Advance STRAPLESS BI 3
£300.00
Description
Advance Strapless BI 3 Ultralight Tandem Harness
Redefining Lightweight Tandem Adventure
Flying tandem doesn’t have to mean compromising on comfort, weight, or simplicity. The Advance Strapless BI 3 Ultralight Tandem Harness sets a new benchmark in minimalist tandem flight gear. Engineered for hike & fly adventures and alpine expeditions, it seamlessly merges ultralight materials with supreme functionality.advance strapless bi 3 ultralight tandem harness
With each element thoughtfully designed, this harness delivers everything professional tandem pilots and hike & fly enthusiasts expect: durability, ease of use, compact packing, and flight comfort. Whether you’re soaring over cliffs or hiking to remote summits, the Strapless BI 3 ensures that your tandem flights are efficient, safe, and liberating.
advance strapless bi 3 ultralight tandem harness by Design, Purpose-Built for Tandem
Minimal Weight, Maximum Strength
Advance has poured its decades of innovation into the Strapless BI 3 to deliver an ultralight tandem harness that doesn’t skimp on safety or performance. Weighing in at just 1.8 kg, the Strapless BI 3 shatters traditional expectations of tandem equipment. Yet, despite its astonishing weight class, it offers the rugged strength needed for dependable tandem flying.
Moreover, its Dyneema webbing frame reinforces load-bearing zones, offering a reassuring ride even on extended flights. In tandem, every gram counts—this harness helps you travel lighter and farther without compromising on structure or safety.
Hike & Fly Efficiency
As hike & fly evolves from niche to mainstream, tandem pilots require gear that supports long ascents as well as soaring descents. The Advance Strapless BI 3 Ultralight Tandem Harness was engineered to fold into an unbelievably small volume, fitting easily into compact tandem rucksacks.advance bibeta 7
With clever weight distribution and intuitive packing features, the harness adapts to mountain adventures and high-efficiency bivy flying. Now, even remote peaks can be shared with your passenger.advance clothing
Core Features That Elevate Your Tandem Game
Let’s unpack the specific advantages of this game-changing tandem harness:
✅ Ultralight Tandem Performance
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Total weight: 1.8 kg
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Ideal for alpine tandem hike & fly missions
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Dyneema structure ensures exceptional strength-to-weight ratio
✅ Compact and Portable
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Extremely small packed volume for optimized transport
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Easily fits in ultralight hike & fly backpacks
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Simple unroll-and-go design
✅ Ergonomic Comfort
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Designed with both pilot and passenger ergonomics in mind
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Stabilized seating position for long flights
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Minimalist design still allows for extended hang time without fatigue
✅ Simplified Buckling System
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Color-coded buckles and straps for faster pre-flight setup
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Easy leg and chest strap configuration
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Seamless tandem preparation on uneven terrain
✅ Compatibility with Multiple Gliders
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Works smoothly with a wide range of tandem wings
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Synergizes especially well with ultralight tandem gliders
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Enables cohesive performance from launch to landing
✅ Durability Meets Innovation
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Reinforced stress zones prevent material fatigue
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UV-resistant exterior components
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Thoughtfully selected ultralight fabrics resist wear without adding weight
✅ Emergency-Ready Attachments
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Optional front container for rescue systems
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Harness structure supports clean deployment paths
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Simplified rescue connection points for stress-free rigging
Smart Construction and Purposeful Engineering
Dyneema Webbing Architecture
One of the Strapless BI 3’s most innovative upgrades lies in its ultra-strong Dyneema construction. This high-tech material, revered for its exceptional tensile strength and low stretch, replaces traditional bulkier webbing. Therefore, the harness gains strength without weight penalties. Notably, Dyneema also resists moisture and UV degradation, increasing long-term performance and flight safety.
Color-Coded Setup
Efficiency matters most during alpine takeoffs or quick mountain launches. That’s why Advance engineered a color-coded attachment system to eliminate guesswork during rigging. The leg loops, chest strap, and riser connections are clearly marked—helping both experienced pilots and newcomers set up confidently and safely in mere seconds.
Seamless Integration with Tandem Accessories
Advance understands the diversity of tandem pilot needs. Whether you’re flying professionally or recreationally, the Strapless BI 3 offers full compatibility with optional accessories including the Advance Tandem Reserve Front Container, as well as light helmets, radio holders, and cockpit mounts.
Additionally, rear cargo pouches and hydration bladder sleeves can be added without bulk, supporting longer flights or high-mountain bivouac operations.
advance strapless bi 3 ultralight tandem harness Built for Alpine Environments
Designed for Rugged Terrain
In demanding environments where space and weight savings are paramount, the Advance Strapless BI 3 performs flawlessly. Every aspect, from the slim shoulder profiles to the minimalistic frame, prioritizes packability and alpine mobility. Hike to the launch with ease, then launch into thermal-laced skies without needing to change your harness configuration.advance strapless bi 3 ultralight tandem harness
advance strapless bi 3 ultralight tandem harness Ideal for Professional and Recreational Tandem Pilots
Advance made sure the Strapless BI 3 appeals to all tandem pilot profiles. Professionals looking to offer hike & fly tandem experiences will appreciate the time-saving setup, quick pack-down, and confidence-inspiring materials. Meanwhile, recreational pilots find joy in the intuitive feel and seamless passenger experience—even when venturing into unfamiliar or high-altitude zones.advance strapless bi 3 ultralight tandem harness
Technical Specifications: At a Glance
| Feature | Details |
|---|---|
| Weight | 1.8 kg |
| Packing Volume | Ultra-compact roll-up |
| Rescue Compatibility | Optional front container |
| Material | Dyneema webbing |
| Use Case | Tandem Hike & Fly, Alpine |
| Passenger Comfort | Stabilized seating geometry |
| Certification | EN-certified structure |
Mastering Tandem Hike & Fly: Tips for Success
✔ Prepare Smart
Always double-check your harness connections and reserve compatibility before heading to the hills. Though the Strapless BI 3 speeds up pre-flight procedures, never skip safety verifications.
✔ Match with the Right Wing
Pair this harness with a lightweight tandem glider for optimal flight dynamics. Consider Advance’s PI BI or similarly compact models for the perfect hike & fly setup.
✔ Practice Ground Handling Together
Before launching from narrow summits or alpine ridgelines, rehearse ground control in safe conditions. Coordination with your tandem passenger will enhance launch success and mutual confidence.
✔ Don’t Skip Safety Briefings
Regardless of experience level, give every passenger a thorough safety rundown. Use visual demos to explain leg loops, emergency procedures, and posture during flight.
Caution During Tandem Flights
While the Advance Strapless BI 3 Ultralight Tandem Harness offers outstanding performance, it’s essential to observe all safety practices during flight. Avoid overloading beyond certified weight. Regularly inspect all attachment points and structural seams. Never fly tandem in turbulent or thermally unstable air unless both pilot and passenger are fully prepared and confident in the equipment.strapless strap on
Even ultralight setups like this require strong situational awareness. Always prioritize safe takeoff and landing zones, and remain weather-conscious throughout the adventure.strapless strap on
Why Choose the Advance Strapless BI 3 Ultralight Tandem Harness?
This isn’t just another tandem harness—it’s a strategic upgrade to your flying lifestyle. Whether you’re guiding clients to high-altitude vistas or sharing magical descents with a friend, this harness enhances every part of the journey.
By combining featherlight construction with flight-tested reliability, the Advance Strapless BI 3 represents the future of tandem flying. Moreover, it removes the obstacles that bulkier gear introduces—making tandem adventures more spontaneous, more portable, and far more rewarding.advance strapless bi 3 ultralight tandem harness
Advance STRAPLESS BI 3 ULTRALIGHT TANDEM HARNESS
There is also a STRAPLESS 3 version for tandem pilots. The STRAPLESS BI 3 is EN-certified and has a reserve container under the right hand legpad. With reserve handle and container the STRAPLESS BI 2 weighs only 420 gms. This ultralight tandem pilot harness is intended exclusively for extreme Hike and Fly use and has no protector.advance pi 3
TECHNICAL DATA
| STRAPLESS BI 3 | M | |
|---|---|---|
| Pilot height | cm | 155-190 |
| Chest strap width | cm | 42 |
| Harness weight | kg | 0.420 |
| Weight carabiners | kg | 0.044 |
| Harness certification | EN 1651:2018+A1:2020 / 110 kg |
MATERIALS
| Main straps | D-Pro, 4mm, 13 kN |
|---|---|
| Leg straps | D-Pro, 4mm, 13 kN |
| Seat area | Nylon 40 BE – DE Ripstop, 57 g/m2 |
| Carabiner | MR Standard 5mm, 22.5kN, 21gr. |
SCOPE OF DELIVERY
2x Maillon Rapide





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🪂 Mastering How to Fly with the Advance Strapless BI 3 Ultralight Tandem Harness
Build Confidence, Elevate Control, and Embrace Tandem Freedom
Flying with the Advance Strapless BI 3 Ultralight Tandem Harness is not just about saving weight—it’s about unlocking a whole new level of adventure, skill, and partnership in the sky. Whether you’re a pilot transitioning into hike & fly tandem missions or a seasoned pro upgrading your gear, mastering flight with this minimalist harness requires practice, awareness, and purpose-driven technique.advance strapless bi 3 ultralight tandem harness
Below is your step-by-step guide to mastering tandem flight using the Strapless BI 3.
✈️ Step 1: Understand the Harness Dynamics
Know What You’re Working With
The Strapless BI 3 is different from traditional tandem harnesses. Its ultralight structure means:
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Closer feedback between pilot and passenger
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More sensitive weight shifts
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Less passive damping
This design rewards precise piloting and encourages a stronger connection to the glider and your flying partner.
Practice Setup on the Ground
Before ever launching, become intimately familiar with:
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Leg and chest strap adjustments
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Passenger harness compatibility
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Color-coded buckling systems
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Reserve installation and routing (if used)
🎓 Pro Tip: Practice setting up the full system with your passenger on flat ground at least five times before your first high launch.advance bibeta 7
🏃 Step 2: Perfect Your Ground Handling
Tandem Ground Skills = Flight Success
Great tandem flights start on the ground. Practice forward and reverse inflations while clipped in to the actual harness.
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Use a light tandem wing that complements the ultralight feel
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Practice in smooth wind (~10–15 km/h) to learn energy control
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Train both solo and with a passenger to feel center of gravity shifts
Passenger Coordination Drills
Have your passenger simulate:
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Launch running posture
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Seated transition timing
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Weight distribution awareness
🤝 Tip: Use radios during practice to reinforce timing and communication.
🌄 Step 3: Launch With Intention
Choose the Right Conditions
With a minimalist harness, environmental awareness is critical.
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Select clean, gentle takeoff zones
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Favor laminar wind over gusty thermals
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Opt for wide runways that allow full passenger-pilot coordination
Execute a Clean Launch
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Final gear check (leg straps, buckles, rescue handle)
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Position your passenger slightly forward
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Inflate the wing with both moving in sync
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Don’t sit too early—run all the way into lift
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Transition smoothly into seated flight together
⛰️ Important: Never rush a tandem launch. Abort if either pilot or passenger feels unsure.
🧭 Step 4: Master In-Flight Coordination
Embrace Dynamic Balance
The BI 3’s geometry allows freedom of movement, but requires finesse. Focus on:
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Smooth brake input
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Stabilized seating posture
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Coordinated weight shifts (especially in turns)
advance strapless bi 3 ultralight tandem harness Communicate Constantly
Whether using a headset or simple hand gestures:
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Ask your passenger how they feel
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Announce maneuvers before you execute them
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Point out thermals, views, or turbulence ahead
🗣️ Pro Tip: Narrate your flight—it keeps your passenger informed and calm.
🛬 Step 5: Land Like a Pro
Scout LZs in Advance
With hike & fly, your landing zone may not be ideal. Prepare to:
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Land uphill if needed
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Avoid small obstacles or bushes
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Use a gentle final glide path to maintain margin
Flare Timing Matters
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Begin rounding out early
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Communicate the landing process
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Execute a strong, even flare at knee-height
💡 Both feet down, knees slightly bent, and eyes on the horizon = soft landings.
💼 Bonus: Fine-Tune Your advance strapless bi 3 ultralight tandem harness
Match Your Wing and Harness
The BI 3 shines when paired with lightweight tandem gliders like:
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Advance PI BI
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GIN Yeti Tandem
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Niviuk Takoo Light
This pairing maximizes performance and minimizes weight without sacrificing control.
Add Strategic Accessories
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Use lightweight tandem spreaders for better riser spacing
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Carry a radio or comms system
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Optional front reserve container for complete safety
🎒 Keep your total system light, simple, and field-configurable.
💬 advance strapless bi 3 ultralight tandem harness Mastery Recap: Key Takeaways
✔ The 5 Pillars of Mastery
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Ground handling – Build control, muscle memory, and wing awareness
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Passenger preparation – Coach and communicate before takeoff
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Smart launches – Choose great conditions, commit fully
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In-flight synergy – Fly together, balance together
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Precision landings – Glide in with grace, communicate during descent
🚀 advance clothing Ready to Fly Like a Pro?
Mastering flight with the Advance Strapless BI 3 Ultralight Tandem Harness is about more than equipment—it’s about intention, connection, and growth. With every hike, takeoff, and shared descent, you’ll build trust in your skills, deepen your flying intuition, and open up limitless possibilities in tandem adventure.advance pi 3
🛡️ Safety Guide for the Advance Strapless BI 3 Ultralight Tandem Harness
Stay Safe. Fly Confidently. Share the Sky Responsibly.
The Advance Strapless BI 3 Ultralight Tandem Harness is engineered for performance, but safe tandem flight depends just as much on your preparation, decision-making, and attention to detail. This safety guide outlines best practices to help you fly securely, protect your passenger, and fully enjoy your hike & fly tandem adventures.
✅ Pre-Flight Preparation
1. Thorough Harness Inspection
Before every flight, inspect the harness—especially if it has been in storage, exposed to moisture, or used in rugged terrain.
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Check webbing and buckles for signs of abrasion, wear, or fraying
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Inspect seams and stitching in high-load areas
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Verify reserve container compatibility (if used)
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Ensure passenger attachment points are secure and untangled
🔧 Tip: Monthly visual inspections and annual professional checks are highly recommended for regular tandem pilots.
2. Passenger Briefing and Positioning
Even experienced passengers need a clear briefing before launch. The tandem environment introduces dynamics unfamiliar to solo pilots or casual flyers.
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Explain the strap system, including leg loops and chest connections
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Demonstrate proper seated posture during flight
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Instruct on takeoff/landing posture: run with the pilot, remain upright until airborne
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Review emergency procedures: reserve deployment, landing signals, or stop commands
🧠 Tip: Use easy-to-understand language and physical demonstrations when briefing beginners.
3. Correct Setup and Secure Connection
The color-coded buckling system on the Strapless BI 3 is a time-saving safety innovation—but don’t rush.
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Attach and tighten all straps: leg loops, shoulder straps, and chest belts
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Double-check carabiner locks before final riser connection
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Use certified tandem spreaders suitable for ultralight harness structures
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Avoid tangled risers or twisted brake lines before clipping in
✅ Perform a full pre-launch buddy check, including a gentle lift test to verify load integrity.
✅ Launching Safely
1. advance pi 3 Choose the Right Site
Tandem hike & fly often involves challenging terrain. Only launch when all site conditions meet your skill level and gear capability.
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Avoid steep, technical launches if you or your passenger are not fully confident
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Check wind direction and strength: smooth, laminar conditions are ideal
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Ensure adequate runway for tandem takeoff run
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Clear the area of rocks, roots, or debris
📏 Maintain a 3:1 ratio between launch slope and required speed—more margin is better for tandem.
2. Synchronize the Takeoff Run
Uncoordinated launches can lead to immediate failure or injury.
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Verbally count down before starting the run
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Stay connected and centered during the run phase
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Keep your hands free from brake toggles until fully airborne
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Ensure both pilot and passenger commit to the launch—no sitting down early!
🏃 Tip: Practice tandem forward and reverse launches in mellow conditions before attempting on big hikes.
✅ In-Flight Considerations
1. Maintain Balanced Flight
The Strapless BI 3 offers ergonomic tandem seating, but pilot input is still critical.
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Trim the glider appropriately to avoid pitch instability
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Use smooth brake inputs to prevent oscillations
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Communicate with your passenger about any shifts in posture or movement
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Avoid aggressive thermaling with nervous passengers
🌬️ Tip: For maximum stability, stay well within the certified weight range of both wing and harness system.
2. Monitor Altitude and Weather
In the mountains, conditions can change fast.
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Set altitude decision points for landing or turning back
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Watch for signs of overdevelopment or incoming winds
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Avoid lee-side flying, rotor zones, or cloud suck
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Stay visible—use high-visibility clothing or wing accents
⏱️ Always carry a variometer and a backup altimeter for tandem flights.
✅ Landing with Precision and Control
1. Prepare Early
Begin setting up for landing with plenty of altitude and margin for error.
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Choose a large, obstacle-free LZ suitable for tandem
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Brief the passenger again on proper leg-down posture and timing
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Slow the glider smoothly, keeping enough energy for flare
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Flare confidently at the right moment to ensure soft contact
🦵 Both pilot and passenger should have feet out and knees slightly bent before touch-down.
2. Emergency Landings
Always have a Plan B.
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Pick an emergency LZ ahead of time in case of sink or wind shift
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Communicate clearly with your passenger if diverting
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Execute a safe, straight-line glide to the backup LZ—don’t panic
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Prepare for a PLF (Parachute Landing Fall) if terrain is uneven
🛬 Tip: If conditions deteriorate, landing early is never the wrong decision.
✅ Reserve Deployment Safety
If using the optional front rescue container, follow these best practices:
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Ensure clean, tangle-free routing during setup
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Practice deployment simulations on the ground
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Brief passengers not to interfere with deployment handle
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In case of emergency, deploy quickly and decisively—don’t wait too long to act
🪂 Tip: Reserve drills in a simulator or over-water SIV course are ideal for boosting emergency confidence.
✅ Post-Flight Protocol
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De-brief your passenger, especially if they’re new
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Inspect the harness again, especially after hard landings
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Air-dry the gear fully if exposed to moisture
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Roll and store the harness correctly to prevent material stress
📦 Storing the harness in a dry, shaded location extends its lifespan and maintains performance.
✅ Essential Safety Reminders
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✖ Never exceed the weight limits of the harness or glider
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✖ Do not use non-compatible tandem spreaders or risers
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✖ Avoid flying tandem in turbulent, rotor, or stormy conditions
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✖ Don’t skip passenger briefings—communication saves lives
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✖ Never fly injured, fatigued, or under the influence of substances
🧠 Final Word: Respect the Mountain, Respect the Passenger
The Advance Strapless BI 3 Ultralight Tandem Harness empowers pilots to share their passion for flight in some of the world’s most remote and beautiful places. However, ultralight tandem flight introduces unique challenges—and responsibilities.
By following this safety guide, you dramatically reduce risks while enhancing every aspect of the tandem experience—for both yourself and your flying partner. Stay sharp, stay aware, and most of all, enjoy the freedom of flying together.
Additional information
| Size | Medium, Large, Small |
|---|





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