HMBC - competition classes

Competition Classes

Static scale models

Non-working models are gathered in the C-classes with the next different catagories:

C1 -- Complete schips , with sails or manpower driven (for example with oars).
C2 -- Complete schips , originally driven by mechanical power , for example motor or steamengine.
C3a - Scenes, complete fleet , harbours en schipyards.
C3b - Complete ships , but not painted.
C3c - Open-worked schips , opened deck , section.
C3d - Parts of a ship , such as guns, deckhouses , masts , winches, etc.
C4a - Miniature modells of sailing ships (scale 1 : 250 or smaller).
C4b - Miniature modells of mechanical driven schips (scale 1 : 250 or smaller).
C4c - Miniature modells of parts of a ship (scale 1 : 250 or smaller).
C5 -- Ships in bottles.
C6 -- Plastic kits (Revell - Airfix - Heller - etc.).
C7 -- Paper / cardboard constructionplates.

During competitions there is a judgement of the way the model has been built.

Navigating scale models

The Radio Controled (RC) scale models are split into three catagories.

F2A -- for scalemodels up to 900.0 mm length
F2B -- for scalemodels from 900.1 mm up to 1400.0 mm length
F2C -- for scalemodels from 1400.1 up to 2500.0 mm length

During a competition you get 7 minutes to finish the course , by preference without touching any bouy. This F2-cloverleaf course is used worldwide. At much friendly competitions alternative courses are used. Together with the navigating there can be a judgement of the way the model has been built.

There is also a F4-class with the same subdivisions specially for kitmodels.

Radio Controlled (RC) sailing-yachts

Different classes are known for radiocontroled sailing yachts.

Some well-known competition classes are:

The A-class -- Built to a special fomula. These boats are normally between 6 and 7 ft. long with a mast up to 8 ft. in length carrying a sail area averiging around 1650 sq.in.
The K-class -- Dutch non-Naviga class.
The M-class (Marblehead) -- Of American origin. The main features are a maximum length of 50 inches (127 cm) and a maximum sail area of 800 sq.inches (5161 cm2).
The 1-meter class -- Maximum length of 1 meter.
The 10-rater -- These boats are buit to a special rule and approx. 6 feet in length and carry a sail area of roughly 1100 sq in.
The free class -- No restrictions to length and sail area.

In all classes a special course has to be sailed , whereby the number of laps is counted.

Naviga is planning to start a new class for sailing ships in scale. See the draft of the rules for class Navigation Scale Sail (NSS).

Radio Controled (RC) speedboats

RC speedboats are especially build for competitions. There are a lot of international classes:

Classes for speedboats with internal combustion engine.

F1V3.5 -- speed course for speedboats with i.c.engine up to 3.5 cc.
F1V7.5 -- speed course for speedboats with i.c.engine from 3.51 cc up to 7.5 cc.
F1V15 -- speed course for speedboats with i.c.engine from 7.51 cc up to 15 cc.
F3V -- free-lance steering , Christmas tree course for speedboats with i.c.engine.
FSRV3.5 -- Multi-racing with speedboats (with i.c.engine up to 3.5 cc) around a M-shaped course.
FSRV7.5 -- Multi-racing with speedboats (with i.c.engine from 3.51 cc up to 7.5 cc) around a M-shaped course.
FSRV15 -- Multi-racing with speedboats (with i.c.engine from 7.51 cc up to 15 cc) around a M-shaped course.
FSRV35 -- Multi-racing with speedboats (with petrol engine up to 35 cc) around a M-shaped course.
FSRH3.5 -- Multi-racing with hydroplanes (with i.c.engine up to 3.5 cc) around an oval course.
FSRH7.5 -- Multi-racing with hydroplanes (with i.c.engine from 3.51 cc up to 7.5 cc) around an oval course.
FSRH15 -- Multi-racing with hydroplanes (with i.c.engine from 7.51 cc up to 15 cc) around an oval course.

Classes for speedboats with electric motor.

F1E -1kg -- speed course for electric speedboats up to 1.00 kg weight.
F1E +1kg -- speed course for electric speedboats with more than 1 kg weight.
F3E -- free-lance steering , Christmas tree course for speedboats with electric motor.
FSRE 20 cells -- Multi-racing with electric speedboats with 20 cells. (not yet Naviga)
FSRE-ECO standard -- Multi-racing with electric speedboats with standard (540) motor.
FSRE-ECO expert -- Multi-racing with electric speedboats around a triangular course.
FSRE-2kg -- Multi-racing with electric speedboats up to 2.00 kg weight.
FSRE+2kg -- Multi-racing with electric speedboats with more than 2 kg weight.
FSRE-MONO I - III -- Multi-racing with electric hydroplanes with monohull around oval course. Click here for rules and course.
FSRE-HYDRO I - III -- Multi-racing with electric hydroplanes with multihull around oval course. Click here for rules and course.
FSRE-mini-HYDRO -- Multi-racing with electric hydroplanes around a course. (not yet Naviga)