Aircraft Lightning Striking Protection

Carbon fiber composite material has become the main material of aircraft. But the composite material is a poor conductor of the current and easy to be damaged in the lightning strikes. Micro expanded metal covers on the surface of composite material to dissipates the lightning strikes, prevent lightning striking damage, supply protection to composite material, and extend aircraft critical components' safe.

It is widely used in the aerospace for aircraft manufacturing at fuselage, wing, engine compartment, flaps, wing tip, even the rotating blades and body parts of the helicopter.

Micro expanded metal is a thin and light metal sheet, which single and integrated structure, which will not disperse or wrap. Flexible and easy fabricated structure can perfectly match with different parts of aircraft, guarantee the smooth surface and will not affect the electrical conductivity.

According to the SAE ARP 5414 standard, the aircraft surface is divided into three zones: zone 1A, Zone 1B-1C-2A-2B and zone 3. and we will recommend the different types of micro expanded metal mesh for different zones for the best performance.

Zone 1B and 2B – double layer of 195 g/m² or 420 g/m² copper mesh. Because the continuous current will enlarge the damage area and deepen the damage depth.
Zone 1A – 195 g/m² copper mesh for protection.
Zone 1C – 195 g/m² or 140 g/m² copper mesh
Zone 2A – 107 g/m² copper mesh
Zone 3 – 78 g/m² copper/aluminum mesh

Al lightning zones of airport distribution.

Apart from the above specifications, we will manufacture and custom the micro expanded metal in aluminum or copper material for your specific requirements and model.

Popular Specifications of Lightning Striking Protection Mesh in Aircraft
Product Code	Weight (g/m²)	Material	LWD (mm)	Overall Thickness (mm)	Open Area	Length (m)
YASAL-49	49	Aluminum 1060	2.0	0.10	64%	80–300
YASAL-78	78	Aluminum 1060	2.0	0.15	68%	80–300
YASAL-136	136	Aluminum 1060	2.0	0.15	63%	80–300
YASAL-36	36	Aluminum 1060	2.0	0.04	64%	80–300
YASCU-78	78	Pure Copper	2.5	0.10	85%	80–300
YASCU-107	107	Pure Copper	2.5	0.13	78%	80–300
YASCU-140	140	Pure Copper	3.2	0.13	77%	80–300
YASCU-195	195	Pure Copper	2.5	0.13	70%	80–300
YASCU-390	390	Pure Copper	3.2	0.33	55%	80–300
YASCU-420	420	Pure Copper	3.2	0.33	53%	80–300
YASCU-815	815	Pure Copper	3.2	0.25	64%	80–300
YASCU-78F	78	Pure Copper	2.5	0.05	85%	80–300
YASCU-107F	107	Pure Copper	2.5	0.05	78%	80–300
YASCU-140F	140	Pure Copper	3.2	0.08	77%	80–300
YASCU-195F	195	Pure Copper	2.5	0.08	70%	80–300