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Author Topic: Wairarapa 120, 28th October.
waynemowbr-
ay
Moderator
Posts: 108
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Post Wairarapa 120, 28th October.
on: October 5, 2018, 07:37
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Hi,

Just an update.

Henley Lake, our venue, has very low water levels. There are a number of reasons for this. At the moment the water is still clean but if the temperatures keep rising the weed which is our annual problem will come through the surface which makes the lake unusable.

We are monitoring the situation and will keep you informed.

At our Club meeting last night we also discussed the issue of fail safes.

Our position is we will not allow boats without a coil disabling fail safe to be allowed at our events. At scrutineering the fail safe will be checked to show that the engine can be disabled from the both the boat and the transmitter.

Regards,

Wayne.

flambeau
Newbie
Posts: 13
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Post Re: Wairarapa 120, 28th October.
on: October 11, 2018, 20:01
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Hi Wayne, just a quick question
.Is a boat setup to operate as per the proposed Nzmpba rules regarding Kill switches and fail safes satisfy the Manawatu club.. Cheers Murray

flambeau
Newbie
Posts: 13
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Post Re: Wairarapa 120, 28th October.
on: October 11, 2018, 20:10
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Sorry Masterton club

Et.com
Newbie
Posts: 8
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Post Re: Wairarapa 120, 28th October.
on: October 13, 2018, 16:08
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Hi everyone, been down to the lake yesterday and it looks good for the offshore event on the 28th
So get your entries in
Cheers Trevor

waynemowbr-
ay
Moderator
Posts: 108
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Post Re: Wairarapa 120, 28th October.
on: October 14, 2018, 08:29
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Hi Murray.
Our club situation has always been that we will not allow boats on the lake which are not fitted with an ignition coil disabling system. This is to be effective when either power is lost in the boat or loss of signal from the transmitter. The failsafe system must be demonstrated to work when either the transmitter is turned off or the the power in the boat turned off.
Wayne.

Bigbird
Administrator
Posts: 233
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Post Re: Wairarapa 120, 28th October.
on: October 15, 2018, 00:06
Quote

Ok seems like we have two versions for ignition disabling/failsafes here as below.

Version 1 as per NZMPBA rules

Radio Control systems with an integrated Fail safe must use and demonstrate the operation of the Fail Safe during scrutineering with the engine running.
All Petrol powered boats must be protected against zero voltage receiver failure by using an ignition coil disabling system.
The effectiveness of the Ignition coil disabling system must be demonstrated
during scrutineering with the engine running by turning the receiver off, then the receiver must be turned back on, engine to be restarted and then the engine must stop when the Transmitter is turned off.

Version 2 as per Wairarapa club.

...fitted with an ignition coil disabling system. This is to be effective when either power is lost in the boat or loss of signal from the transmitter. The failsafe system must be demonstrated to work when either the transmitter is turned off or the the power in the boat turned off.

Can we have a ruling from Wairarapa. Which version(s) will be acceptable? 1 or 2 or is it just 2?

If it is version 2 only my boat won't comply and won't get past scrutineering. However I am version 1 compliant.

Please clarify position ASAP so that I will know whether to continue preparations and put an entry in. The entry form actually refers to version 1, the NZMPBA rules.

Peter Collier

Mr-
Electric
Jedi
Posts: 121
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Post Re: Wairarapa 120, 28th October.
on: October 15, 2018, 07:37
Quote

There really shouldn't be any confusion here. The regatta is a round of the NZMPBA offshore series and should be run as per the NZMPBA rules. The Wairarapa club also has two members on committee so they should be able to synch this easily enough. If not, should it be a sanctioned event or part of the series! Is it too hard to get this stuff right?

waynemowbr-
ay
Moderator
Posts: 108
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Post Re: Wairarapa 120, 28th October.
on: October 15, 2018, 10:40
Quote

Morning,

I'm lost in the jungle here.

Peters version 1. (NZMPBA) Rules says, 'The effectivenss of the Ignition coil disabling system must be demonstrated during scrutineering with the engine running by turning the receiver off, then the receiver must be turned back on, engine to be restarted and then the engine must stop when the Transmitter is turned off.

Peters version 2. (Wai. Club rules.)... fitted with an ignition coil disabling system. This is to be effective when either power is lost in the boat or loss of signal from the transmitter. The failsafe system must be demonstrated to work when either the transmitter is turned off or the power in the boat turned off.

What is the actual difference between these two rulings?

Both require it to be demonstrated that the coil disabling system is shown to work when either there is no powe in the boat or the transmitter is turned off.

Having a failsafe system which can be operated by, lets say, a third channel on the transmitter is useless if the transmitter is not working. The failsafe must work when signal to the boat is lost by, transmitter failure, being out of range, Signal failure or glitches, low battery power in boat, overdrawing of power in the boat if using high drain servo's, receiver failure, broken throttle linkage.

The ability to stop the boat by turning off the transmitter is by far the most the most important.

I hope this clears up any confusion,

Wayne.

flambeau
Newbie
Posts: 13
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Post Re: Wairarapa 120, 28th October.
on: October 15, 2018, 11:38
Quote

Hi Wayne, My reason for asking the initial question was.I have a new Spektrum Radio and the failsafe works on the throttle channel only, I have the Kill switch setup on an auxiliary channel which enables me to kill the motor if I need to but it does not operate with the failsafe but by having the linkages correctly set up the motor stops.The problem maybe is that the Coil disabling device and the failsafe are being linked together and I'm not sure that they should be. I would appreciate a yes or no answer to my original question. Thanks Murray

Bigbird
Administrator
Posts: 233
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Post Re: Wairarapa 120, 28th October.
on: October 15, 2018, 21:19
Quote

Hi Wayne,

So to get out of the jungle.............

A boat (such as mine) where its failsafe/ignition disabling system is shown to work as follows.
1. Receiver power is turned off, motor stops due to ignition coil being disabled.
2. Transmitter is turned off and motor stops due to throttle being closed completely, but NOT due to ignition being cut.
3. Additionally, the ignition can be cut with a toggle switch above the throttle stick on the Transmitter that also doubles as the switch that fully closes the throttle from the idle position. This is used when stopping on return to bank after race. It also means ignition can also be killed out on the course if need be.

This complies with the updated NZMPBA rule.

Will this boat pass scrutineering at Wairarapa club events?

I think the answer to this will cover Murray's question as well.

Peter

PS. Incidentally I am using a Futaba FASST R617FS receiver on a Futaba T7C FASST Transmitter and the failsafe ONLY works on Channel 3, the throttle.

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