Paul davenport

I am sorry did any one give an explanation for the small car engine reliability?. The only thing I can think of is even at almost flat out speeds they are not over stressed. Never had a tachometer on the Matiz I drove probably a good thing as the revs would have scared me at highway speeds. At 110 kph there wasn’t much left and the fuel economy was not as good as you would think

Oops 110 kph don’t think they would have a snowballs chance to make it to 110 mph

Not disagreeing with anything you said W but how do we explain some of the small micro cars Daewoo matiz 800 cc, Suzuki Mighty Boy also 800 cc and a plethora of other small car engines from 1300 cc and down doing huge mileages . At 110 mph on the freeway for hours at a time, they are pretty much sitting on at least 75% or better of their output and reving their proverbial what nots off. These are amazing little engines and we rarely see them give any problems. I am not suggesting for one moment we fit them to aircraft but they certainly don’t fit your explanation of lack of durability at high power settings, I wonder why ?

Thanks for relating your experiences and the symptoms relating to this issue , this is precisely what I have spoken about when asking for real world experience. Are all Bing carburettors subject to this float problem or is it just Rotax equiped motors. Are two stroke motors effected. From memory my Jab has a different float set up.my BMW 1976 R 750 and so far no problems, is it a fuel related problem or is the material they make the floats from the issue

Fantastic, first hand practical information . What led you to replacing the floats? What were your symptoms, are the new floats any better ?

Ok i have listened to some outlandish statements without any evidence to backup these statements. Nev tell me more about these problematic Bing floats, is there a sevice bulletin from Rotax ? (how often should I change my floats) because I am not aware of one from jabiru. Have you flown a Rotax (or any Bing equiped aircraft) that has exhibited any of these symptoms , at what altitudes and weather conditions and have you been able to attribute WITH certainty the failure caused by them, In fact have you flown a Bing equipped aircraft with a leaning device ( no hearsay evidence or comparison with Anzani Merlin or any other red herring). I have a Hackman like device on my aircraft and it works very well and I can tell you from personal experience a Jab at 12500 ft runs very rich without leaning. Experience based observations from real world flying on the components we are talking about. We do this and any other subject a disservice when we speak without the evidence and hands on experience to back it up

Thanks OK I was hoping to get some pictures of an original plenum modified so I don’t have to do too much R&D myself

Not wishing to reinvent the wheel . Has anyone modified the rear of their Jabiru cooling plenums to allow the ignition leads to come out easily . If you have do you have any pictures

On my jab they work well it to about 4000ft from there on it gets progressively richer requiring manual intervention

There was one here in Wangaratta he used it to fly from Adelaide to Wang. Very quick Rotax powered with a vp prop if you would like and he is ok with talking to you I could get his number

I don’t know if it’s relevant but on the one I saw replaced there is a shim washer that is fitted at the front of the drive, it sticks to the old drive with oil grease and can be inadvertently thrown away. Without the shim washer there is too much end float which may cause early failure

On a flight to Swan Hill today at 6500 ft these are my temps with the mixture adjusted before adjusting the mixtures my EGT was 660, my adjusted limit is 710 c . I might say it was very cold up there . The way my carburettor is jetted and at altitude I can get 19 lph 106/110 knts 2600/2700 rpm. Oops file to big but EGT 710 cht 130 highest temps

I have seen planesmaker take off at Mt Beauty with a full load of people and baggage very impressive , well done Tom. Good to hear real world actual experience rather than why it can’t be done

Keep going and keep posting . Looking forward to seeing the final product

I am really enjoying you progress. Thank you for sharing it with us. All things considered wouldit be easier to build new or do as you have . You seem to like taking the scenic route

I think Hugh’s Aircraft had a VP prop it fitted through hollow shaft on gearbox and had a vernier cable to adjust. Anyone know how it went

Skip I cannot speak for other dealers but I know at my dealership if you wanted to buy 5 litres just bring in the container.

Pics! Would like to see this. Pics please! I’ve enjoyed seeing all the hangar variations. I’ve built in rammed earth first house then as seen (iTunes/ Foxtel/ free to air ABC) Grand Designs Australia in rock, glass, Coreten and spotted gum.

 

I’m hoping to get back to Australia later this year and put in a runway and hangar on French island. Will definitely use idea from here. Current winning idea is combination of farm shed with the carriage and rail system and ability to store 2 or 3 planes. Mine and visitors!

https://www.completehome.com.au/new-homes/american-inspired-grand-design-french-island.html

Email me [email protected]

Mine was originally a hay shed which fell over in a stiff breeze ? I had purchased 44 hectares and conveniently the shed was just round the corner. I made myself a promise that if I could rebuild the hanger I would build a house . I now live in a straw bale house with a hanger 20 meters away

Bought as a double T hangar in 2012 for 4k. Spent another 2k & rebuilt into a 25 metres x 7 metres twin hangar.

 

[ATTACH alt=IMG196.jpg]52817[/ATTACH][ATTACH alt=IMG786.jpg]52818[/ATTACH] [ATTACH alt=20180216_113603.jpg]52819[/ATTACH][ATTACH alt=20190112_074833.jpg]52820[/ATTACH]

Love the Bed, Vacuum cleaner and carpeted floor . Very hanger proud. I have to use the blower to get mine clean.

[ATTACH type=full" width="80px" alt="1588113207811.png]52756[/ATTACH]

 

Here's my hanger.[ATTACH type=full" width="119px" alt="1588112840440.png]52754[/ATTACH]

Plastic fantastic or spam can

I Must be getting bored but here goes (blame it on Covid) Show us your hanger, where you keep your pride and joy. Given the opportunity would you like to live in your hanger ?. I am fortunate to live on acres and have my strip and hanger only 20 meters away. Here’s my hanger, not the flashest but it keeps the elements off my pride and joys

There's very little increase in efficiency or power with having two plugs . Central in a 4 valve head is an optimum position Poor location and/or combustion chamber shape will require more advance. The main advantage of a larger bore is larger valves permitted and therefore better gas flow possible.

Running on one magneto where two is fitted is for limited time. In the Douglas DC 6's the F/E had an ignition analyser and usually any engine with any ignition problems had the engine shut down in flight..

I've flown some pretty ancient stuff (pity there wasn't more). By about 1913 magnetos were well made and reliable.

Some mag failures require one mag to be earthed (rendered inactive) if certain types of failure occur ie timing slipped. if you (must) continue flight.

Most of the trouble was water condensing in the tropics. Blowing out the Mag (s) with compressed Dry Nitrogen overnight was standard practice where I went.

Like everybody, I've had a few times where the rev drop was more than permitted so I've had it rectified except for a time when a short ferry was needed with the plane lightly loaded, to a repair location. You need antiseize and the correct tension when installing spark plugs. Nev

Nev if you can remember back to 1913 how old are you

Mine lives in the fridge. I used to buy it in tube about tooth paste size more expensive in the long run but easier to carry and less wastage when it does go off. You don’t use much on a job . I think last time it went off I repaired a cattle trough with it.

Auto windscreen adhesive. In the auto trade windscreens bonded with this act as a structural member. It has ,many other bonding uses, I have used it on many applications only limited by your imagination