Marty_d

As promised - some pics of the battery shelf. Total weight = 312g.

One of my favourite planes. Just looks "right" - especially in polished aluminium.

Thanks Mike! PM sent.

Ah - that must be it. I plugged the generator wires straight into the regulator. Is that perhaps for engines that are mounted further forward? Mine reached the regulator fine, so not sure that I need to use the extension. Less connections would be better I assume?

Yep - the braided line up from the generator with 2x yellow leads in it, plugged into the "G" ports in the regulator.

Hi all, I bought a set of Savannah instruments (brand new) as the builder had decided to go with a glass cockpit instead. He threw in the wiring harness with it, which, given my 701 is pretty much identical to a Sav VG / XL in any case, has been very handy. I've had a lot of help from @IBob and @Kyle Communications with the wiring, but there's a couple of oddities on my loom that theirs doesn't seem to have. 1. The 50A fuse that goes between Relay (solenoid) and Regulator - theirs has one terminal on each side, mine has a ring terminal on one side (Relay) and 3 spade connectors on the other side. What are the other 2 spade connectors for? 2. There's an additional double yellow cable in red insulation, with female spade connectors on one end and male connectors in a plastic junction on the other. Does this have anything to do with the extra connectors from the 50A fuse, and if so, where do they go? Thanks! Cheers, Marty

I don't know if it's CGI or not, but it has been sped up. Never seen a jellyfish go that quick.

An update on the build - as per the above couple of posts you can probably tell that I've started working on the electrical system. So far I've installed Relay, Regulator, and thanks to the vast patience and helpfulness of @IBob and others, have sorted out all the engine-side ends of the Savannah harness I have. I've also bought a battery (Full River HC-20), and discovered that you can get the metal case off, and in doing so you save 903g. Which I'm quite happy about. Tonight I've been working on building a mounting shelf for the battery, right behind the pilot's seat and on the side of the fuselage so it clears the port rudder cable. I'll post some pics later, but it involves a couple of 250mm lengths of 19x19 L shaped extrusion - one on the floor, one on the fuse side, then a 0.032" bent shelf between them. The shelf is level as the aircraft sits on the ground, and is bent up on 3 edges to keep the battery on (there'll be a strip riveted on the 4th edge too). I'll have to design some sort of retaining strap that goes over the battery to hold it down. I've also bought a 200A isolation switch and installed it on the seat front, between the flap lever and the stick. There'll be a positive cable from battery to switch, then on to the relay and the rest of the circuit. A check of the oil pressure sender has revealed it's the newer type (Honeywell), so have ordered the appropriate gauge from Skyshop today. Checked Aircraft Spruce but with exchange rate and freight, Skyshop were cheaper. Still need to get a capacitor, fuel pump and a few other bits and bobs, but the credit card has had a bit of a hammering this month already so may hold back on them for a bit. Cheers, Marty

So... takeoff and mowing are the same thing?

Thanks RFguy, I have the standard solenoid -came with the engine I bought. (This one is brand new, obviously when the flight school owner changed out the engine on his Foxbat he left all the old ancillary stuff in the engine bay - muffler, electrics etc). He gave me the brand new muffler and solenoid. Today I managed to get the steel case off the battery. They had used a weak glue-like substance - similar to what you get on jar labels. Haven't yet weighed the case.

All I'm seeing is stupidity. There had been previous "incidents". They hadn't figured out what caused this incident before trying to fly again and crashing. Maybe they should spend less time praying and more time thinking.

Bit concerned about the effect the name might have on the more religious friends of pilots. I can just see their faces when the pilot says "I'll be taken up in the Rapture tomorrow!"

Ok, so I decided to get the info from the horse's mouth and asked Bert Flood's what they recommend. The bloke there said Panasonic LC-XC1221P, which is a deep cycle battery (21AH). So I rang around trying to source one, the shop whose national internet page offered them for sale told me that no, they'd talked to the supplier, and these are no longer produced. In fact Panasonic only make 100AH and bigger now. This battery shop bloke was very helpful. Couldn't understand why Rotax would recommend a deep cycle battery for an engine starting application, said that a "cranking" battery would be better (talked about the different thicknesses of plates inside them - you guys would know a lot more about the differences than I do). He ended up recommending the Full River HC-20 which apparently is a clone of the Odyssey pc680, mentioned above, but substantially cheaper as it comes from China instead of the US. So I think I'll take the weight hit (7 - 7.5kg without the steel case) and get one of those, mount it behind my arse and there won't be any problems with overheating. Will just have to lose that 5kg myself. Thanks all!

What did you do under your switch nuts? They're a bit harder - can't rotate the switch and need to snug it in quite tightly. (That reminds me - 14mm spanner when I go to Bunnings.)

That works when they have a movable nut - (and is also a damn good idea) - but unfortunately leaves out anything with a nutplate.

That's a damn good idea.

That looks brilliant! I'm convinced.

If you wanted to get philosophical about it, you could argue that marriage itself is the pressure cooker...

That's beautiful Vladimir.

I quite like the hammertone too, just wished it hadn't chipped under the screw heads. I thought I'd undercoated it with an etch primer too - perhaps I hadn't. Might take it off and do it again before I hook up the wiring.

Pulled the instrument panel out today, took all the instruments out and added some switches. Two for the magnetos (sorry Mark, CDI's!) with covers over them, one for fuel pump and a spare which I haven't decided yet, sure I'll need it. The Sav wiring diagram shows switches for landing lights, strobes, position lights and cabin light, none of which I anticipate having. Also a couple of circuit breakers, 10A and 15A. Bought a double USB socket (2 x 2.4A) which I'll mount in the baggage area, mounts flat and has a cover so you can put stuff on it if necessary. Unfortunately when I was mucking around with instruments, seems to have chipped the hammertone paint I put on. May have been a dodgy job by me in the first place. Now thinking about 3M covering in carbon fibre look again.

This is mainly for @Kyle Communications to look at as I can't seem to attach files to PM's. This is the fuse from the Relay to the Regulator. Another builder has reported that his only has 1 connection on the regulator side, this one has 3. (Came with a Savannah wiring harness). Anyone know where the other 2 go?

It was sent to me in an email, so doesn't have a link - unfortunately you'd have to download and send the actual file.

This is great. Those kids can really sing too. VIDEO-2021-01-15-15-36-51.mp4