Jabiru7252 Posted March 6, 2014 Share Posted March 6, 2014 Call me stupid; I cannot find any 'P' charts in any of my Jabiru documentation but I have been told they are there. So, can somebody enlighten me please? Link to comment Share on other sites More sharing options...
jetjr Posted March 8, 2014 Share Posted March 8, 2014 There is just tables and basic recommendations for TODR There are engine performance charts in the maint manual Link to comment Share on other sites More sharing options...
Jaba-who Posted March 12, 2014 Share Posted March 12, 2014 There are no published p charts for jabiru. Link to comment Share on other sites More sharing options...
Bob Llewellyn Posted April 10, 2014 Share Posted April 10, 2014 Call me stupid; I cannot find any 'P' charts in any of my Jabiru documentation but I have been told they are there. So, can somebody enlighten me please? Tempting, but I don't know you ... Does any other Jab jockey want some? Is it worth generating some? Link to comment Share on other sites More sharing options...
jetjr Posted April 10, 2014 Share Posted April 10, 2014 Some good work done in South Africa developing todr charts It would be a good tool if done correctly Problem may be that not all Jabirus are the same, as in many are kit built and even factory ones all differ in performance a little Also quite a few variants now 1 Link to comment Share on other sites More sharing options...
David Isaac Posted April 11, 2014 Share Posted April 11, 2014 Well LSAs and Certified are all factory built to a standard and should have Pcharts. Those of us who trained with Pcharts know they can tell you if you are likely to kill yourself on a takeoff or landing if you know how to use them. If we don't have Pcharts in RAA how can our training be equivalent to GFPT or what is to be call RPL? 1 Link to comment Share on other sites More sharing options...
jetjr Posted April 11, 2014 Share Posted April 11, 2014 Have a look at this Came from Avcom site in RSA, developed from theoretical numbers however tested with a number of J430 at various loads and they reckon its pretty good Good to see some big loads and high and hot DA to work with J430 take off distance calculator 030114.pdf J430 take off distance calculator 030114.pdf J430 take off distance calculator 030114.pdf Link to comment Share on other sites More sharing options...
Bob Llewellyn Posted April 11, 2014 Share Posted April 11, 2014 Well LSAs and Certified are all factory built to a standard and should have Pcharts.Those of us who trained with Pcharts know they can tell you if you are likely to kill yourself on a takeoff or landing if you know how to use them. If we don't have Pcharts in RAA how can our training be equivalent to GFPT or what is to be call RPL? The let-out is that very light aeroplanes are slow enough that you can eyeball the TOR / TOD; and it's true with the early ultralights - the minature Cessnoids, however, kind of invalidate the concept. The Aeronca Chief POH (it didn't have one) is a relic of the same philosophy. As the laws of physics are pretty reliable, there is a good process for modelling P charts, given only a few measured performance data points - the more you have, the less conservative the chart gets. Link to comment Share on other sites More sharing options...
Segal101 Posted August 7, 2014 Share Posted August 7, 2014 It's quite pathetic that Jabiru has been operating for 25 years , and yet no one has bothered to do a P-Chart calculation for the POH Link to comment Share on other sites More sharing options...
Jabiru7252 Posted August 7, 2014 Author Share Posted August 7, 2014 My Jab didn't come with a bar fridge:crying: Link to comment Share on other sites More sharing options...
Segal101 Posted August 7, 2014 Share Posted August 7, 2014 Lol hahahah neither did mine lol Link to comment Share on other sites More sharing options...
kaz3g Posted August 7, 2014 Share Posted August 7, 2014 Well LSAs and Certified are all factory built to a standard and should have Pcharts.Those of us who trained with Pcharts know they can tell you if you are likely to kill yourself on a takeoff or landing if you know how to use them.? I don't even have a manual for the Auster....crank on flap, push down hard on heels, open throttle and raise heels slightly...amazing :-) Kaz (Tongue in cheek ) Link to comment Share on other sites More sharing options...
Segal101 Posted August 7, 2014 Share Posted August 7, 2014 Hahaha well I did get some grace from the jabiru factory, when I called them which was .. don't take a jabiru into an airstrip that's shorter than 600m. And ,when I asked them about calculating TODR and LDR, he said to add 130m for each 1000 ft DA change from ISA to the figures in POH . Not very definitive , but it sure beats the other figures in the POH which is .. " nothing '!!! " Link to comment Share on other sites More sharing options...
David Isaac Posted August 7, 2014 Share Posted August 7, 2014 I don't even have a manual for the Auster....crank on flap, push down hard on heels, open throttle and raise heels slightly...amazing :-)Kaz (Tongue in cheek ) Behave your self Kaz ... they dont make P Charts short enough for Austers ... LOL Link to comment Share on other sites More sharing options...
jetjr Posted August 7, 2014 Share Posted August 7, 2014 Those numbers are in the POH going back a long time under take off and landing distances How accurate is a question however significant testing was done and actual data can be supplied by Jabiru especially for LSA models Link to comment Share on other sites More sharing options...
Segal101 Posted August 7, 2014 Share Posted August 7, 2014 Those numbers are in the POH going back a long time under take off and landing distancesHow accurate is a question however significant testing was done and actual data can be supplied by Jabiru especially for LSA models In the POH there are only 2 figures: a take off distance , and a landing distance in ISA . But no P-Chart. Can you direct me to where you found the chart? Is it in earlier models POH... Iv got a 2008 Jabiru 170-C Link to comment Share on other sites More sharing options...
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