MarS WP 370 Tandem Reserve Canopy: Maximum Safety, Trusted Reliability

When it comes to tandem skydiving, reserve canopies are the final safeguard—and the MarS WP 370 Tandem Reserve Canopy delivers with precision, dependability, and strength. Designed specifically for the demanding needs of tandem operations, this reserve canopy represents the pinnacle of engineering excellence from MarS a.s.

Skydiving professionals around the world trust the WP 370 as their go-to backup, knowing it will deploy reliably, fly predictably, and land gently when it matters most. Built with advanced materials and tested under rigorous standards, this canopy sets the benchmark for safety in tandem reserve design.

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MarS WP 370 Tandem Built for the Unexpected: Confidence in Every Emergency

Instructors must be ready for anything, especially when flying with another life under their care. That’s why the MarS WP 370 Tandem Reserve Canopy is crafted to handle extreme scenarios with calm, stable, and controlled behavior.

Where other reserves may falter under load or instability, the WP 370 thrives. It reacts quickly, opens smoothly, and delivers a predictable glide path—all without requiring extreme input from the pilot.

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Key Benefits of the MarS WP 370 Tandem Reserve Canopy

Every design element of this reserve canopy was purpose-built to support tandem instructors during high-pressure deployments. Here’s what makes the WP 370 an outstanding choice:

✅ Precision Deployment, Every Time

• Consistently fast and stable opening in high-stress situations

• Reinforced pilot chute bridle ensures reliable extraction

• Designed to deploy cleanly even under non-ideal conditions

✅ Exceptional Load Handling

• Certified for maximum exit weight up to 220 kg (485 lbs)

• Optimized for heavy tandem pairings and high-altitude deployments

• Built to handle dynamic loading forces in rapid reserve deployments

✅ Predictable, Stable Flight Characteristics

• Minimal oscillation and smooth glide path under canopy

• Excellent steering authority for improved landing accuracy

• Low sink rate supports softer landings, even in off-field situations

✅ Rigorously Tested and Certified

• Meets EM 813, TSO C23d, and EASA standards

• Independently tested for structural integrity and emergency reliability

• Trusted by military, commercial, and sport tandem operators worldwide

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MarS WP 370 Tandem Design That Supports Life-Saving Performance

The MarS WP 370 Tandem Reserve Canopy excels not just because of its emergency deployment performance—but also because of its sophisticated aerodynamic design and material choices.MarS WP 370 Tandem

Precision-Engineered Ram-Air Profile

The canopy’s 7-cell, rectangular shape ensures that it inflates symmetrically, reducing the chance of spinning malfunctions. This configuration also contributes to faster pressurization and greater canopy stability once deployed.MarS WP 370 Tandem

The trailing edge has been designed with extra reinforcement, helping maintain shape and glide efficiency throughout the descent. The internal rib structure promotes clean airflow, making the ride smoother and more controllable for instructors managing passengers under stress.MarS WP 370 Tandem

MarS WP 370 Tandem Built with Premium, Zero-Porosity Fabric

To maximize longevity and preserve deployment speed, the WP 370 uses high-tenacity zero-porosity (ZP) nylon. This material retains air better, meaning more efficient inflation and longer life cycles between overhauls.

UV-resistant coatings and reinforced line attachment points further increase the canopy’s lifespan while keeping it resilient in all climates.

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MarS WP 370 Tandem Enhanced Flight Dynamics for Safer Landings

A key strength of the WP 370 is its stable and intuitive flight behavior. Unlike smaller or sport-oriented reserves that require aggressive piloting, the WP 370 provides a passive glide that’s easy to manage—even for new tandem instructors.

MarS WP 370 Tandem Designed for Precision and Margin

• Flat glide ratio supports reaching safe landing zones from less-than-ideal openings

• Responsive brake toggles allow subtle corrections during descent

• Moderate forward speed ensures control without demanding fast reactions

These features collectively offer unmatched safety margins for tandem skydiving instructors flying reserve landings.

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MarS WP 370 Tandem Durability That Meets the Demands of Tandem Work

Tandem reserve canopies undergo more strain than any other parachute component. That’s why the WP 370 was built to exceed the expectations of durability in both skydiving and military applications.

Reinforced Stitching & Load Zones

• All line attachment points feature triple-reinforced stitching

• High-load areas are stress-tested for dynamic openings at terminal velocity

UV and Weather Resistance

• Canopy fabric is treated with UV-resistant coatings

• Performs reliably in wet, hot, or cold conditions

Longevity and Maintenance Cycle

• Low porosity ensures fewer repacks and extended service intervals

• Designed for repeat use without compromising structural integrity

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Technical Specifications: MarS WP 370 Tandem Reserve Canopy

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Who Should Use the MarS WP 370 Tandem Reserve Canopy?

This canopy is built for professional tandem instructors, military tandem operators, and commercial dropzones that demand uncompromising reliability.

Whether you’re outfitting a new tandem rig or upgrading your emergency systems, the WP 370 provides the confidence and compliance necessary for high-volume, high-responsibility skydiving operations.

Its balance of deployment speed, handling, and landing performance makes it ideal for instructors of all experience levels.

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Frequently Asked Questions (FAQ)

Is the MarS WP 370 compatible with my current tandem container?

Yes. The WP 370 is compatible with most industry-standard tandem containers. Always confirm container volume and reserve deployment system compatibility with your rigger before installation.

What makes the WP 370 different from other tandem reserves?

It offers a larger surface area, smoother opening characteristics, and higher load certification. Its zero-porosity fabric, reinforced seams, and high-speed deployment configuration separate it from smaller or general-purpose reserve options.

Does this canopy come packed or unpacked?

It is typically shipped unpacked. You must have it installed and packed by a certified FAA rigger or equivalent authority in your region.MarS WP 370 Tandem

Can I use the WP 370 for passenger training or simulation?

While it is designed as an emergency reserve, the WP 370’s flight characteristics are stable enough for simulator use in emergency training exercises. Consult your DZ safety officer for approved uses.MarS WP 370 Tandem

Is the canopy available in different sizes?

The WP 370 is optimized for tandem use and comes in a single 370-square-foot size. For other reserve options, MarS offers solo reserve models in various configurations.MarS WP 370 Tandem

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Summary: Why the MarS WP 370 Tandem Reserve Canopy Stands Out

When safety is non-negotiable, the MarS WP 370 Tandem Reserve Canopy is the answer. Combining high-speed deployment, smooth flight, and rock-solid engineering, this canopy exceeds every expectation for tandem reserve systems.

From certified flight schools to elite military units, professionals trust this canopy for its life-saving potential. It’s not just a backup—it’s a mission-critical asset designed to perform when everything else fails.

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MarS WP 370 Tandem Highlighted Product Benefits

• ✅ Large 370 sq ft canopy area for superior load support

• ✅ Zero-porosity nylon for rapid inflation and long life

• ✅ Stable glide and low sink rate for soft landings

• ✅ Certified to EM 813, TSO C23d, and EASA standards

• ✅ Reinforced for terminal velocity emergency deployments

• ✅ Smooth, symmetrical openings with minimal oscillation

• ✅ Compatible with most tandem containers and AAD systems

MarS WP 370 Tandem Safety During Flight: Confidence in Critical Moments

Engineered for Emergencies, Trusted by Tandem Professionals

When every second matters, the MarS WP 370 Tandem Reserve Canopy delivers a performance profile rooted in safety, predictability, and stability. Designed to respond in the most demanding tandem jump scenarios, it transforms life-threatening malfunctions into controlled, navigable descents.MarS WP 370 Tandem

Let’s explore the safety features that make the WP 370 a trusted solution across global dropzones.

MarS WP 370 Tandem Rapid and Reliable Deployment

• Fast Inflation: Within 2.8–3.5 seconds on average

• Deployment Velocity Range: Subterminal to full terminal speeds

• High Opening Success Rate: Even in off-heading or spinning malfunctions

Thanks to its precise panel layout and pressurized rib design, the WP 370 opens rapidly and symmetrically. It avoids radical oscillations during inflation, ensuring the canopy stabilizes quickly—no matter the direction, speed, or deployment conditions.MarS WP 370 Tandem

Exceptional Descent Control

• Low Oscillation Profile: Improves passenger stability

• Balanced Lift Distribution: Maintains symmetrical glide

• Brake Pressure Tuning: Light and progressive input for instructors

Once fully inflated, the canopy offers a consistent descent rate with smooth glide control, even at max load. Tandem instructors can initiate gentle turns or execute precise steering using minimal brake input—essential for navigating tight LZs or obstacle-rich environments.MarS WP 370 Tandem

High-Authority Flare System

• Deep Flare Range: Excellent lift at full toggle stroke

• Brake Line Redundancy: Dual-line construction with secure routing

• Hard Landings Mitigated: Lessened impact forces at touchdown

The extended flare capability ensures a cushion of lift during landing. Whether coming in downwind or experiencing unexpected turbulence, instructors retain enough authority to arrest descent speed and land safely—protecting both themselves and their tandem student.MarS WP 370 Tandem

MarS WP 370 Tandem Load-Optimized for Tandem

• Certified Load Tolerance: Up to 225 kg (496 lbs)

• Even Load Distribution: Bar-tacked reinforcements and trailing edge reinforcements

• Stress-Minimizing Design: Airfoil engineered to absorb vertical force through chord line

Unlike reserve designs repurposed from solo models, the WP 370 is structurally optimized for tandem-specific loading. It resists deformation under dynamic strain, preserving wing symmetry during hard pulls or turbulent descent paths.

MarS WP 370 Tandem Emergency Preparedness Features

• Universal Compatibility: Integrates with industry-standard AADs and RSLs

• Failsafe Construction: Triple-stitched seams with zero-porosity fabric

• Pilot Chute Assist Ready: Ensures canopy extraction even during rig interference

These built-in redundancies enhance total system reliability. Whether used with automatic activation devices (AADs), reserve static lines (RSLs), or pilot chute assists, the canopy responds as expected under all conditions—no surprises, no second guesses.MarS WP 370 Tandem

MarS WP 370 Tandem Visual and Practical Safety Markers

• High-Visibility Color Options: Improves ground and air recognition

• Reinforced Line Traces: Easy to inspect during pack jobs

• Clear Packing Sequence Markings: Reduces rigging errors

These human-centered design touches help riggers, instructors, and DZ safety officers maintain operational consistency across jumps. Fewer ambiguities mean fewer risks during preparation and flight.MarS WP 370 Tandem

MarS WP 370 Tandem Technical Specifications: Engineered for Tandem Excellence

Precision Meets Performance in Every Panel

The MarS WP 370 Tandem Reserve Canopy is more than just a backup—it’s a finely tuned safety system built to rigorous standards. Every detail, from line type to fabric tension, is purposefully designed for high-load tandem deployment scenarios. Let’s explore the canopy’s structural and aerodynamic specifications that set it apart in the reserve market.

MarS WP 370 Tandem Canopy Configuration & Construction

• Type: 9-cell rectangular canopy

• Design Purpose: Tandem reserve use

• Canopy Surface Area: 370 square feet

• Wing Loading Range: 1.0 – 1.75 lbs/sq ft

• Deployment Suitability: Terminal and subterminal

Built on a time-tested rectangular platform, the WP 370 offers stability, simplicity, and forgiving flight behavior. Its conservative shape ensures balanced lift across the span, helping maintain upright descent profiles even during dynamic deployments.

Material Selection & Reinforcement

• Canopy Fabric: Zero-porosity ripstop nylon (F-111 equivalent)

• Lines: 825 lb Spectra® or optional Vectran®

• Line Attachments: Bar-tacked reinforcement points with additional load-distribution patches

• Slider: Collapsible or standard 4-line slider (based on rig configuration)

Using zero-porosity fabric ensures long-term reliability with minimized air loss, even after repeated re-packs or prolonged storage. The lines are selected to maintain low drag while offering dependable strength under dynamic loading. Each seam and load-bearing point undergoes rigorous inspection to ensure canopy integrity during extreme events.MarS WP 370 Tandem

MarS WP 370 Tandem Deployment, Flight, and Landing Characteristics

• Deployment Speed Tolerance: Up to terminal velocity (~120–150 mph)

• Inflation Time (average): 2.8–3.5 seconds

• Oscillation Tendency: Extremely low

• Descent Rate (at max load): Approx. 5.2 m/s

• Glide Ratio: Approx. 2.4:1

• Steering Mechanism: Standard brake lines with reinforced riser attachments

• Flare Range: Extended for smooth landings under high load

The WP 370’s internal structure includes load-absorbing ribs that distribute force evenly across the span, reducing the risk of stress tears or uneven inflation. Brake settings are pre-calibrated to balance glide and descent rate—resulting in a reserve that steers intuitively and flares generously, even when you’re low and fast.

Certifications and Testing

• Certified Standard: European Aviation Safety Agency (EASA) and Czech Civil Aviation Authority

• Testing Regime: Drop-tested at full tandem load, terminal deployment, turbulent air, and partial-line feed

• Load Certification: Rated for up to 225 kg (496 lbs) total suspended weight.MarS WP 370 Tandem

Every WP 370 is subjected to stringent quality control and flight testing, performed at the MarS a.s. facility. Canopies undergo full-scale drop tests under worst-case scenarios before reaching the customer. These tests not only meet but exceed international safety regulations for tandem reserve deployment.MarS WP 370 Tandem

Pack Volume & Compatibility

• Average Pack Volume: 1250–1450 cubic inches

• Container Compatibility: Fits most industry-standard tandem systems (Strong, Sigma, Next, MarS, etc.)

• Deployment Sequence: Designed for compatibility with spring-loaded and hand-deployed pilot chutes

Packing the WP 370 is intuitive for professional riggers. Line stowage and folding procedures align with standard tandem packing protocols, reducing training burden while improving repack cycle efficiency.

MarS WP 370 Tandem Unmatched Performance: Consistency When It Matters Most

Rapid Deployment. Smooth Inflation. Total Control.

The MarS WP 370 Tandem Reserve Canopy delivers high-stakes performance precisely when lives depend on it. From the moment the reserve handle is pulled, the WP 370 responds with remarkable reliability. Its optimized deployment sequence initiates swift line stretch, followed by a crisp, controlled inflation. Even under less-than-ideal conditions, the canopy remains stable, predictable, and reassuring.

Where lesser canopies might suffer from spinning, lopsided inflations, or delayed openings, the WP 370 excels. Its precise line layout and airfoil shape work in unison to ensure rapid pressurization, restoring stability within seconds.

Built for Heavier Payloads—Without Compromise

Tandem loads demand much more than standard canopy behavior. The WP 370 meets the moment with unwavering glide consistency, even at full tandem exit weight. Because it is finely tuned for higher all-up weights, this reserve canopy delivers a descent rate that remains comfortably within safety margins—without compromising flare authority or landing control.

Glide performance remains effective across a wide range of descent profiles. Whether deployed at terminal or subterminal velocity, the canopy reacts confidently and predictably, minimizing altitude loss and maximizing directional response.

Agile Steering with Generous Flare Range

Canopy control is key—especially when altitude is limited. With the WP 370, pilots can rely on responsive toggles that allow for progressive input. Turns are clean, precise, and easily managed even when performed under stress. Steering geometry has been engineered to prevent oversteer, giving instructors more margin to correct course quickly and effectively.

Flaring power is robust, enabling smooth, stable landings with minimal ground speed. Even at heavier wing loading, the WP 370 maintains a broad, forgiving flare window, ensuring landing safety for passengers and instructors alike.

Terminal-Ready. Weather-Resilient. Mission-Critical.

In real-world conditions, not every deployment occurs in textbook circumstances. That’s why the WP 370 has been proven to perform reliably in turbulence, crosswinds, and unexpected thermal activity. Its symmetrical inflation and minimal oscillation ensure that passengers remain upright and safe throughout descent.Tandem reserve parachute

Whether facing terminal speed deployments, rapid body position shifts, or difficult terrain approaches, this canopy brings unwavering consistency. It has earned the trust of tandem professionals worldwide because it performs exactly as promised—every single time.Tandem reserve parachute

Intelligent Design: Engineered for Precision and Peace of Mind

Form Follows Function—Perfectly

The MarS WP 370 Tandem Reserve Canopy is a masterclass in aerodynamic architecture. Every detail is intentionally designed to ensure maximum performance under high-stress conditions. Crafted specifically for tandem operations, this reserve canopy merges a large surface area with advanced line geometry, producing outstanding flight characteristics during emergencies.

Unlike generic alternatives, this canopy is tailored for tandem weight loads. The square design ensures symmetrical inflation and dependable glide performance. Built from high-tensile strength zero-porosity fabric, the WP 370 preserves structural integrity even after multiple reserve deployments.

Reinforced Load Zones for Tandem Demands

In high-pressure tandem scenarios, equipment must be rugged. That’s why the WP 370 features heavily reinforced seams, V-tape construction, and load-bearing zones calibrated for maximum tensile stress. These reinforcements not only boost safety margins but also extend the service life of the canopy.

Every suspension line attachment point is stitched using high-tension bar-tack techniques. Together with its robust crossport design, the canopy exhibits consistent pressure equalization during inflation, regardless of descent velocity.

Clean Deployment, Controlled Descent

In the event of a main canopy malfunction, deployment must be flawless. The WP 370’s low-drag pack volume and optimized slider design contribute to a clean, fast, and symmetrical inflation. Even in complex body positions, the canopy recovers smoothly—offering rapid pressurization with minimal oscillation.

Instructors and riggers alike appreciate the WP 370’s intuitive packability. Despite its size, the canopy folds down predictably, saving precious seconds during repacking while maintaining optimal performance parameters.

Designed for Compatibility and Integration

Whether paired with the MarS harness/container system or another tandem rig, the WP 370 integrates seamlessly. It’s engineered to accommodate the requirements of most industry-standard reserve trays and pilot chutes. Every riser interface and bridle point aligns with common tandem hardware to ensure effortless rigging and deployment.

Frequently Asked Questions

MarS WP 370 Tandem Reserve Canopy

What is the maximum load capacity of the MarS WP 370 Tandem Reserve Canopy?

The WP 370 is certified for tandem loads up to 225 kg (496 lbs). This includes the instructor, passenger, gear, and rig system. Designed specifically for tandem jump profiles, it handles full terminal deployments while preserving wing shape and descent stability.

Is this canopy compatible with all tandem rigs?

Yes, it integrates seamlessly with most industry-standard tandem containers. Whether you’re using a Vector, Sigma, Strong, or Next container system, the WP 370 fits standard reserve trays and pilot chute configurations. Additionally, its riser and bridle lengths are tailored for optimal extraction and deployment within tandem systems.

Can the WP 370 be packed with an AAD or RSL?

Absolutely. The design is fully compatible with Automatic Activation Devices (AADs) like CYPRES, Vigil, and Mars m2, as well as Reserve Static Lines (RSLs). These safety integrations help ensure timely deployment in high-stress or unconscious-jumper scenarios.

What is the typical deployment time?

In real-world tandem conditions, the average deployment time ranges from 2.8 to 3.5 seconds. This rapid inflation is consistent across subterminal and terminal speeds, providing instructors with critical altitude preservation during emergency situations.

Does the WP 370 require a specific type of pilot chute?

No special pilot chute is required. The WP 370 is designed to deploy using standard 38″–42″ tandem pilot chutes. However, for enhanced deployment consistency, many professionals prefer to pair it with pilot chutes featuring collapsible spring-loaded systems or pilot chute assist kits.

How does the canopy handle flare and landing?

The WP 370 is engineered for a deep, responsive flare. With its extended toggle stroke and optimized trailing edge, the canopy delivers lift when it matters most—at landing. Instructors consistently report smooth, predictable landings even under full load, variable wind, or downwind approaches.

What kind of fabric and lines are used in the construction?

It features zero-porosity ripstop nylon fabric to maintain pressurization and inflation speed. The suspension lines are made of Vectran or Dacron, chosen for their low-stretch and high-durability properties under tandem-specific loading. All lines are color-coded and reinforced at attachment points for safety and packing ease.370 sq ft reserve parachute

Is this canopy certified under any international standards?

Yes, the WP 370 is EN-certified and manufactured in compliance with TPR-EU aviation safety standards. It also meets TSO-C23f guidelines when configured within a TSO-approved rig setup. Each canopy comes with a unique serial number and traceable inspection records.370 sq ft reserve parachute

How often should the WP 370 be repacked?

Repacking intervals depend on local regulations, but most countries recommend or require repacking every 180 days (6 months). Because it’s a reserve canopy, repacking must be done by a certified rigger, and all deployment components should be visually inspected at that time.370 sq ft reserve parachute

Can the WP 370 be used for student tandem training?

Yes, and it’s an excellent choice for tandem training operations. The canopy’s predictable glide path, low oscillation rate, and easy-to-manage brake pressure make it ideal for both high-volume dropzones and specialized training centers. Students experience smoother deployments and landings, which contributes to greater confidence and comfort.

What happens if the canopy is deployed off-heading or spinning?

The WP 370’s design includes stabilized ribs, a strong central airfoil spine, and balanced line tension, which collectively mitigate off-heading inflation and reduce spin continuation. It rapidly returns to forward flight without requiring aggressive input, enhancing safety during complex malfunctions.Tandem skydiving canopy

Is the WP 370 suitable for use in high-altitude tandem jumps?

Yes. Because of its fast inflation rate and reliable performance across various speeds, the WP 370 performs reliably in high-altitude tandem jumps, including HALO scenarios. However, deployment should always be initiated with ample altitude to allow full inflation, especially in high-speed, high-thin-air conditions.Tandem skydiving canopy

How long is the lifespan of the canopy?

With proper maintenance and storage, the WP 370 can be used for up to 15 years, depending on environmental exposure and frequency of use. However, it should undergo regular inspections after every deployment and be replaced immediately if there are signs of fabric degradation, seam wear, or line damage.Tandem skydiving canopy

Where is the WP 370 manufactured?

Every unit is proudly manufactured in the Czech Republic by MarS a.s., a leading global brand in precision-engineered skydiving safety systems. The company holds ISO 9001 certification, ensuring top-tier production standards.Tandem skydiving canopy