Compare · Square vs round reserve — which Mayday type fits?

APCO Mayday Square vs APCO Mayday PP

Square canopy or classic round — the Mayday range in the numbers of the manufacturer's comparison table.

The Mayday Square is the square canopy of the Mayday range: 16 gores, sink rates of 4.9–5.1 m/s at maximum load, from 1.32 kg and 3,000 cm³. The Mayday PP is the classic round canopy (16–20 gores) with decades of history and approvals by DHV, SHV and AFNOR/CEN. All values from APCO's own Mayday comparison table.

APCO 85101PN1 Mayday Square 100 in Deployment Bag 44120SLT APCO Mayday Square 100 vs APCO Mayday PP in Deployment Bag 44120T APCO Mayday PP 18

Quick compare

At a glance: APCO Mayday Square 100 vs APCO Mayday PP 18.
Criterion APCO Mayday Square 100 APCO Mayday PP 18
Construction Square canopy, 16 gores Classic round, 16–20 gores
Variants 100 / 140 / 160 Regular, Light and Superlight in 16/18/20
Best sink rate in the range 4.9 m/s @ 160 kg (Square 160) 5.4 m/s @ 160 kg (PP 20)
Approvals EN tests DHV / SHV / AFNOR-CEN (Regular), EN/LTF (Light/Superlight)
Repack every 6 months (APCO manual) every 6 months (APCO manual)

Two constructions, one comparison table

All numbers below come from APCO’s own Mayday comparison table (weight without container, sink rate at maximum load):

Mayday Square (square canopy)

ModelAreaGoresWeightPacking volumeSink rate @ max load
Square 10025 m²161.320 kg3,000 cm³5.1 m/s @ 100 kg
Square 14033 m²161.680 kg4,800 cm³5.1 m/s @ 140 kg
Square 16038 m²162.140 kg5,320 cm³4.9 m/s @ 160 kg

Mayday PP (classic round, Regular variants)

ModelAreaGoresWeightPacking volumeSink rateMax loadApproval
PP 1623 m²161.890 kg4,000 cm³6.3 m/s106 kgDHV
PP 1830.4 m²182.220 kg4,950 cm³5.4 m/s120 kgSHV
PP 2037.5 m²202.690 kg5,400 cm³5.4 m/s160 kgAFNOR/CEN

The PP range additionally exists as Light and Superlight (e.g. Superlight 18: 1.597 kg, 3,950 cm³, 5.1 m/s, 115 kg, EN certification EP021.2009).

Repack: identical

Per the APCO manual, both constructions need a repack every six months by a qualified person, plus an annual airworthiness inspection. After every deployment, repack before further use.

We coordinate the service with the workshop in Taufkirchen — enquiries by mail.

See all Mayday models → · Guide: buying a reserve parachute →

Recommendation

When APCO Mayday Square 100?

Mayday Square for the lower sink rate at comparable maximum load and the smaller packing volume — Square 100: 5.1 m/s, 1.32 kg, 3,000 cm³.

To the APCO Mayday Square 100 →
When APCO Mayday PP 18?

Mayday PP as the classic round canopy built for decades — with Regular, Light and Superlight variants for every weight and packing budget.

To the APCO Mayday PP 18 →