Proposals for TC Meeting at the WC in Kromolice

My dear friends,

In this post I have collected all the proposals you have sent. Some of them are contradicting to each other, so read carefully, discuss with your teammates and try to come to the TC with clear ansver of yes, or no. At the committee meeting we will rather vote. There will be no time to discuss such amount of proposals on site.  

One remark in advance from my side: The freeing up the connectors I would allow with the following restrictions:
– The connectors must make the reverse conneting impossible. Neither by means of polarity, nor by current flow. I.e. ESC and Battery side can not be overchanged.
– The connectors must be set the way, the limiter measures the highest voltage only of the battery pack. I.e. measuring with pin inserted into the ballancer port is not allowed.

Looking forward to see you at the Worlds!

Csaba Dánielfy
M Section Leader

Here you will find the proposals arrived.
———————————————————————————————————————————————————————-

Dear friends

Belgian proposal

1.      Start procedure oval :

The start procedure was changed from 10 sec to 6 sec as a main reason to have less accidents at the start line.
Now everybody starts full throttle and on an official parcours is not able to reach the starting line within the 6 sec.
The result is that at the first boy, there are more crashes than before.
So our proposition is to change back to the 10 sec rule.
If the rules are followed and enforced when necessary, this is the best solution in our opinion.

2.     

Best regards and hope to see you all soon

M section

Hello, I send you the proposals from Bulgaria.

Proposal 1: Free the connectors rule for big limiters like in mini classes. Every competitor use connectors by their own but must provide adapter to 5.5mm and 6.0mm like in the existing rule. Reason: The 5.5 and 6.0 connectors are week, they need to be exchanged every season. Most of 6.0mm are week and get loose in just a few races, there are planty of options for more reliable connectors. Proposal 2: Free the type of Litium batteries used, LiPo, LiFePo, LiIo, LiHV, but keep the rule for minimum weight and energy limit. Proposal3: Raise the Voltage Limit in all M-classes to 43V

Thank you, Best regards,
Todor Stoyanov

                                                                                                       May 12, 2026

Polish proposals for changes to the NAVIGA Section M Rules 2026

1.
We propose that batteries be weighed before racing during technical inspection, and then
marked with a seal/sticker that must remain visible on the battery installed in the model
without removing it.
Battery weighing today is fundamentally different from the old “weight battery” regulations
— the battery must meet a minimum weight, not a maximum one. Therefore, there is no
risk of increasing the battery weight after a race, for example due to water entering the
model.
Removing batteries before every heat often creates difficult situations, including dangerous
ones such as short circuits, which could be avoided with this solution.
At the request of the judge, an additional battery weighing may be carried out after a race,
and it shall be mandatory for the top 3 competitors in the final.

2.
We request that, in the event of a model failure on the water, only the hull be considered the
model carrying the license number and racing number, similarly to the rules concerning the
placement of model registration (license number), which cannot be placed on a float or
hatch cover.

This concerns hydro classes in particular.

The purpose is to establish that the model consists of one part, not three or more. If floats or
other parts separate from the hull during a race, under the current rules another competitor
may not touch any part of the damaged model, even if it is broken into three or more pieces
and these pieces are located in different areas of the course.
This creates many situations in which other competitors are disadvantaged because they
are forced to avoid multiple parts of a damaged model, and this may lead to unfair
disqualification of a competitor.

3.
We propose removing limits on the number of battery cells in all classes.
We believe that the use of limiters and a specified energy limit is already a sufficient factor
distinguishing the different classes.
Specifying the number of cells is a relic from the times when energy was limited by battery
weight.
The only limitation should be a maximum voltage of 43V.

4.
We propose removing from the regulations the possibility of using NiMH and LiFePO
batteries.
For several years nobody has been using these battery types, so this rule has become
obsolete.

5.
We propose that, in parallel with the points system, results in F3 classes also be shown in
seconds.
For each penalty point, 5 seconds are added to the result.
Example:
If a competitor completes the course in 20 seconds with no penalty points, the result would
be: 146.000 points / 20s
If a competitor completes the course in 20 seconds and receives 2 penalty points, the result
would be: 144.000 points / 30s
The purpose of introducing parallel time scoring is to make F3 results easier to understand,
as the current scoring system is unclear to many competitors and reduces interest in this
excellent class.

6.
We propose changing the buoy regulations for Eco classes.
Currently, the buoys for Eco classes are regulated together with the buoys for F1 and F3
classes (the regulations require them to protrude 10 cm to 20 cm above the water surface).
A buoy protruding only 10 cm in an Eco race does not fulfill its purpose. In addition, such a
small buoy can easily be damaged, which may lead to a race being repeated.
We propose separating the Eco buoy regulations from the F1 and F3 regulations, and
changing the protrusion height of Eco buoys to 20 cm to 30 cm above the water surface.

7.
We propose introducing the possibility of measuring times in F1 and F3 classes using a
dedicated timing device connected to the results presentation system, instead of using the
current three-stopwatch timing system, provided that it is not an AMB/MyLaps device.
Such a device would require approval from the NAVIGA Section M Committee, led by the
Section M Leader.

                                                                                                    Section M Poland

Copy of original document

———————————————————————————————————————————————————————————————

Proposal of Hungary

Canceling of sound measuring at IC classes

Section M Hungary

——————————————————————————————————————————————————————————————–

Proposal of Italy

Dear Chef of the Commission Section M,

I am following up on the emails previously exchanged between FIM and Naviga, and I would like to bring the following proposals to your attention:

1. Rewriting and Revising the Regulation: It is essential to make the text more modern and clear, especially to facilitate understanding for new individuals, not just for those who currently follow it out of inertia. The current regulation is outdated and scattered. I have already shared a draft with you that we can work on.
2. Integration on the Use of Batteries and Limiters: I propose the inclusion of specific guidelines regarding the use of batteries and limiters for the various categories, in order to improve the management of international and national races.
3. Regulation of the Issuance of Clearance: I suggest revising the procedures for issuing clearance for pilots requesting to participate with another nation. In addition to the general conditions already present in the regulation, limited and well-motivated cases should be included to facilitate this operation, avoiding approximate evaluations.

I remain available for any further clarifications and insights. We are in discussion with the one organizer here in Italy for try to organization the WC 2027.

Best regards,

Alessandro Cremona

German Naviga Section M Rule Proposals 2026

German Naviga Section M Rule Proposals 2026

1. Energy: Reduce the limits as follows (each item to be voted on separately)
1.A)
Mini Eco                20 Wh
Mini Eco Team   3x 20 Wh
Mini Mono             20 Wh
Mini Hydro            20 Wh
Mini FSRE             40 Wh
1.B)
Eco                      55 Wh
Eco Team         3x 55 Wh
Mono 1                55 Wh
Hydro 1                55 Wh
FSRE                  165 Wh
1.C)
Mono 2               110 Wh
Hydro 2               110 Wh
Reasoning: the high amount of available energy has made boats too fast and therefore dangerous,
especially in Mono 2 and Hydro 2. We suggest this moderate reduction of energy limits so current boats can
shall be used. Battery weights remain the same – meaning the batteries are less stressed and have a longer
life>me. Each item to be voted separately, so at least Mono2 and Hydro 2 can be reduced in Energy for
safety reasons.

2. Connector system free of choice or MP-Jet 3,5mm

2.A) Any connector system allowed in all classes (as already permitted in Mini): Each competitor may use
their own connector system between battery, limiter and ESC. For measurement purposes, adapters to the
currently required connector system must be provided.
Reasoning: The currently prescribed connectors are heavy, take up a lot of space, and usually become
loose/unreliable after repeated plugging cycles. In addition, different suppliers have varying dimensions,
meaning the connectors are not always compatible although they are marketed as 5,5 or 6,0mm.
Similar to batteries, motors, props, etc., we would like to allow free connector choice and make the
competitor self-responsible to assure correct connection of battery, limiter and ESC.

2.B): if 2.A) is rejected, we propose: 3.5 mm MP Jet connectors on the battery side instead of the currently
required 5.5 mm connectors.
Reasoning: These connectors fit very securely even after more than 100
plug/unplug cycles, have lower weight and volume, and a very low internal resistance. Successfully used in
racing for over 20 years. The longer durability compensates for an allegedly higher purchase price. See:
https://mpjet.com/shop/gb/928-mp-jet-connectors

3. Race start (applies to all Mono and Hydro classes; each a separate proposal)

3.A) Individual start in driving direction: The boats start individually one after another, following the call of
the respective starting number, in driving direction (= to the left), with an interval of 1 second. The left boat starts first, the right boat last. Runtime must be measured accordingly with a one-second offset for each
competitor. Reasoning: This system has been in use for 20 years and prevents crashes at the start. It is less
stressful and safer for boats as well as drivers, judges and rescue boat crews.
3.B) If proposal 3.A) is rejected, we propose: return to the 10-second starting time instead of 6 seconds. If
proposal 3.A) is accepted, this proposal [3.B)] becomes obsolete.
Reasoning: Especially Hydro races have
shown that with 6 seconds, there are just as many crashes.
3.C) If proposal 3.A) is rejected, we propose: no yellow card for braking / reducing speed during the start
procedure, i.e. within the 6 or 10 seconds. If proposal 3.A) is accepted, this proposal [3.C)] becomes
obsolete.
Reasoning: It is very difficult for the judge to simultaneously observe 6 boats and reliably
determine whether there was actually a reduction in speed.

4. Hull length

4.A) Completely abolish the maximum hull length in all Mini classes. Reasoning: The available energy
naturally regulates the size, just as in the other classes. This would help make the small boats more
manageable in stronger wind and waves through the potentially increased size.
4.B) If proposal 4.A) is rejected, we propose: In Mini Mono and Mini Hydro, limit the total length to 53 cm
including all attachments (i.e. strut, propeller, number plate, rudder maximum 8 cm). An exception applies
to a rudder folded upwards during the race – this does not count. Hull length itself remains limited to 45
cm.
Reasoning: clarification and prevention of work-arounds that make the boat artificially longer with very
long shafts.

5. Ban unnecessarily protruding tubes on Hydro boats: maximum 4 cm beyond the outer sides of the
sponsons. This applies only before the start / at the beginning of the race (a protruding tube after e.g. a
crash is irrelevant).
Reasoning: There have been cases where the sponson tube extended approximately 10
cm beyond the outside of the sponson (not because of an accident during the race). Besides acting as an
aerodynamic brake, this unnecessary extension serves no purpose other than making overtaking more
difficult or even provoking crashes or damage to other boats.

6. In the Hydro classes, the hull and the sponsons of the outriggers should each be painted at least one third in a bright, highly visible color.
Reasoning: Oftentimes the middle hull is painted appropriately, but for
example black carbon sponsons are not painted at all.

7. Check-in and Check-out Procedure:

7.A) Measure the length and total weight of the boat including the battery before the race. Reasoning:
length and weight could possibly not be correctly determined after the race due to crashes or water in the
boat.
7.B) Measure battery weight after the race. Reasoning: this saves time and stress during check-in because
competitors no longer need to install the batteries into the boats in the checkin area.
7.C) In finals for the top three finishers, otherwise on a random basis or in case of suspicion: after the race,
boats must be opened under supervision to inspect the limiters, including all limiter connections and
programming.
Reasoning: The idea is to clarify the possibility and necessity of checking limiters especially in finals in order
to prevent fraud.

8. Questions (no proposals)
Please clarify based on the existing rules: During which exact period do the 2 minutes apply? Is it allowed to
check in with a B-boat? Is it allowed to check in with 2 boats and then decide on one boat during
transponder check? If something was overlooked during registration, for example the battery voltage was
not recorded – who is responsible?

Germany, 13th May 2026
Mark Scheren

To see tho original document, please click on the LINK!  

Proposal of Czech Republic

Good morning Csaba,