gandalph Posted August 25, 2015 Share Posted August 25, 2015 This is an old video. And your point is? Link to comment Share on other sites More sharing options...
Chris Tarran Posted August 25, 2015 Share Posted August 25, 2015 This is an old video. Jan 2014. Thought is was relevant in light of posts 1120 & 1125. 1 Link to comment Share on other sites More sharing options...
Oscar Posted August 25, 2015 Share Posted August 25, 2015 Good grief - is there a rash of destroyed Jab 230's from damn fool attempted beach take-offs in Enzed? I know we Aussies tend to be a bit patronising of our small-island brethren, but I certainly wasn't aware that I should refer to that particular incident as 'one of' their recent stuff-ups.... 1 Link to comment Share on other sites More sharing options...
frank marriott Posted August 25, 2015 Share Posted August 25, 2015 Microman, I hereby bet you that my Jabiru can take off in less than 300 metres. Are you up for a grand ? The loser donates $1000 to this site. The winner gets a warm glow from being right. Bruce , After you rip a $1000 of him I'm up for it as well, but I will keep the $1000 for future fuel purchases. Link to comment Share on other sites More sharing options...
dazza 38 Posted August 25, 2015 Share Posted August 25, 2015 And your point is? My point is that it has already been posted on here. Link to comment Share on other sites More sharing options...
Oscar Posted August 26, 2015 Share Posted August 26, 2015 True - but as visual evidence of the text (eventually) referenced in post #1130, it is a good reminder to consider the reliabilioty of the postulations on Jabiru engines of someone who might have made all of the cumulative mistakes admitted by the author of that piece with full knowledge of how really far off the mark some people can get. To put it more simply: would you trust the opinion of someone who has demonstrated that they are a f#ckwit? Obviously, we cannot sheet that condition home to Ornis, of whom we have NO evidence he was the PIC in a take-off that would feature in a Mack Sennet film. But he might like to enlighten us as to just who was the idiot... 1 1 Link to comment Share on other sites More sharing options...
Ada Elle Posted August 26, 2015 Share Posted August 26, 2015 Go look at the figures - which are the result of certified/ certificated testing. J230-D: ground roll 226 metres (0.14 miles) , to 50 feet: 356 metres. That is at MTOW, at an ICAO 'standard' ambient temp and zero AMSL. Achieved by professional test pilots to CASA standards, for the POH. Before you start bagging out an aircraft, perhaps you should look at what its real performance figures - under certification/certifying conditions - are. The POH figures are not just drawn out of a hat - they are legally defensible results drawn from testing under specified conditions by approved test pilots. ... with a brand new engine, that's not a little bit down on compression, and making full RPMs... (I've flown a jab that refused to beat 500fpm climb continuous, despite what the POH says, and that would have been at a speed that would have soaked in a bit of heat into the engine too). How many Jabs are flown at a 0 density altitude? I would think that your average Jab takeoff is in >500ft of density altitude. Link to comment Share on other sites More sharing options...
microman Posted August 26, 2015 Share Posted August 26, 2015 Perhaps I should have been a bit more specific in my sweeping assertion (slightly tongue in cheek) about Jabs climb rates - to be fair the ones I have seen have mostly been the earlier short-wing models with the 4 cylinder engine. - the later ones with the 6 cylinder engine are clearly very much improved - however Oscar's suggestion that pilot ability (or lack of it) is a factor is nothing more than a red herring - all the skill in the world cant overcome a lack of performance! Link to comment Share on other sites More sharing options...
SDQDI Posted August 26, 2015 Share Posted August 26, 2015 That's what my wife says:blush: 3 Link to comment Share on other sites More sharing options...
Bruce Tuncks Posted August 28, 2015 Share Posted August 28, 2015 Microman, you will be pleased to know that mines an old one ( 1998) with short wings. There is a picture of it in front of you. So you will be taking the bet? Link to comment Share on other sites More sharing options...
Russ Posted August 28, 2015 Share Posted August 28, 2015 Perhaps I should have been a bit more specific in my sweeping assertion (slightly tongue in cheek) about Jabs climb rates - to be fair the ones I have seen have mostly been the earlier short-wing models with the 4 cylinder engine. - the later ones with the 6 cylinder engine are clearly very much improved - however Oscar's suggestion that pilot ability (or lack of it) is a factor is nothing more than a red herring - all the skill in the world cant overcome a lack of performance! maaate.......stay in the shearing shed, and i'm SERIOUS....( "you" and a grain of salt, go well in the same sentence ) my lill old short winged, 4 cyl jab, home strip 2500asl, every single day, disproves your assetions here. ( maybe NZ air is super skinny stuff, maybe NZ props are paper mache.......gota be sumin going on there ) 1 Link to comment Share on other sites More sharing options...
Bruce Tuncks Posted September 17, 2015 Share Posted September 17, 2015 Whats wrong with shearing sheds? Here's the one I come over when I land at the farm on the 550m Nth Sth strip. If you JUST miss the shearing shed, you will stop before the fence at the far end. 1 Link to comment Share on other sites More sharing options...
jetboy Posted September 18, 2015 Share Posted September 18, 2015 Bruce, with an approach like that, aren't ewe cutting it a bit fine? 1 Link to comment Share on other sites More sharing options...
Russ Posted September 18, 2015 Share Posted September 18, 2015 oye......jetboy, ...........ewe trying to pull the wool over his eyes, or what...?? 1 Link to comment Share on other sites More sharing options...
highwing Posted February 6, 2016 Share Posted February 6, 2016 Does anyone know what is happening with the Jab operating limitations? Apparently CASA's Airworthiness department is happy with Jab engines now, but the limitations are still in force and I was wondering if anyone knows why? 2 Link to comment Share on other sites More sharing options...
jetjr Posted February 6, 2016 Share Posted February 6, 2016 12 pages of repeated dribble here http://www.recreationalflying.com/threads/jabiru-2016-update.145712/ Same people sayong same things, some still believe CASA did good work 1 2 Link to comment Share on other sites More sharing options...
gandalph Posted February 7, 2016 Share Posted February 7, 2016 Does anyone know what is happening with the Jab operating limitations? Apparently CASA's Airworthiness department is happy with Jab engines now, but the limitations are still in force and I was wondering if anyone knows why? Highwing, It is always harder, and takes much longer to stuff the genie back into the bottle than to let it out. Link to comment Share on other sites More sharing options...
facthunter Posted February 7, 2016 Share Posted February 7, 2016 Don't start something you can't stop or exit. If you do you are a Fw. and in the wrong job, but that should be able to be remedied. Nev 1 2 Link to comment Share on other sites More sharing options...
scre80 Posted June 8, 2016 Share Posted June 8, 2016 Anyone know of any updates on this restriction? It is due to expire in 3 weeks. All seems to have gone quiet. Link to comment Share on other sites More sharing options...
Camel Posted June 8, 2016 Share Posted June 8, 2016 Anyone know of any updates on this restriction? It is due to expire in 3 weeks. All seems to have gone quiet. Yes, very quite, I think casa want It quite so they can forget this bloody crap mess they made ! Reports I heard say if it stays quite it will go away, if it don't there will be a lot of noise ! Let's see, as I'm ready to make a lot of noise. 1 2 Link to comment Share on other sites More sharing options...
Jabiru Phil Posted June 8, 2016 Share Posted June 8, 2016 My source says that engines with latest mods will be exempt from the restrictions. The rest will stay as is. The "A" and "B" argument put forward by the honourable senator PHIL. Link to comment Share on other sites More sharing options...
Oscar Posted June 8, 2016 Share Posted June 8, 2016 That makes sense as a way for CASA to get out of the situation while everybody is looking at other matters (like Elections!), and gets the possibility of a Senate Inquiry off its back. Presumably, Jabiru will come out with a definition of 'compliant with latest mods.' - the latest release of the Engine Maintenance Manual should be adequate for that but I haven't studied it. You would certainly want to be absolutely sure your log-books are 100% ticketty-boo on the exact status of the engine before assuming you can fly without restriction as per the CASA notice. Link to comment Share on other sites More sharing options...
jetjr Posted June 8, 2016 Share Posted June 8, 2016 CASA would be busy writing apologies and compensation cheques wouldnt they? Problem is that to meet current specs would require full tear down and possibly no way forward for solid lifter models. Not sure where it leaves Certificated models who cant change anything much 1 Link to comment Share on other sites More sharing options...
Oscar Posted June 8, 2016 Share Posted June 8, 2016 Good point re the problems for owners of Certificated... this would be a VERY good time for the MARAP to get real, with a blanket approval process for the change-over. Link to comment Share on other sites More sharing options...
Jaba-who Posted June 8, 2016 Share Posted June 8, 2016 There would be the option for owners of old engines to send their engines back to jabiru to have them overhauled and upgraded. Or continue with the limitation if they want to avoid the cost. As much as that irks it is probably going to be the option that gives CASA the option with the least amount of liability. Link to comment Share on other sites More sharing options...
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