Is the Starboard All Star Inflatable as Fast as a Carbon Hardboard?

For dedicated racers, fitness paddlers, and traveling athletes, the ultimate goal is achieving maximum hull speed. For years, the gold standard has been undisputed: if you want to win races or set personal records, you ride a 14-foot composite carbon fiber hardboard. Hardboards offer perfectly sharp water-release edges, complex bottom concaves, and absolute rigidity.

However, traveling with a rigid 14-foot board is a logistical nightmare involving expensive airline oversize fees and vehicle roof rack restrictions. This friction has led many high-performance paddlers to ask: Can an inflatable race board like the Starboard All Star Airline truly rival the speed of a full-carbon race machine?

To answer this objectively, we have to look directly at real-world GPS velocity data, structural deflection metrics, and the advanced hydrodynamics Starboard uses to narrow the gap between inflatable convenience and hardboard performance.

The Speed Data: What the Testing Shows

When subjected to controlled flat-water testing, the raw speed difference between a premium carbon race board and the Starboard All Star Airline inflatable is surprisingly narrow.

• Top Sprint Speed: A $4,000+ elite full-carbon hardboard typically hits a top sprint speed of roughly 8.3 mph (13.36 km/h). In comparison, the 14’0″ All Star Airline inflatable hits a top sprint speed of 7.4 mph (11.91 km/h).

• Average Cruising Speed: Over a sustained distance on flat water, the gap shrinks even further. A carbon hardboard maintains a steady cruising average of roughly 6.54 mph, while the All Star Airline holds an average of 6.6 mph—meaning their long-distance cruising efficiency is virtually identical.

While a carbon hardboard retains a slight edge in pure, explosive acceleration off the starting line, the data proves that on flat water, the Starboard All Star Airline claws back nearly all the performance traditional inflatables lose.

FLAT-WATER SPEED METRICS
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| CARBON HARDBOARD (SPRINT TOP SPEED)        | 8.32 mph     |
+-----------------------------------------------------------+
| ALL STAR AIRLINE ISUP (SPRINT TOP SPEED)   | 7.38 mph     |
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| CARBON HARDBOARD (SUSTAINED GLIDE)         | 6.54 mph     |
+-----------------------------------------------------------+
| ALL STAR AIRLINE ISUP (SUSTAINED GLIDE)    | 6.60 mph     |
+-----------------------------------------------------------+

How Starboard Claws Back the Speed Deficit

A standard inflatable board loses speed because it lacks structural stiffness and has rounded, sticky rails that drag in the water. Starboard bypasses these structural limitations on the All Star Inflatable using three specific engineering breakthroughs:

1. Patented Airline Cable Technology & Quick Tension System

To combat longitudinal flex without adding heavy plastic layers, Starboard runs a free-floating, high-tensile aramid cable along the bottom of the hull. This cable is fixed at the nose, passes under the center stringer, and terminates at the fin box.

When the board is inflated to its recommended 18 PSI, the hull expands and forces this pre-set aramid cable under massive tension. This acts exactly like a structural bowstring, reducing overall hull deflection by 1.8 cm in standardized load testing. This rigid architecture gives the board a crisp “reflex sensation,” transferring your paddle energy directly into forward acceleration rather than hull flex.

2. Integrated Carbon Fiber Stringers

Supplementing the aramid cable, the All Star Deluxe features twin carbon stringers on the deck and a center carbon stringer on the hull. These carbon bands act as rigid, low-stretch structural spines that lock in the rocker profile, preventing the nose from pushing or pushing water during aggressive, high-cadence paddle strokes.

3. Hydrodynamic Tail Release Edge

A major speed drag on traditional inflatables is the rounded tail rail, which allows water to wrap around and cling to the stern, creating a turbulent suction brake. Starboard eliminates this drag by integrating a sharp, flush-mounted Silicon Release Edge around the tail. This allows water to cleanly shear off the back of the board, maximizing glide per stroke and mimicking the hydrodynamic water release of a composite board.

+-------------------------------------------------------------+
|                TAIL WATER DYNAMICS                          |
+-------------------------------------------------------------+
| ROUNDED PVC RAIL (BUDGET iSUP)  ==> Water clings = Heavy Drag|
+-------------------------------------------------------------+
| SILICON RELEASE EDGE (STARBOARD)==> Water shears = Clean Glide|
+-------------------------------------------------------------+

4. Recessed EVA Standing Trays

To help you maintain stability on narrower, faster race outlines (such as the 24.5″ or 26″ widths), Starboard builds flexible EVA Standing Trays with high side walls into the deck. This provides a slightly dug-out standing area, lowering your center of gravity and letting you wedge your feet against the outer rails for superior balance recovery and aggressive power application during hard sprints or tight buoy turns.

Where the Carbon Hardboard Still Wins

While the All Star Inflatable matches carbon-fiber speed on flat lakes and calm estuaries, a rigid composite hull still holds a clear advantage in two specific open-water scenarios:

• Upwind Punching: A hard carbon nose can be molded into complex, ultra-sharp vertical prows that slice directly through chop. An inflatable nose, by nature of air pressure, remains slightly more rounded and will bounce more when striking steep head-chopped waves.

• Downwind Ocean Glides: Hardboards feature intricate bottom concaves and sharp, molded rails that make it easier to catch, steer, and stay locked into fast-moving ocean swells.

Summary

If your goal is Olympic-level podium racing where fractions of a second matter, or heavy open-ocean downwinding, a full-carbon hardboard remains the definitive choice. However, if you are a traveling racer, an aggregate fitness paddler, or a training enthusiast who wants 95% of a hardboard’s flat-water speed combined with the unmatched convenience of packing your race board into a checked-luggage rolling bag, the Starboard All Star Airline completely changes the game.