planesmaker

Recently updated iPhone 4 to ios7. Big mistake. Phone is really slow for data now. Any way to go back? Tom

My wife loves to come flying with me, although not interested in learning to fly. Quite regularly put the kids in the back and go for a picnic somewhere. When we were short of funds I suggested we sell the jab( I built) but she would not be in it. Very blessed. Tom

Thanks Dafydd I learnt something about thermocouples from reading your post. Tom

"As always we see comment about how good the 912 is, however just 20 hp short of powering many Jabirus. My point being, the arguabley most popoular and universally aclaimed fuse in australian RAA aircraft, j230, canot be powered by the engine rotax supporters promote." I disagree jet jr. A 912s will perform equally or better than a jab 3300 in a 230 airframe if fitted with a CS prop. I regularly take off using only 100hp at a higher gross wt than RAAus allows with more than acceptable performance. ie 650kg with 800 plus ft/min. There are many airframes of similar wt to the j230 that perform well with the 912s. Tom

"show us a perfect aircraft" Hey Oscar here's a pic of my near perfect aircraft :)

I hope to go to Narromine in September, about as close as I'll be for a while. Be happy to show you over it. I am just one very happy Jabiru owner. Tom

Sorry to read your rant Deadstick. I do think the Jabiru airframe is a good, well tested airframe( including spin testing and drop testing etc) which we certainly would not have if it was not for Rod. Credit where credit is due. Tom

Deadstick A friend of mine was the policeman in charge of the original search. He had lots of witness statements and reams of information. However he passed away several years ago and I am unsure if his widow had kept the records, I think maybe not. Peter was consumed with finding MDX right up to the end. I have been to search several times however it is a fair distance for me. I plan to be in the area again next month but just to have a look with my family. Regards Tom

After reading this thread I thought it best to find out just how much height is lost in a turn back (210' plus 30') in my J400. At 3500 over the strip with one notch of flap at 70kts I pulled the power waited just a bit and pulled it into about 45' bank turn. The result in a lightly loaded condition was 500 ft. I think it's a reasonable policy to make no turn backs before turning crosswind( not talking gliders). After turning crosswind then there is a much smaller angle to turn through though a good paddock if available could still be the better alternative. If climbing straight ahead then I would consider 1000' to be a minimum before considering turning back. It really is a matter of repeated training to reinforce this response in pilots. Even at 1000' a pilot can come undone by stalling it in the turn under the stress of the situation. After a local fellow was involved in a fatal seemingly stall/spin accident I took the local RAAus instructor flying just to try and get the jab to do something nasty. We tried all sorts of stalls, power on power off,flaps, full flaps , turning stalls, crossed control stalls. We really tried to get it to bite. All I can say is thank you Rod Stiff for making a very safe airframe. We were both duly impressed with the handling of the Jab. I know that this thread is about EFATO however I would like to suggest the stall/spin turning onto final is a very close relative which also needs addressing. Tom

Very concerning. Those who have witnessed his flying, perhaps a call to operations may be in order? As it appears he does not accept help(even free!)from a CFI. Before something more serious happens. Tom

The sump vent should be vented to the top of the tank or into the wing tank vent system. Yes the vent tube will have fuel in it but the top should be above the fuel level in wing tanks and should have continual rise from sump with no dips to allow the air to rise and not get trapped. Tom

I would think the header tank should have a seperate vent back to one or both tanks. Tom

Pmc have you seen any low wing birds?

Yes I agree it is critical. The point I'm making is that a WCO is not necessarily required to do the weighing, well that's how I read it. I am open for correction. Tom

Seems funny to me that the only mention of a weight control officer is where the aircraft is not required to be weighed! Tom

If we read that CAO 100.7 correctly it does not specify the weighing must be done by a WCO. Otherwise 3.1(3) would make no sense if a WCO was doing all the weighing. I can just see it now CASA telling someone authorised by them that their figures are dubious go and do it again. Reminds me of primary school. Tom

I see the problem. The moment of empty aircraft is worked out using mm (347.06mm) and you are using metres in working out moment for loading. Convert these to mm and problem solved. PS 1% MAC = 12.67 mm aft of datum 35% MAC = 12.67 x 35 = 443.45 mm Tom

JN, Ok we also need to know the wing chord in mm. It appears the datum is the LE of wing? Please explain just what you need to know. Tom

Dafydd, thanks for sharing your knowledge and experience with us all, I find it very interesting and educational. I have thought about using vortex generators on a project I have, however the marketing hype has now been put into perspective. Thanks. Tom

Alf if you take the water out of the glycol mix it boils at much higher temp. Straight glycol will boil at around 180'C I would suggest Evans would be up there too. Some setups have some marginal cooling and run close to the limits hence the reason rotax recommended Evans for those who maybe experiencing boiling. Tom

Hi Frank this may not help you as I don't have any answers to the problem. A friend had same problem with his jab it would falter on takeoff with elec pump off. I am not sure what he eventually found I know the Carby was rebuilt and filters changed. Can I suggest you change the electric pump as it maybe restricting flow somehow, or bypass it and do gravity fuel flow check with and without elec pump inline to see if it is the problem. Tom

I do believe the aircraft owner is responsible for having the aircraft maintained properly. Want to own and fly? Get an education about your responsibility and read the operations and tech manuals. Tom

I would like to know what aircraft they are in and how they are operated. Does seem odd they are from the same place. Tom

Rotax put out a service bulletin several years ago on it. They must be inspected regularly. It is important for maintenance people to check all current SB's when doing maintenance. Tom