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Part# 11-05351
MFR Model# M025-MEDIUM


A hard helmet designed specifically for use with Micro System headsets which combines with the headset to form an integrated assembly.

As headsets can be used without the helmet, this equipment provides a flexible communication system that can be used in both open-cockpit and enclosed-cockpit aircraft.

The helmet has an outer shell of high impact Polycarbonate and an internal trauma liner made from a combination of Polystyrene and Viscoelastic Polyurethane (Memory Foam). The trauma liner moulds to the shape of the user's head. which makes the helmets very comfortable. whilst the composite design of the liner maintains full impact protection.

Threaded bushes are provided in the outer shell. allowing an optional visor to be securely attached.The chin strap is adjustable and is fitted with a quick release buckle.


Helmet Sizes: To obtain the correct size of helmet, use a tape measure to measure the circumference of your head just above the ears.

  • Small: 55-57cm (22")
  • Medium: 57-59cm (23")
  • Large: 59-61cm (23.5")
  • Extra Large: 61-63cm (24.5")


  • Helmet can be used with any Lynx headset
  • Available in four sizes: S, M, L. XL
  • Certified to European Standard EN966:1996
  • Accessories
  • Customers Also Viewed
  • Frequently Purchased With


Great helmet, great fit, works great with my headset.

July 18, 2017


Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Will this Lynx helmet system work with my Lightspeed ZULU or other headset model?

We have no information on the Lynx helmets used with other headsets. These Lynx helmets are designed with Lynx headsets in mind.

Q: Does the helmet comes with the headset?

No, if you want the Relai system headset then part number 11-05398 is the headset for the helmet (you will have to order headset/helmet separate).

Q: Does this Lynx helmet comes with the headset?

No, this is just the helmet only. A Lynx headset must be purchased separately.

Q: Is the visor /face shield included with the Lynx system helmets or is it an accessory?

No, it is not included. Please see part number 11-05354 for the visor.

Q: What is the weight of the Lynx system helmet?

This helmet weighs approximately 1.84 lbs.

Q: what is the width of the( outside of the helmet) say, from one blue and red arrow ( painted on the helmet ) to the other side ?

Per the supplier: 30cm (11.81 in) length, front to back | 24.5cm (9.65 in) width, ear to ear | 20cm (7.87 in) tall, top to bottom

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