Solving the biggest problem with small RIBs

In this interview, designer Espen Thorup explains the ideas behind the modular layout, unexpected bow design and subtle details shaping your on-board experience.

People use a 5-metre RIB in very different ways.


For some, it is a simple boat for quick trips from the summer house. For others, it becomes a social platform for sunny afternoons on the water. Some want maximum storage. Others want comfort and sunbathing space.


Traditionally, small RIBs offer little flexibility in how you configure your boat. The Nordkapp Airborne 5.4 was designed to avoid that compromise.


We asked our designer Espen Thorup to explain the thinking behind the boat — starting with the design decision that shaped our smartest RIB to date.

 

Images may contain details not featured in the final product.

An early draft of the versatile aft area and the playful hull.

Espen, when you started the Airborne 5.4 project, what did you feel small RIBs were still getting wrong?

 

“Compared to other boat types, RIBs usually offer fewer layout options. This is especially noticeable when buying a small RIB, making it harder for you as a customer to choose the right boat for your lifestyle.


“We wanted to design a boat that adapts to the owner — not the other way around.


“The idea came from Nordkapp's philosophy of putting ourselves in the user's place. People use a 5-metre RIB in many different ways. Some want a light and simple boat for the summer house. Others want more comfort, more equipment, and a more refined experience.


“So the challenge was to create a platform that could do both. The design decision that shaped the Airborne 5.4 was to make it modular, allowing you to choose from different layouts when ordering. You can get a very clean, practical setup or a more exclusive version with additional comfort.


“This flexibility makes the 5.4 well-suited for both Scandinavian and international markets."


Flexibility was a key part of the story. But it would not be a Nordkapp without a joyful driving experience.

An early render showing details that make this boat fun and easy to drive.

The moment you take the helm on the Airborne 5.4

 

“The first thing I want you to notice is how natural everything feels.


"Driving comfort lies in the details. Where your hands fall on the wheel. How easily you can reach the throttle. How your body is supported when the boat begins to move faster. If those things are not right, you feel it immediately. So the goal was to make sure everything is exactly where you expect it to be.”

 

Suitable for drivers of all levels


“When you take the helm, you should feel that this is a serious performance RIB. The driving position is secure, the ergonomics support you properly at speed, and the boat responds in a way that feels controlled.


“That confidence is important.


“The sharp 23-degree V-hull cuts through the water smoothly, increasing comfort in rough conditions. The non-stepped hull also makes the boat easier to drive. Compared to a stepped hull, the boat becomes more forgiving, allowing you to drive more naturally without overthinking. The boat feels predictable and delivers grip when you need it.


“Combined with the asymmetric tubes, the 5.4 delivers a safe and sporty driving experience.”


We did something unusual for the bow.

An early sketch shows the extended waterline, which makes this RIB feel like a larger boat. At this stage, the prototype was referred to as the 5.3.

A bow design we almost never choose

 

“Normally, we would not choose a straight bow. On most boats it brings compromises. But on a compact RIB like the 5.4, it made too much sense to ignore.


“The main reason is the waterline.


“By extending the bow forward, we were able to stretch the boat's waterline. That small change has a big effect for such a compact boat. The 5.4 begins to behave like something larger, offering a more planted, confident ride than you would normally expect from a RIB of this size. You also benefit from slightly more storage space up front, which makes a difference on a design like this, where every centimetre counts.”

 

Why it works


“Of course, a straight bow normally comes with a drawback. On many boats, the bow can be exposed when approaching a dock bow-first. But the nature of a RIB allowed us to solve that problem.


“The tubes wrap around the bow, providing natural protection. When you’re docking bow first, it is the tube that takes the contact, not the fibreglass structure behind it. So what might be a vulnerability on another type of boat becomes an advantage here.


“It is one of those design decisions where the RIB concept enabled us to do something that would not normally be possible.”


Designing the Airborne 5.4 was no easy task.

Every detail on the Airborne 5.4 is carefully considered.

The greatest design hurdle on the Airborne 5.4

 

“The biggest challenge is always space.


“I have to solve user problems before they happen. The challenge on a small boat is to fit all the functions needed.


"Take the bow cushions, for example. On small boats, cushions often become something you have to move around or store at home. This makes boat ownership less enjoyable. On the 5.4, we ensured you have dedicated storage for all bow cushions onboard.


“These kinds of features make owning the 5.4 a trouble-free experience.


“We also added another layer of complexity by making this boat modular, meaning the same space had to work in several different ways. That is much harder to design than a fixed layout.


“You cannot simply add modules afterwards. The entire boat has to be designed around that flexibility from the beginning. So the challenge was not only fitting everything into a compact hull. It was making sure that no matter how you configure the boat, it still feels intuitive, spacious, and comfortable to use.”


Yet some of the most thoughtful work on the Airborne 5.4 is almost invisible.

The foldable windscreen is a first on a Nordkapp RIB. On an early drawing, the boat was called the 5.3.

Which hidden details are you most proud of?

 

“There are quite a few details on this boat that people won't notice at first. But those are often the details that matter the most once you start using the boat regularly.


“One example is the foldable windscreen, which is a first on a Nordkapp RIB. By releasing a compression lock at the front, the windscreen folds down. This reduces the boat's overall height, making it easier to store on a trailer in a standard garage. It also makes the inside of the windscreen easier to clean, which can otherwise be difficult to reach.


“We also spent a lot of time thinking about how the boat behaves in rough water. The console and driver seat are shaped to keep both the driver and passenger firmly in place when conditions become challenging. Small ergonomic details like this make a big difference when you’re actually driving the boat.

 

Invisible solutions


“Some solutions are almost invisible. The handles on the tubes are positioned so they work both as secure hand grips and as cleats for mooring lines, without creating unnecessary wear on the tube fabric. At the bow, the cleat also works as a guide for the anchor rope, again avoiding friction against the tubes.


“And then there are practical details that make ownership easier over time. The tubes sit above the waterline when the boat is docked, reducing marine growth and simplifying maintenance.


“None of these details are dramatic on their own. But together they shape the everyday experience of owning and using the boat. That is something we spend a lot of time thinking about during the design process.”

Espen tried many different design concepts for this RIB; not all made the final cut. Here it was called the 5.5.

In just three words, how would you describe the Airborne 5.4?

 

“Seaworthy. Safe. Premium.”

Ready to make this summer count aboard Nordkapp’s smartest RIB yet?

Request an offer on the Nordkapp Airborne 5.4.