside the charge provide the incendiary effect. A plastic stabilizer and a non aligned fuze stabilized and armed the PM-1 during the fall.

PM1- Sub Munition Specifications:

Weight: 700 gr
Length: 364 mm
Diameter: 48 mm
Weight Explosive Charge: 161 gr

Sub Munition Performance:
Fragmentation (approx) 300 pieces.
Penetration (mild steel amour) Lethal area: 452.
BLG: Cluster Bomb- Specifications:     

BLG-60K Main Features:

Weight: 60kg
Length With Fuze: 2.060 mm.
Diameter: 253 mm
Fin Span Close: 400 mm
Number of Bomblets: 50 units
Area Covered: 15.000 m2

BLG- 250K Main Features:

Weight: 250kg Length
With Fuze: 2.650 mm
Diameter: 440 mm
Fin Span Close: 690 mm
Number of Bomblets: 240 units
Area Covered: 40.000 m2

BLG-500K Main Features:

Weight: 500kg
Length With Fuze: 3.288 mm
Diameter: 440 mm
Fin Span Close: 692 mm
Number of Bomblets: 400 units
Area Covered: 60.000 m2

2. MK General Purpose Bomb- General Information:

Metalnor manufactures a complete series of General Purpose aircraft bombs ranging from 500 lbs. to 2000 lbs. The Low drag, free fall, General Purpose bomb made up of steel is a standard aircraft weapon and in general use all over the world. These bombs can be triggered by impact or a proximity fuses, mounted on the nose or in the tail and their devastating effect upon impact is caused by the shock wave produced and the fragmentation of the bomb steel case and debris thrown out by the explosion.

The long, narrow and aerodynamic shape of Metalnor's General Purpose Bombs allow them to be carried under wings or fuselage or high speed aircrafts with minimum performance degradation. Between 35% and 40% of the bomb total weight consists of explosive which can be tritonal or Hexolite. These explosives are characterized by their stability and insensitivity to shock or heat ensuring outstanding safety for storage, transport, handling and loading on aircraft. Metalnor's bombs can be fitted with the standard NATO 14 in., Warsaw Pact 250 mm.

Pallon System - Retarded Bombs

All Metalnor's General Purpose Bombs can be fitted with high drag fin assemblies, Metalnor's developed Pallon Tail Parachute. The safety mechanism is released the moment the bomb is drop and four scoops are opened on the nylon dome, producing an air current which inflates the pallon. The speed of the bomb decreases quickly when the pallon is inflated.

MK- General Purpose Bombs- Specifications:

MK-82 Main Features:

Weight: 230kg
Length With Fuze: 2.170 mm
Diameter: 274 mm
Fin Span : 385 mm
Explosive charge Weight: 90kg
Explosive: Tritonal/ Hexolite
Fuzes Type: Nose Tall

MK-83 Main Features:

Weight: 416 kg
Length With Fuze: 2.895 mm
Diameter: 356 mm
Fin Span : 498 mm
Explosive charge Weight: 188kg
Explosive: Tritonal/ Hexolite
Fuzes Type: Nose Tall

MK-84 Main Features:

Weight: 900kg
Length With Fuze: 3.690 mm
Diameter: 457 mm
Fin Span : 645 mm
Explosive charge Weight: 433kg
Explosive: Tritonal/ Hexolite
Fuzes Type: Nose Tall

3. APF: Antipersonnel Fragmentation Fiber glass Bomb:

The APF Bomb series have been developed for use against soft skinned targets by means of shrapnel fragments dispersed over wide areas. Against the short lethal fragment range of the General Purpose Bomb, an APF is 3 to 4 times more effective a giving a high density of similar sized shrapnel balls over larger zones.

They are highly effective against:

Troops deployed
Trops In trench
Supply Convoys
Parked Plains

Anti aircraft
Gun and missile sites
Radar sites
Fuel tanks
APF Bombs are composed of a high resistant fiberglass casing in which are inserted steel pellets of an average diameter of 10,5 mm a fixed fin steel sheet stabilizer, a tritonal explosive charge, and a impact or a proximity fuze. In shape, Dimensions, weight and aerodynamic properties APF Bomb are similar to the GP MK Series bombs and can be fitted with low or high drag stabilizers for low level attacks.

This bomb may be released by type of combat aircraft with NATO (14in), Warsaw Pact (250 mm.) suspension system and their loading and arming procedures are the same as those of the standard GP MK Bombs, needing no special training.

Bomb affect is through blast and shrapnel dispersal. Fragments are made of cast steel providing a hardness of 57 to 60Rc. with a mass of 5gr. This type of fragments gives the best penetration capability.

Depending on fuse timing, altitude, speed and release angle, an APF 84 can saturate an area of 80.000 sq.meters.

APF- Specifications

APF-82 Main Features:

Weight: 230kg
Length Without Fuze: 2.170 mm
Length With Fuze: 2.280 mm
Maximum Diameter: 274 mm
Fixed Fin Span: 285 mm
Fiberglass Body Weight: 18 kg
Explosive Weight: 22kg
Average Steel Ball Weight: 5 gr
Average Steel Ball Diameter: 10.5 mm
Quantity of Fragments: 33.000
Explosive type: Tritonal
Lethal Area: 32.000m2

APF-83 Main Features:

Weight: 436kg
Length without Fuze: 2.895mm
Length with Fuze: 3.005 mm
Maximum Diameter: 356 mm
Fixed Fin Span: 498 mm
Fiberglass Body Weight: 40 kg
Ahrapnel Weight: 240 kg
Explosive Weight: 65kg
Average Steel Ball Weight: 5 gr
Average Steel Ball Diameter: 10.5 mm
Quantity of Fragments: 60.000
Explosive type: Tritonal

APF-84 Main Features:

Weight: 900 kg
Length Without Fuze: 3.690 mm
Length With Fuze: 3.800 mm
Maximum Diameter: 459 mm
Fixed Fin Span: 642 mm
Fiberglass Body Weight: 90 kg
Shrapnel Weight: 580 kg
Explosive Weight: 190 kg
Average Steel Ball Weight: 5 gr
Average Steel Ball Diameter: 10.5 mm
Quantity of Fragments: 125.000
Explosive type: Tritonal
Lethal Area: 80.000m2

4. EFB: Antipersonnel Bomb- Specifications

Main features:

Weight: 300 kg
Length Without Fuze: 2.121 mm
Length With Fuze: 2.271 mm
Maximum Diameter: 324 mm
Fixed Fin Span : 456 mm
Metallic Body Weight: 78 kg
Shrapnel Weight: 135 kg
Explosive Weight: 70 kg
Average Steel Ball Weight: 5 gr
Average Steel Ball Diameter: 10.5 mm
Quantity of Fragments: 27.000
Explosive type: Hexolite
Lethal Area: 28.000m2


Multiple launcher LM- 70/7 M1 is designed to be used with Rockets FFAR 2.75 and SBAT-70 mm, a weapon to be employed as AIR-GROUND and is compatible with aircraft performance, tactical operations and training use.


Is a reusable element to the launch of 7 (seven) rockets, and similar to the LAU-68 A/B Launcher.


Its operation is very simple and at low cost as well as and presenting exceptional shot speed.

Main features   

Launcher Capacity: 7 rockets SBAT- 70mm ou FFAR 2.75
Empty Capacity: 26 kg
Distance between Lifting Handle: 14
Total Length: 1.260
Major Diameter: 253 mm
Launcher Tube Diameter: 75 mm
Time between Shot Burst: 60 ms


Bank References:  

  • Banco do Brasil S.A
  • Caixa Economica Federal S.A

Commercial References:  

  • Presstecnica Industria e Comercio Ltda.
  • Celerg S.A
  • Faparmas –Torneados de Precisao Ltda.
  • Embalagem Cavalcante Ltda.
  • Acotubo Industria e com Ltda.
  • Termomecanica Sao Paulo S.A
  • Indstria Mecanica Samot Ltda.
  • CBA Companhia Brasileira de Aluminio


ETR Industria Mecanica Aerospacial Ltda.

  • Rua Apore no: 320 Vila Sao Bento, 12231 390, Sao Jose dos Campos  , Sao Paulo, Brazil
  • +55 12 3941 1975
  • +55 12 3941 8720
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