MULTIPLE ELEMENT NET ASSEMBLY
USE
MENA is used as a sub-assembly of the aircraft arrester barrier system installed across both the ends of run-way to engage an aircraft in emergency, overshooting the runway during landing or aborted take-off.

The Barrier Net called Multiple Element Net Assembly (MENA) is used in conjunction with different types of Aircraft Gear Systems, at Air Fields in India. Multi Element Nets are manufactured in different variants depending upon the Energy Absorber system and capacity of aircraft.
 
Variants of MEN Assembly

Use

MENA-FT (Friction Break Type) MiG Series aircrafts
MENA-WT (Water Twister Type)
 
A. LEADING PARTICULARS - MENA-30
1. Construction Nylon-66
2. Width 58 m (loop to loop)
3. Suspended Height 4 M nominal at runway center.
4. Strength Overall 18,00,000 N ultimate tensile strength
5. Weight (Approx.) 650 Kg (dry) and 860 Kg (wet)
6. Element Breaking Strength
Vertical 3135 kg ( Min.)
Horizontal 2040 kg ( Min.)
7. Ultra Violet Rays Protection
Tapes impregnated with suitable resin coating & carbon black to provide maximum protection, against Sun light and loss of strength due to ageing.
8. Water Repellency Finish Tapes are imparted with Water repellent treatment..
9. Target Services 3 years.
 
B. LEADING PARTICULARS - MENA-40
1. Construction Nylon-66
2. Width 58 m (loop to loop)
3. Suspended Height 4.7 M nominal at runway center.
4. Energy to be absorbed (approx.) 120 mega joules
5. Element Breaking Strength
Vertical 3135 kg ( Min.)
Horizontal 2040 kg (Min.)
6. Ultra Violet Rays Protection
Tapes impregnated with suitable resin coating & carbon black to provide maximum protection, against Sun light and loss of strength due to ageing.
7. Water Repellency Finish Tapes are imparted with Water repellent treatment.
8. Target Services 3 years.
 
PRAMETERS OF AIRCRAFT
Sl. No. Parameters MENA-40
SU-30
MENA-30
MiG-21
1. Mass of aircraft
(Max at take off)
39000 kg 90000 lb
2. Speed 315 kmph 315 kmph
3. Cockpit height 4.5 m 2.75 m
4. Wing Span 14.7 m 7.15 m
 
BASIC DIFFERENCE BETWEEN MENA-30 & MENA-40
 
Sl. No.
Particulars
Existing
MENA-30

MENA-40
1. No. of Elements 30 Nos. 40 Nos.
2. Top Horizontal Strap 30 Nos. 40 Nos.
3. Bottom Horizontal Strap 60 Nos. 80 Nos
4. Shock Absorber 60 Nos. 80 Nos.
5. No. of Group of Elements 05 Nos. 08 Nos.
6. Vertical Strap 570 Nos. 480 Nos.
 
Contact :
Marketing & Export Division
Ordnance Factory Board
Ayudh Bhawan
Government of India
Ministry of Defence
10A S. K. Bose Road. Kolkata - 700 001, India.

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