Zonsen Aero Engines - Rapture Aviation (Adelaide)

[facthunter]

Pure AL has a fairly good resistance to corrosion As the Oxide Protects from further corrosion. Look it up and also ALCLAD use.  It does need looking after as does almost anything else. Bronze is pretty good( Copper-tin) and even pure Fe. made In a Puddling furnace and wrongly called Wrought iron these days.  If you know what to look for you'll find it on old shipwrecks used on the chains and anchors. The metal appears layered because it is.  It's folded and welded under the Hammer, many times.. Nev

[BrendAn]

23 hours ago, facthunter said:

Isn't that what the prop extension is ABOUT? Nev

wouldn't that be to keep the cowling standard as blue said.

[kgwilson]

Very few products are pure aluminium. It is too soft. Most are aluminium alloys with varying degrees of corrosion resistance. As soon as aluminium is created and cools a cost of aluminium oxide forms on the surface creating a barrier to corrosion. Introduction of other corrosive elements such as salt will begin the corrosive process. If you wash un-anodised or unpainted aluminium regularly it will last for a very long time. After WW2 most pots & pans were made from scrapped aluminium from aircraft. They didn't corrode though some got pitting due to introduced corrosive elements. Most got scrapped again when stainless steel came in to vogue.

 

The grade I built my aircraft is called 6061-T6. It has magnesium, silicon, copper, & chromium, in it & the T6 is the  tempering number. It has high corrosion resistance excellent welding capacity & high strength which is why it is great for aircraft. Back in the 70s I built my hang glider out of the same spec & other than new carbon fibre stuff that is what they are still made from.

[BrendAn]

23 hours ago, facthunter said:

There's always the Old trick of  moving the Battery further back and the advantage of that is you can calculate exactly how far you have to move it before you do anything. Being a fair way from the CofG (long moment arm) it has a lot of effect.. You have to start Nose heavy though. Adding/moving a weight that is not a part of the Plane is a waste and Last resort.  Nev

the jabiru lsa 55 that i wish i had never sold was 912 powered and the battery was about a foot behind the fuel tank in the back and the oil tank was beside the fuel tank behind the right seat. the expansion tank was under the panel on the right side.

it was a pretty tight fit in the center console with the fuel lines and 2 half inch oil lines and battery cables.

 

 

[facthunter]

The one with the throttle between your Legs?  They actually get along pretty smartly. First Jab I flew at Lethbridge. Owned by Gary Baume. Nev

[BrendAn]

1 minute ago, facthunter said:

The one with the throttle between your Legs?  They actually get along pretty smartly. First Jab I flew at Lethbridge. Owned by Gary Baume. Nev

yes.it was the first production jabiru. serial 003. 001 and 002 were 582 powered prototypes.

the 1600 motors were not good 2 up training so hedley flying school in queensland  got an stc from casa and had 3 of them converted to 80 hp 912s.  it lives at castlemaine now.