AVOCET

You could try pirtek (google it) you have to make sure the temp & max pressures are right for your application

I'm using oil hose to cooler ,the hose is rated to 125c & 250 psi .

I found a lot of oil hose was only rated to 80c & 250psi . I found pirtek have good range of fittings as well , I ended up going with the alum push lock fittings for oil as well as fuel .

I assume these figures are max temp at max pressure .My application is a 3300 jab.

Hope this helps

Cheers mike

Go to forums ( top left ), then pilots just landed & and you'll see Avocet flys again

Good luck

GeForce , check out the avocet posts ,

Happy to answer any questions

Cheers mike

That makes 3 H/H I know ?!! Geees!

Howard , if your. Looking for cheep ,

I'm prepared to let you come and use my moulds and build yourself an Avocet , you have the Floats , it will only cost you time & materials , be a good way to get another one out there , the 6 cyl D motor would be my choice for the next one , its the right H/P for amphib.

Hi there , are you still working on this boom prop idea , I've been out of the loop for a while ,

I found this concept from the late 60s of a boom prop design and was one of the designs that inspired the Avocet .

I have worked out how to do the boom prop & it looks very similar , I also looked at large ring ball bearings but didn't like the weight or maintaince issues

Have alook at this concept by Paul MacCready

igot from an old Smithsonian book

Cheers ,Mike Sharples

Gee , that brings back memories , seems such a long time ago ,

Give my regards to every one .

Cheers , Mike ,&Ncholas says hello.

Also thanks Alan ,encouraging words ,make a big difference. Cheers mate.

What do you think of this for a lightweight cheep to run ( maybe electric ) project , checkout the prop thru the fuse ,!

Thanks Planey, that really means a lot to me

Just hope the Raa aus gets its act together so I can fly it again , it's been nearly 2 months since the rego ran out .

I've just been reading some posts on "Govening bodies "that it all could fall apart ,

I'm starting to think it might be easier to go experimental with saaa , I'm glad I've been a member for 3years ,at least ill be able to use the MTOW of 700 kg but ill have to finish the ppl

Thanks again for your sentiments, it nearly bourght a tear

Cheers Mike:nerd:

By all means , although the amphibious version is still only a concept .iam looking for interested parties to develop the amphib.

Wollongong / Hobart in one go , maybee with a good tail wind and an empty bladder ?

Cheers .

Thanks for the promp Howard ,

I think Raa registered ,well it was ! ! I'm stating think it might be time to :to:to: too ,two ; (I just carnt bring myself to say what I realy think ???!!!).still waiting, it ran out 7th April ,i paid the renual 3weeks prior !

Ill think ill just talk about the plane , ......

Nose cones for battery x2 (ballast),

Back doors open up for cargo , stretcher , motor bike , camping gear ect ,

It's got a liquid cooled multypoint fuel injection , fuel injected throttle body ,

Plane power 30 amp alt,(that bolts to vac attach on the 3300jab. That gives 2 of all the important stuff , (wont stop you having a prang though )

I originlyv had the Idea of building a single bed Ariel Ambulance type that could be used in the third word as a cheap alternative to a helli copter .

I had 56 hours up on it so far , easy to fly &very stable in the air , lands easy , it was really a nice surprise when I first flu it , doesn't seem to have any great pitching issues , if I can jump in and fly it , (I've only flown jabirus ) It has the same control responses as any pusher , but being biggish , it's not so pronounced .

Ill be getting around to the air shows this year , you could easy make a 4seater , and I've got concept drawings for an amphibious version , (See photos)

Cheers Mike

I think I was the one living under the rock , at the time I didn't really feel like talking about it .

I was on my way to the last wide bay air show and near Willcainia NSW one of the exhaust pipes cracked off and fell against the oil pressure sender wire , shorted it out .

So I heard a rattle and no oil pressure ,

750 hrs on the 3300 I thought a thru bolt had gone , 7500ft an old station air strip

below I glided down to land , got to slow turning base to final 30ft agl , kept banking to left , couldn't lift wing , it all happened that fast and bang the tree .

Broken sturnum , cut arm , 5days in Broken hill hospital . Anyway , all history now .

Took a while to get over it though .

There was to many good bits that weeny that badly damaged,

It cost $100.000 to build the fist one and only $20,000 to rebuild

Some photos of what's been happening

Sounds good , I'm in as well

Just thought IDE say hello again ,

I've rebuilt the Avocet after my prang aug. 2011.im still waiting for my rego to come through ( it was due 7th April) .no I haven't flown it yet ,

I'm interested in the admin post about the advertising opportunity that's on offer ,sounds quite reasonable compared to the magazine costs . I have every intention to have a go at building a few to interested parties,although ill need some help; .a bit of feedback on how to go about advertising on the forum would be much appreciated .

I've made some mods on the rebuild , a single post turret instead of that ugly 4post thing ,a fatter vert. Stab. and winglets for the j250 wings .

I've also put a 30 amp alt.& run the jab alt.as a backup . I found the power requirements with the

Fuel injection SDS and the 7 amps the water pump required were a bit much for the jabiru alt ,( thanks to Jake Jensen for his help , interest and patience ,and all those folk how encouraged me to keep going and "chin up"

Avocet (mike Sharples)

I

Hi ,sounds like the Aussie design team is alive & well,

It was this time last year that my design the Avocet was first flown . It took 3 years to design & build the plugs & moulds .i flu to Temora last year &it was well received . It's a great feeling when you finally get to fly something that started as a scribble on a note pad & then watch it develop to a modle. I remember about 4 years ago peddling the balsa modle around the air shows asking everyone what they thourght.

Actually , it was quite encouraging , but some folk think your crazy & then you go though a stage that you start thinking you are crazy , but after its finished and up and flying , well ,like I said its a grate feeling .

I had to go back to the books and study , but I found it stimulating & well worth the effort .

One in particular was A C kamode ,it's basicly a first year aeronautical engineering book that spells out the basics '& is a good place to start . If you google mike Sharples avocet ,there's some info from last year . I'm building the mk. 2 at the moment whith a few mods from the original , like a single post turret, and moving the wings 30 mm forward , I've put a larger ventral fin & mk. 2 should be about thirty kgs. Lighter .

Using a differant core mat , & I found through testing that it's over built in a couple of areas,

Cheers, Avocet .

We have a good design for a contra rotating prop hub that we will develop ,that will allow two 35 ins. Dia props which will place the engine bulk lower, but even in its current configuration the vertical c/ g is at head height.

Thanks,l got sick of having no transport at some ,if not most of the airports around,it fits a yammy.200 agg. Bike or such.

its going to be an amphibious craft at stage three ,after the retractable undercarage is designed(got any light weight designs lying around? ) l have balanced the forces with careful and calculus positioning of the engine thrustline &c/g ,tail incidence,ect,ect,and the fuse will contribute to lift in front of c/p of wings.(building is a compromise,theres no ware else to put the motor,and keep the weight down to 328 kgs empty.) When l started the idea we were all expecting 760kg. Weight increase to happen .Mike.

I have placed a float sensor in the sump x 2 one set at 2 lts. and the 2nd at 500 mlt so that will reduce the frequency of top UPS ,.checking the level before each flight is done using the ladder type step that also doubles as a ramp for loading the motor bike.

Avocet

THANKS JOHN ,I'VE ENLISTED ONCE MORE ,THANKS FOR POSTING PHOTOS,. cheers Mike.