Rotax 582 performance mod

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KFA
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Re: Rotax 582 performance mod

Postby KFA » Thu May 15, 2014 11:05 am

Hi Hennie,
ek hoor wat jy se en ek verstaan. Die woorde goedkoop, lugvaart en betroubaar kon nog NOOIT in dieselfde sin gebruik word nie so wees maar net versigtig. As hulle die ongelukkik oorleef, het die meeste mense geld om dit oor tedoen maar nooit geld gehad om dit die eerste keer reg te doen nie.

My punt in hierdie hele ding is dat as engines jou sterk punt is dan experimenteer met liefde maar as dit nie is nie, los dit eerder en spaar jou vrou en kinders die trane. Ons het al genoeg maats in die bedryf verloor.

Mike se jy het met hom gesles oor sy engines, DIT is 'n baie beter besluit as om mods te doen op engines waarop jy nie 'n kenner is nie. Lekker bou en vlieg veilig.

Stefan
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Re: Rotax 582 performance mod

Postby Henni » Thu May 15, 2014 11:26 am

Hi Stefan,

Ja, danksy 'n oproep wat ek gemis het gisteraand met 'n lang voicemail en danksy raad van iemand vanoggend het ek PRESIES gekry waarvoor ek gesoek het. Dit pas my spesifieke behoefte vir my unieke projek soos 'n handskoen. Ek is rerig veheug. Daar is gemengde gevoelens op die net oor die spesifieke enjin, maar ek is meer as tevrede oor wat ek daaroor gelees het. Dit lewer wel die krag soos per die spesifikasie, al klink dit soos 'n feeverhaal.

Vir die eerste keer voel ek nou lekker. Ek kon 'n baie sterk behoorlike vliegtuig enjin vir my projek kry, maar dan verander ALLES! Ja, sy sou vining wees, maar net nog 'n vinnige swaar aerie. Ek wil baie graag heeltemal na die anderkant - so lig as moontlik, maar ook kragtig genoeg om twee maklik te hanteer en ten minste soos 'n volvwaardige KR2 te cruise. Ek is oortuig dat ek my doelwit gaan bereik en nou kan ek weer met mening verder bou.

Jou enjin sou rerig die antwoord wees en heel moontlik sal ek jou nader in die toekoms hieroor. Ongelukkig is ek nie nou in staat daartoe nie.

Ek is Mike oneindig dankbaar oor die enjin. Ek het nou vir die eerste keer in amper twee weke weer vrede. Ek het op 'n stadium nie geweet WATTER kant toe nie.

So terloops, ek koop die Cheetah Mount saam wat die Cheetah neuswiel mount insluit. Way so so 'n neuswiel my kos, net so min of meer? As jy wil kan jy my PM.

Groete,

Henni
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Re: Rotax 582 performance mod

Postby JvTonder » Thu May 15, 2014 11:36 am

Henni nou vertel ons van die motor, ek is vrek nuuskierig.

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Re: Rotax 582 performance mod

Postby Henni » Thu May 15, 2014 11:42 am

Hi Jaco,

Jy kan meer hier lees as jy wil.

Groete,

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Re: Rotax 582 performance mod

Postby Henni » Thu May 15, 2014 12:22 pm

Hi Stefan,

Kom ek vertel jou 'n staaltjie of twee:

Baie, baie jare terug lees ek van 'n Rotorway helikopter in een of ander Popular Mechanic tydskrif. Die detail was min, maar se dat dit 'n V4 enjin gebruik.

Ek kom nie uit 'n gesin waar enigeen in vlieg belang gestel het nie, so ek het geen agtergrond kennis hoegenaamd gehad nie. Maar vlieg wil ek vlieg.

Ek gaan koop toe vir my 'n klomp square tubing en begin 'n helikopter raamwerk aanmekaar slaan. Man, hoe het almal nie vir my gelag nie? 'n Maand of wat later gaan koop ek vir my 'n Taunis V4 enjin en begin hierdie ding onder die sitplek van my "helikopter" inbou. Toe dit in was, verander die gelag ek nou word ek vrae gevra soos:

Waar gaan jy opstyg?
Wie gaan jou leer vlieg?

ensomeer. Dit was eers heelwat later dat ek in 'n ander artikel gelees het dat die Scropion van Chrome Molly gebou was en dat dit 'n Evenrude 140pk boot enjin gebruik het.

Ek het daardie raamwerk uitmekaar gesaag en vir my twee kar ramps daarvan gebou wat tot nou onlangs nog in my besit was.



My volgende poging was 'n trike. Ek het 'n hang glider by iemand gekoop, weer 'n spul square tubing gekoop en vir my 'n trike raamwerk gebou. Ek het twee kettinsaag enjins gekry en agter, langs die sitplek monteer. Grassnyer wiele waarvoor ek behoorlike ball bearings laat installeer het. Die swivel bo by die vlerk was net dit - 'n swivel wat na alle kante toe kon tilt.

Wel, op 'n dag neem ek haar agter by Sasolburg se fabriek area na 'n stil grondpad waar ek kon opstyg. Natref se sekuriteits beamptes het my gesien en 'n hele paar van hul bakkies het my gevolg om hierdie skouspel te kom dophou.

Hoekom ek vandag nog leef is dat die klein grassnyer wieletjies nie met die klipperige grondpad kon cope nie. Nes ek spoed begin optel het, het die klippe weer my spoed gebreek.


So het ek baie ander sulke staaltjies om te vertel. Hier is ek vandag, ek het my deel van pret met "seat of your pants" vlieg gehad. Party word gebore met 'n begeerte om in die lug te wees. Dit was nie oorgedra nie, dit het sommer maar net "gekom"

Daardie begeerte wil maar net nie weggaan nie. Ons is nou meer wys en weet waaroor vlieg gaan. Al die interaksie met ander wat ook vlieg leer mens baie dinge. Ek is nou maar eenmaal ligte vliegtuie gewoond - nee, eerder micro ligte vliegtuie en ek wil dit graag so hou. Hulle is net soveel veiliger as mens hou by dit wat jy geleer is en ten minste sal ek hierdie keer erens heen kan gaan en nie vir honderde kere agter mekaar oor en oor dieselfde roete doen nie! Rhinopark - Brohorstpruit dam - Rhinopark. Een keer twee aan boord van Vanderbylpark na Sakkie Hallgreen net langs Lanseria en terug in 'n MXII en een keer vanaf Rhinopark na Loskop dam en terug met 'n Mizer. Laaste keer van Rhinopark twee aan boord in erg winde na Witbank om 'n MXII by nuwe eienaar af te lewer.

Nou hopenlik Pretoria na Margate en terug naweek na naweek!!! Ek sien so uit daarna.

Groete,

Henni
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Re: Rotax 582 performance mod

Postby Henni » Fri May 16, 2014 1:00 pm

Hi all,

Here is another funny story on how I started flying. Remember that this was during the 1970's. I knew NOTHING about flying, never saw or knew a homebuilt plane or even knew that the idea existed. Yet I wanted to fly!

I bought this hang-glider from someone. Was working at Welkom at the time. Very, very flat area. So one day I loaded this hang-glider on my roof & drove off to find a sort of a mountain from which to launch. After driving for many kms, I found a little koppie on some ones farm. Asked the farmer permission to use it & his only concern was as long as I do not kill myself, it's okay.

I was there all by myself. Carried this hang-glider up the koppie & assembled it there. Right at the bottom of this "koppie" was a rather deep quarry. I was not at all concerned about it as I intended to be flying long before I reach it.

So, I strapped myself into my flying machine and started running down this koppie as fast as my legs could carry me. I knew nothing about hang-gliding & was pushing the bar way to the front whilst running down.

Of cause I was stalling all the way & when I reached this quarry, down plunged I with my flying contraption & all. Got a stained ankle as a result. Was no one there to help, so I assembled my flying machine in my injured condition & sneaked away before the farmer could see me. Yet I was determined as ever to fly...

Keep well all,

Henni
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Re: Rotax 582 performance mod

Postby Henni » Fri May 16, 2014 1:11 pm

Hi all,

So, now I come up with a better idea. My friend has a six cylinder 1300 Kawasaki. I approached him for help. Bought myself a nice long rope & head out to the veld with my friend.

Strapped myself in, had him tie one end of the rope behind his Kawa, the other end to the top of the triangle bar of the glider and tell him to pull with everything his Kawa has. I think we tried five or six times. The reason I'm alive today is that I could not get off the ground. I kept falling forward with the nose of the glider dug firmly into the ground.

I only read long afterwards how many were killed by attempting this and of the special harness required to do this with and how the pull from the vehicle keeps on increasing the climb or turn unless connected to the correct harness. Yet I still persisted: I want to fly...

Keep well all,

Henni
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Re: Rotax 582 performance mod

Postby John Boucher » Fri May 23, 2014 12:20 am

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Re: Rotax 582 performance mod

Postby Henni » Fri May 23, 2014 1:54 pm

Hi,

Tx for the link mate. I'm willing to try this engine. I'm already committed to it. I'm sure it'll make more power than my current 532. So I have 64hp. If I can get even 10 more, it'll be a bonus. Plus it has dual ignition, better carbs and a better gearbox. I'm actually really looking forward to try it. I now have a 532, 582 and a 583. Sure I'll find what I need between the three of them.

Just came from the Airplanefactory. Wow, I'm amazed by what I saw. They were getting ready to deliver 4 aircraft to Namibia today, so saw a lot of flying activity. Never realized those four stroke Rotaxes were so small. Pity they're so expensive. I'm truly amazed by the build quality of the Sling.

Anyways, keep well all,

Henni
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Re: Rotax 582 performance mod

Postby SHARKFIN » Mon Jun 02, 2014 9:05 pm

Hi Hennie,

I just recently started following your passion and commitment to building your plane linked to the quest of getting the cheapest and best power to weight ratio engine.
I do not want to sound like I know it all but I have some aeronautical maintenance back ground and linked to that I went on the same power and price quest and eventually I listened to the guys who knows a lot and specialises in it for a living. I ended up with the 618 for my trike.
There is a big difference between the 582 and the 618 e.g. the 618 has a bigger crankshaft with a longer stroke. The cylinder head then has the rave valves incorporated as a moulded assembly. A very strong engine and it utilises the 582 pistons and carbs, referring to the sub assembly only. All the of the accessories are 582.

My advise to you is that if you are going through all this effort of building a smart plane you should not skimp on the most important part of the finished product. Surely you would want to feel safe while flying? Do not mess around with snow mobile motors with single ignitions etc.
Go for the known brands e.g. Rotax 4 stroke, Jaberu, Simonini and why not the Aero V (VW).
I would hate to see your passion destroyed due to experiments with alternative non proven aero motors just to save some money in the short run. In the sales section on the forum there were 2x Rotax 912 4 stroke's for sale for around R90k each.
My 2 cents worth.

Enjoy the project.
Regards
Jacques
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Re: Rotax 582 performance mod

Postby John Boucher » Mon Jun 02, 2014 9:24 pm

For a No 2 post .... ^*^^

Sharkfin... you moered the nail on the head!
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Re: Rotax 582 performance mod

Postby SHARKFIN » Mon Jun 02, 2014 9:38 pm

Thanks John. I have learn that we all need mentors when it comes to live and especially flying.
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Re: Rotax 582 performance mod

Postby Henni » Tue Jun 03, 2014 6:35 am

Hi all,

Thank you for all the advice. I hear what you say. Unfortunately, I have not as yet seen a 618 advertised. As for the others, a little more than I could afford for now. Any VW derivative is out as it destroys my quest for being very light.

However, I see that life keeps on changing & maybe I'll have a better engine soon. But for now, I simply have to build for what I have. If push comes to shove, I can always use my standard Rotax 582. There are many flying with good results. Then later, when I have a better engine, I'll just replace with the one that would be in at the time.

As for the 583, please note that it does have dual ignition. From everything I've read, it is a 582 with better carbs, variable timing dual ignition, rave valves & a 618 tuned exhaust system. So, it should be no worse than a standard 582 and if not pushed to it's limits, it might even yield the same lifespan. I intend using the extra power only to get away from the ground initially in a two-up configuration. Thus I require the extra power for no more than a minute or three at the very most. My quest is not so much more speed, but better take-off performance. I've never run any of my Rotaxes hard and have often been complemented for my throttle control.

I had the opportunity to get a 165hp 296lbs Continental IO-346 - and I nearly went for it! But then she will no longer be super light and this is what I'm really after. As for the Rotaxes: I got the 532 for a VERY good price, that's why I went for it. The 582 I received as a deal where I swopped my tourer bike for a 582 Aqualla. And I'm still busy paying for the 583.

So once again, tx for the info mates. I promise that as soon as I can afford, I'll get rid of my three Rotax two stroke engines & use something more reliable instead. If I had the money right now, I would most prob opt for the Simonini.

Cheers,

Henni
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Re: Rotax 582 performance mod

Postby John Boucher » Tue Jun 03, 2014 6:57 am

Buy Louis Cole's trike ZU-CEX, use the 618 for your project and put the 582 on that and then sell the trike again?
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Re: Rotax 582 performance mod

Postby Henni » Tue Jun 03, 2014 7:04 am

Ha John,

Good idea if I had the cash floating around. Currently I'm paying for the 583 over two months. That keeps my funds tied up for awhile. Plus I NEVER go back on my promises & I cannot disappoint the seller now & also seeing that I've already made some payment towards it.

Not to worry though, I'll still be busy with my project for awhile. Maybe I can manage something else in the meantime. I think I'll put up my complete Aquilla 582 for sale. If that goes, I can save up the rest and maybe go for something better.

Tx for the advice my kind friend,

Henni
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