Not all questions in the German boating license exam are equally hard. Some questions are answered incorrectly by almost half of all candidates – even though they’re manageable with the right preparation. Let’s look at which questions have the highest error rates and how you can crack them.

How hard is the SBF exam really?

According to the DMYV and DSV, the failure rate for the boating license averages around 10–15% in the theory exam and roughly 5% in the practical exam. The SBF Coastal has a slightly higher failure rate than the SBF Inland – mainly because of the navigation task.

For comparison: around 39% fail the car driving license theory exam. So the boating license is significantly more manageable – if you know the stumbling blocks.

SBF Coastal: the questions with the highest error rate

No. 1: Strong wind warning (error rate ~39%)

“For which wind forces is a strong wind warning issued?”

Correct answer: Wind force 6 and 7 on the Beaufort scale.

Why so hard? Many confuse the strong wind warning with the gale warning (from wind force 8). The distinction is:

  • Strong wind warning: wind force 6–7 Bft
  • Gale warning: from wind force 8 Bft

Tip: Memory aid: “Six and seven – still strong, eight and more – the gale comes along.”

Focus: specific coastal questions

Of the 72 basic questions, only a single one appears in the top 30 hardest SBF Coastal questions. The remaining 29 come from the 213 specific coastal questions. This shows: the coastal-specific topics are the real sticking point.

The hardest topic areas in the SBF Coastal:

Topic areaWhy it’s difficult
MeteorologyConfusion of strong wind/gale, Beaufort scale details
Navigation lightsMany combinations, similar configurations
Sound signalsConfusion of patterns (long/short)
Buoyage & sea marksLateral system vs. cardinal system
NavigationConversion rwK/mwK/MgK, signs

SBF Inland: the toughest questions

No. 1: Sailing questions (error rate up to ~48%)

The hardest SBF Inland question concerns trim errors on a dinghy on close-hauled courses – with an error rate of around 48%. Almost every second candidate answers it incorrectly.

Why? The sailing questions (47 questions in the catalog) are generally the hardest in the SBF Inland. Anyone who takes the SBF Inland under engine only doesn’t have to answer the sailing questions. But anyone who adds the sailing scope should practice this topic block especially intensively.

The typical problem areas in the SBF Inland

Topic areaSource of error
Sailing questionsTrim, courses to the wind, sailing maneuvers
Inland navigation lightsDifference from coastal lights
Navigation rulesInland vs. coastal give-way rules confused
Inland sound signalsDifferent meanings than at sea

Why these questions are so often answered incorrectly

There are three main reasons why certain questions have high error rates:

1. Risk of confusion

Many questions have answer options that differ only in details. With navigation lights and sound signals there are dozens of similar combinations. Anyone who only roughly knows what a signal looks like quickly picks the wrong option.

2. Mixing up inland and coastal rules

Anyone learning both licenses at the same time easily confuses inland rules with coastal rules. Example: sound signals sometimes have different meanings on inland waterways than at sea.

3. Rarely practiced edge-case questions

Some questions concern specialized knowledge that rarely comes up in everyday life – such as details of the Beaufort scale or specific regulations for certain vessel types. Anyone who only learns the main topics stumbles over these edge cases.

How to avoid the typical mistakes

Exam simulation under real conditions

Don’t just practice individual questions, but complete exam papers with a time limit. Most confusion mistakes happen under time pressure – and that’s exactly what you can train.

Use mistake training

Instead of repeating all questions evenly, focus specifically on the questions you answered incorrectly. The Boatpass app automatically flags your mistakes and trains exactly those questions more often.

Learn topic areas separately

Don’t learn navigation lights together with sound signals – that increases the risk of confusion. Work through one topic block before moving on to the next.

For the combined exam: don’t learn inland and coastal mixed together

If you’re doing both licenses at the same time, separate the learning phases. One week coastal, then one week inland – not both on the same day.

Conclusion

The hardest SBF questions in the SBF Coastal exam questions mainly concern meteorology, navigation lights and sound signals – in the SBF Inland exam questions it’s the sailing questions. The error rates (up to 48%) show that even committed candidates fail on certain questions. The key: targeted mistake training instead of blindly repeating all questions. In the Boatpass app, exactly the questions you don’t yet have a firm grasp of are prioritized.