AAD: Cypres, MARS, Vigil — Which to Choose and Why

You've just bought your first complete rig, or you're looking at a used setup and facing a question every newcomer eventually hits: which AAD do I go with? The short answer is that all three main devices — Cypres, MARS, and Vigil — are certified, reliable, and used daily at thousands of drop zones around the world. The long answer is that the differences are real, they're measurable, and they're worth understanding before you spend anywhere from €1,000 to €1,500 on a piece of equipment you hope you'll never actually need.

What an AAD Is — and What It Does (and Does NOT Do)

Before getting into the comparison, one fundamental point worth repeating even at 200 jumps: an AAD — Automatic Activation Device — does not open your main canopy. It fires the cutter that severs the reserve closing loop, triggering an emergency deployment, when it detects that the skydiver is below a certain altitude at a vertical speed inconsistent with open-canopy flight.

In practice: if you're unconscious, disoriented, or have simply lost altitude awareness, the AAD steps in as the last line of defense. It is not a substitute for the active emergency procedure (cutaway + reserve), but it is the device that saves you when you can't execute that procedure yourself.

All modern AADs work by measuring atmospheric pressure (i.e., altitude) and its rate of change over time (i.e., descent rate). When both parameters exceed the programmed thresholds — typically around 225–300 meters of altitude remaining and speeds above roughly 35 m/s — the device fires the cutter. The differences between models lie in the algorithm, sensor precision, logic for handling anomalous conditions, and maintenance requirements.

The Three Contenders: Technical Specifications Compared

Cypres (Airtec, Germany) — The Cypres is the device that essentially created the modern AAD market: the first commercial version dates to the early 1990s (check the official Airtec website for the exact date), and Airtec has refined the product with regular updates ever since. Today the lineup includes several variants: Expert (the standard model for most licensed skydivers), Speed (for high-vertical-speed disciplines such as freefly), Tandem (for the greater weights of a tandem system), Student, and Wingsuit.

Key specifications of the Cypres Expert:

Activation altitude: approximately 225 m AGL (above ground level)

Activation speed: ≥ 35 m/s

Service life: 12.5 years from date of manufacture (check the current version on the Airtec website, as specifications may vary by model and production year)

Service interval: every 4 years (check the Airtec website for updated specifications on tandem models)

Unit weight: approximately 230 g

Purchase price (indicative): approximately €1,200–1,400 depending on model; prices subject to change — verify with authorized dealers.

Service cost (indicative): approximately €250–350 per cycle

Vigil (Advanced Aerospace Designs, Belgium) — The Vigil entered the market later than the Cypres but carved out a significant share thanks to a feature many riggers appreciate: a longer service interval. The Vigil II+ (the current version) requires no mandatory periodic service during its operational life, unless an anomalous event or physical damage occurs (check the current Vigil II+ user manual and any service bulletins issued by AAD). The service life is 20 years from the date of manufacture.

Key specifications of the Vigil II+:

Activation altitude: approximately 225 m AGL (Expert mode)

Activation speed: ≥ 35 m/s

Service life: 20 years (check the current product details at aadvigilance.com)

Service interval: no mandatory periodic service under normal conditions (annual verification of the power-on self-test)

Unit weight: approximately 220 g

Purchase price (indicative): approximately €1,100–1,300

Service cost: no mandatory periodic service cycle (cutter replacement cost after any activation)

MARS (Parasafety, France) — The MARS is the least common of the three in Italy, but it has an interesting technical characteristic: its activation system is electro-mechanical, with an approach that differs slightly from its competitors. The current version is the MARS 2.

Key specifications of the MARS 2:

Activation altitude: approximately 300 m AGL (indicative figure — verify the current technical specifications on the Parasafety website before drawing any operational conclusions)

Activation speed: ≥ 35 m/s

Service life: 15.5 years

Service interval: every 4 years

Unit weight: approximately 220 g

Purchase price (indicative): approximately €1,000–1,200

Service cost (indicative): similar to the Cypres, approximately €250–350 per cycle

Total Cost of Ownership: The Math Most People Ignore

Purchase price is only part of the equation. If you're buying an AAD at 25 years old, service life and maintenance intervals dramatically change the total cost over time.

Let's run the numbers over a 12-year horizon (the average lifespan of a rig before its first major overhaul):

Cypres Expert (12.5-year life, service every 4 years):

Purchase: ~€1,300

Services over 12 years: 2 services (year 4 and year 8) × ~€300 = ~€600

Estimated total: ~€1,900

Vigil II+ (20-year life, no mandatory periodic service):

Purchase: ~€1,200

Services over 12 years: €0 (cutter replacement only if activated)

Estimated total: ~€1,200

MARS 2 (15.5-year life, service every 4 years):

Purchase: ~€1,100

Services over 12 years: 2 services × ~€300 = ~€600

Estimated total: ~€1,700

These figures are indicative and market prices vary, but the direction is clear: the Vigil has a significantly lower total cost of ownership over a long horizon, at equivalent reliability. The MARS has the lowest purchase price but accumulates service costs similar to the Cypres.

Why Does the Cypres Need Servicing Every 4 Years?

Everyone asks this. The technical answer is that the Cypres uses a non-user-replaceable battery and electronic components that Airtec wants to inspect and certify periodically to guarantee activation specifications. This isn't marketing: it's a conservative design choice that places certification responsibility squarely with the manufacturer.

During the four-year service, Airtec (through its authorized centers) checks the integrity of the pressure sensor, the remaining battery charge, the cutter, the internal circuitry, and the firmware logic. If anything falls outside acceptable ranges, it gets replaced. The device comes back with a fresh certification.

The Vigil took a different approach: a user- (or rigger-) replaceable battery, an electronic self-test at every power-on, and a design philosophy that shifts verification to the self-test rather than centralized servicing. This is not necessarily better or worse — it's a different philosophy.

Certification and Approval: What Matters in Italy

All three devices — Cypres, Vigil, and MARS — hold TSO-C119 certification (the FAA's Technical Standard Order) and ETSO-C119 (the EASA European equivalent). This is the minimum requirement for use on civil aircraft.

In Italy, ENAC regulations on parachuting equipment require that any AAD fitted to a system be an approved device. All three meet this requirement. There is no ENAC list that favors one brand over another: the choice belongs to the skydiver (or the rigger assembling the system).

One practical point: if you're buying a used rig with an AAD included, always check the AAD's date of manufacture and the date of its last service (for Cypres and MARS). A Cypres with an expired service is not usable until it has been serviced, regardless of whether it appears to be working. This is not a minor detail — it's an operational requirement.

Which One to Choose? A Decision Matrix

There's no universal answer, but there are some fairly clear patterns:

Choose Cypres if:

Your DZ or primary instructor has solid experience with Cypres (which is the case at most Italian drop zones)

You want the brand with the longest track record and the most extensive publicly documented activation history

You fly freefly or other high-speed disciplines: the Cypres Speed is designed specifically for these, with higher velocity thresholds

You're comfortable with the four-year service cycle as a routine maintenance item

Choose Vigil if:

You want to minimize total cost of ownership over a 10–15 year horizon

You value the 20-year service life (on a rig you plan to keep for a long time)

Your rigger knows the Vigil and is comfortable working with it

You jump a moderate-to-low number of times per year and want a device that won't accumulate service costs

Choose MARS if:

Your purchase budget is tighter

You're buying a first rig and want to spend less on the AAD in order to invest in a quality main canopy

Your DZ has a rigger with MARS experience (it's less common in Italy, so check first)

One note on the MARS: the slightly higher activation altitude (~300 m vs. ~225 m for the other two) is not necessarily a disadvantage — in fact, in some situations it provides a few extra meters for the reserve opening sequence to complete. But it's a parameter you should know about.

The Rigger Factor: Don't Underestimate It

There's one element that rarely shows up in online reviews but matters enormously in practice: your rigger's familiarity with the device. A rigger who has packed 200 Cypres units and 5 Vigils over their career will work faster, with less margin for error, and with greater confidence on the Cypres. Not because the Vigil is more complicated, but because procedural competence is muscle memory, not just theory.

Before you buy, ask your DZ's rigger which AAD they know best. It's not a deciding factor if you're willing to take your rig to a specialist rigger, but it's a practical consideration you shouldn't overlook.

In Summary

All three devices — Cypres, Vigil, and MARS — are reliable, certified safety tools used daily in skydiving worldwide. There is no objectively superior AAD: there are AADs better suited to different usage profiles and budgets.

If you had to sum up each device in one line:

Cypres: the most widely used in Italy, thirty-year track record, four-year service cycle, specialized variants for every discipline

Vigil: lowest total cost of ownership, 20-year service life, no mandatory periodic service

MARS: competitive purchase price, less common in Italy, slightly higher activation altitude

Whatever you choose, make sure you buy from an authorized dealer, register the device with the manufacturer (all three offer online registration), and keep track of service dates in your logbook. The AAD is the last link in the safety chain — it's not the place to cut corners by buying used without a documented history.