danny_galaga

How is what you are saying and different to my statement? I just wanted everyone to know what I found out, the hard way. I was not countering anything you said. Some aircraft have car batteries, some aircraft batteries. They are slightly different.

Apologies, didn't read it carefully enough

If you are using an aircraft battery be aware that they are different to car batteries. The charged voltages are different! Car chargers don't work as well on aircraft batteries.

My statement still stands- find what your battery voltage is when charged and not being used. With your digital voltmeter you can easily see if at any time is higher or lower than at rest.

So, for Down under s battery it is 12.85v. after start it should show more than that. Note what it is under normal running conditions and you can discern most problems. Overcharging, no charge, dead short etc.

I have a digital voltmeter in my plane. All you need to know is the voltage at rest (which is about 12.4v). When the engine us running then anything higher is a charge. Anything lower is discharge. With everything on it should still be higher than 12.4v. ideally around 14v. When I was an auto elec when testing charging we considered anything over say 13.5 to be a win because there's so much variation in different systems.

So your voltmeter can give you similar information to an ammeter, just not as dramatically.

I agree with everything KG says..better off with 2 landing lights in the wings on wigwag

That is what I will be doing for the Rans S-21

After reading this thread I've decided that I'll do wig wag for my led wingtip lights in my ultralight. Since they are going to be most visible in wig wag mode, is there any reason to have any other mode? If not I'll just wire them off/wig wag.

This is the one !.

 

 

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spacesailor

I think it's cute ?

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Haven't read the whole thread, but not sure why you couldn't just use a regular car horn? I mean, if it's good enough in a supercar...

International postal rates are incredibly high. I want to buy a voltage regulator for my bike. It is about the size of a tin of Eclipse mints, but the cheapest postage is $US30.

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Yes US post is very expensive.

If you have a variety of shapes and holes to cut out of a panel, I would suggest you plan it all out carefully with a sheet of cardboard and then take it to someone that does laser cutting.

As mentioned I am building up everything on a MDF mockup. When I'm happy with that I'll cut out the he's in my Ali panel. I'm more aligned with kgwilson on this. Hell, if I wasn't prone to losing inertia of rather have built from plans but the it would take 20 years ?

Sounds good. Looks like there aren't any in Australia. But it's going to be a while before I cut the panel. So I'll get it on Amazon. Free tip guys- if you are getting something from overseas, if it's on Amazon go there. Aust Post priorotise Amazon parcels :) You need all the help you can get with the limited number of international flights at the moment. Although there is some vague talk that Amazon may be buying up some of the superfluous A380's that no one wants anymore. Won't help me right now of course :D

 

I've been mocking everything up on a 3mm MDF instrument panel so everything is in its place. I can sit in the cockpit and really make sure things look right and are in reach and it helps with seeing whats going on behind the panel too. I think I've had a change of plan for the radio for instance and the hole I cut out for that is damn close to the battery so I know to move that hole over a little on the final product.

I mentioned Amazon in a different thread just thought I'd update this. Received the tool today. So that's a bit over two weeks from the US. Plus a few days because for some reason a local courier delivered to my work address but refused to until I gave them my home address, 35 km further away. All of a sudden they could deliver to my work address after all ?

Six weeks at the moment from/to UK or US right now is about right. I work for Australia Post and I can tell you they are totally overwhelmed by the huge increase in parcels since covid. I did just receive something from amazon yesterday that took a lot shorter and a big part of that is they have dedicated freight planes whereas post don't.

You can always use a different service. See what it costs to send a letter/small parcel by courier.

I don't remember where I read it but by far the most motorcycle accidents are caused by car drivers. So get rid of cars and motorbikes are infinitely more safe.

That used to be the thinking of but some stats that came out a when ago showed that the biggest killer of motorcyclists was speed and or alcohol/drugs and that the most likely to suffer serious injury/death were males in their 20s

Use fine wire mesh in brass or buy a lawn mower fuel tap filter.

You're a genius! Spot the difference ?

At the risk of being a smartass: them's not gull wings, them's inverted gull wings. If in doubt, check a passing gull???

Yep, PZL 11 is a pretty example ?

So could that mean if you are a payed up member, you could get indefinite editing time?

Was thinking of a bit of wire earlier. Good point on the fuel vent too. Totally forgot about that!

You can enjoy NOT flying by the numbers and just fly by feel!

Although sometimes my own flying feels a bit ordinary ?

I suspect it's at 15 minutes at the moment. Especially nowadays using a smart phone, I'm more prone than ever to typos. Which I tend to notice more than 15 minutes later. I hate having typos. A 24 hour edit time (at least) would allow fixing up typos and adding links photos etc that were forgotten the first time around.

Nuts, are you saying that is bigger than the 1/4" that my ruler says? I was goi g to get a sintered filter for an RC Cl no tank but they are 3.5mm and u couldn't be arsed making it fit ?. Maybe I'll just cable tie a piece of stocking over the tube...

Had an aircraft that had a cintered brass filter in a short static port tube behind the dash. Worked fine.

Wayne

Just bought a cheap little sintered bronze filter with a 1/4" fitting that seems to be designed to give just the right 'fffffftttt' in those turbo ricers that bogans drive ?

What I'll finish cable tie the cover to a short length of PVC tubing with a few small holes burnt into it. Just to keep the foam away if it crumbles over time

Stick a filter over the end, something like a microphone cover just to safeguard the instrument from insects.

spacesailor

Yep had already envisaged doing something along those lines. Hadn't thought of a microphone filter though. Genius!

So just to be clear it will be in my Bushcat. So in a cabin, but not one that could ever be considered airtight

If I don't that's one less thing to go wrong and a few hundred grams of tubing less tubing to install.

Clearly the idea of inexpensive is rather subjective.

I'm sure it does a nice job, but I think I'd rather spend the other $250 on something else and have the experience of doing the part myself.

I find no satisfaction is being able to say I paid someone else to do it, but that's just me.

Yep. Whatever I do would want to be under $100. For $300 I could buy those snazzy panel punches and do it myself and get to use them again if I need to, or resell them.

My worry with CNC stuff is that you usually provide a file of the whole object and they cut it from blank stock. But supplying an already cut shape (which also has a bend) like my panel they will need to try and manually line it up, and face down.