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Got Jet Fuel? Turbine Helicopters > PHT3 - What is this thing???
 
 
SergioR
Heliman
Location: Portugal

I have bought a used HotCat.
A Futaba female plug as been soldered to the led board. What is this for?
Also, there is a led in the nose of the fuselage. It as a Futaba mail plug and was connected to the ECU (don't remember where). What is this for?

Thanks
SergioR

03-23-2008 04:18 PM
 
 
PETER ROB
Key Veteran
Location: Devon UK

SergioR , Ask the person you bought it from, it is not a standard fitting, I have never seen one like it from JetCat
Peter R
03-23-2008 05:50 PM
 
 
dazzaster
Veteran
Location: right next door to hell

common sense would tell me that if theres an added lead on the led board and a led on the canopy then perhaps the led on the canopy conect via the futaba socket to the led board so you can see the led status without haveing to remove the canopy??????
but then i could be wrong
Darren

I May Have Tuourettes Syndrome But I Meant Every Word I Called You
03-23-2008 06:12 PM
HOMEPAGE  
 
 
PETER ROB
Key Veteran
Location: Devon UK

If Common sense, was used, then they would have positioned the "IO" board, where it was posible, to see all three of the different coloured LED'S, without removing the canopy, but what do I know, I have only owned 2, and there is another, in the worshop at the moment,
Peter R
03-23-2008 06:44 PM
 
 
dazzaster
Veteran
Location: right next door to hell

perhaps they wanted it to look tidy and position the io board under the canopy or wanted to see its condtion while nose in?
you may have owned two and have one in the work shop but as you said=
Quote 
it is not a standard fitting, I have never seen one like it from JetCat
only by trying it will sergio know?
but as common sense will tell you if someone has added an led to the canopy and soldered a conector that fits that led on to the io board where the status led,s are then that solderd on wire is most likely going to an external led???? basicly conect the ecu up to the io board and then conect the io board to the led and then plug your data terminal into the io board and go into settings ago into the setup screen to activate the status lights if the led at the front of the canopy lights up when the status light on the io board does the answer is yes its so you can see the status better externally!
darren

I May Have Tuourettes Syndrome But I Meant Every Word I Called You
03-23-2008 07:55 PM
HOMEPAGE  
 
 
PETER ROB
Key Veteran
Location: Devon UK

Too many, perhaps,most likely,pure conjecture, not fact, you are talking as usual, with no knowledge, of the subject, or the helicopter
I see your wife has the right idea, one way to get shot of you I supose
Peter R
03-23-2008 08:46 PM
 
 
dazzaster
Veteran
Location: right next door to hell

whos the one talking with no knowledge you have no idea what knowledge i have on these engines or helicopters and you dont know that its not fact untill sergio plugs it in

Quote 
I see your wife has the right idea, one way to get shot of you I supose
thats a bit of a personal jibe but then at least mine is still with me

I May Have Tuourettes Syndrome But I Meant Every Word I Called You
03-23-2008 08:54 PM
HOMEPAGE  
 
 
SergioR
Heliman
Location: Portugal

The board can be seen already from the exterior. The led cable is short to connect directly to the board without using an extension. It is strange to me that someone that had the trouble and the knowledge to make such modification would let this led cable short.

As usual, I bought this heli from a friend who had bought from another...

I am not willing to connect this plugs without knowing what it is. I am a man that follows the manual 100% unless I know exactly what I am doing.

I will try to find out what this is and post it here to kill everyone’s curiosity.

SergioR

03-23-2008 09:08 PM
 
 
dazzaster
Veteran
Location: right next door to hell

i see that the io board is attached to the canopy with the status lights and terminal socket easily available.. now i see why the light up front can be confusing......
what coulour is the led on the nose? looks clear but put a small voltage to it to see what colour it is. it could be someone just wanted to put landing lights on it? but this would not explain the aditional wire to the io board
Darren

I May Have Tuourettes Syndrome But I Meant Every Word I Called You
03-23-2008 09:14 PM
HOMEPAGE  
 
 
SergioR
Heliman
Location: Portugal

A small voltage is what? 1,2v?

My guess was that this lead could tell something like a "low battery warning", or "low fuel" because it was connected directly to the ECU.

My manual is v4.00 and the ECU was v5.00 so I thought that could be a special function that was not on my manual version.

The PHT3 was sent to JetCat to update to kerostart. I am waiting for it.


Sergio
03-23-2008 09:22 PM
 
 
WIRLYBIRD
Senior Heliman
Location: CAPE TOWN / SOUTH AFRICA.

I have such a light on my NH90 , which I use for warning me of a low fuel situation , being the last 500ml left , it goes off very bright red , you can check easily to see if this is what the previous owner used it for. The other wire out of the I.o board as PR said is not standard , and best find out from the previous owner!!!!
Dave.

WHAT GOES UP MUST SURELY COME DOWN.
03-23-2008 10:27 PM
 
 
SergioR
Heliman
Location: Portugal

Here do your Led is connect to?
Does this requires a specific setup or is just the setup we use regulary? (tank capacity; low fuel warning setup)

I presume this Led will be ON at the same time that we will have the power reduced for the "Low fuel" warning.


SergioR
03-24-2008 12:27 AM
 
 
WIRLYBIRD
Senior Heliman
Location: CAPE TOWN / SOUTH AFRICA.

It is three years ago when I last set that function up , you go into the set up via the GSU if I remember its already set to 2000ml you set at what level you want the warning to go off , in my case 500ml. I can't say for sure but I think the light plugs into the smoker socket on the ECU , maybe Peter R will chime in , as he has a wealth of information at his finger tips , as he works all day with these engines.
Dave.

WHAT GOES UP MUST SURELY COME DOWN.
03-24-2008 08:32 AM
 
 
PETER ROB
Key Veteran
Location: Devon UK

Dave, Sorry Can not help you on this one, I did look at the possibility of fitting a low fuel warning, indicator, but thought at the time it was flawed
It works out how much fuel the turbine uses,from a full tank, then at a given amount used, the indicator shows
It's programing assumes the tanks are full, say 2 litres, if like in the early days, we messed around with short runs, to get used to the new toy,setting up for gas starts, pump start voltages, fuel was used before the main flight
Again on some scale birds the main tanks are hidden, from sight, the only way you know they are full is by filling until the fuel runs out the overflow pipe, as the tanks are pressurized at the time you have to suck fuel out, to relieve the pressure in the tank, and stop the fuel running out of the overflow pipe
For me it was too much hit and miss, so did not try it, I prefer the visual, where I can see at least the header tank
Peter R
Ps, The Jet Cat system did not need additional leads on the "IO" board
03-24-2008 09:09 AM
 
 
WIRLYBIRD
Senior Heliman
Location: CAPE TOWN / SOUTH AFRICA.

Hi Peter R , I agree it is a useless toy , but none the less it works only if there is in fact 2000ml in the tanks as is my case , and then you must be looking for the red light to see it in the day time. A much better option is to use the count down timer that most modern TX's have these days , and that is what I rely on , if I see the light , in the day time as well , then that's a bonus.

SergoR , if I were you I would make it my business to find out from who ever owned the system before that fitted the cable to the I/O board , the reason for this , and perhaps tell Peter R , he'll advise you correctly whether to remove it or not.
Dave.

WHAT GOES UP MUST SURELY COME DOWN.
03-24-2008 10:27 AM
 
 
MattJen
Elite Veteran
Location: UK,Gravesend, Kent

looking at the photo's it looks like in one of the photographs, next to the IO board there is an ON/OFF heavy duty Futaba switch.. with 2 battery checkers above it..

If that is indeed a switch then that is where that lead plugs into,

Which could also explain why it is such a short lead, as it plugs into the switch...

I can understand why this would be a good idea, as it means you dont have to keep lifting the lid off everytime to check and swithc on/off as that little spring clip which holds the lid on does wear out and it starts to become loose in the nose section...

Anyway it was just another thought which no one has mentioned...

Matt

I bought my Mother-in-law a chair for xmas, but she wouldn't plug it in
03-24-2008 11:29 AM
 
 
PETER ROB
Key Veteran
Location: Devon UK

Matt,Surely that switch, is for the receiver, you would not want to put the ECU supply, through servo cable, Jet Cat advise is ,do not put a switch between ECU and battery
Peter R
03-24-2008 11:53 AM
 
 
SergioR
Heliman
Location: Portugal

It is not a Futaba switch, but an Emcotec regulator with switch.
Above are 2 battery checkers.

I have already tried to contact the original owner and I had no success because it is Ester and most of us do not work until Wednesday.

SérgioR
03-24-2008 12:04 PM
 
 
MattJen
Elite Veteran
Location: UK,Gravesend, Kent

Oh well

it was an idea,

Sergio,

I am interested as to what it is, please post up when you get an answer

Matt

I bought my Mother-in-law a chair for xmas, but she wouldn't plug it in
03-24-2008 12:14 PM
 
 
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Got Jet Fuel? Turbine Helicopters > PHT3 - What is this thing???
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