If you've more than one vario, the drifts impairs each other . Try to work without any equalizing tanks in the pipe-system wich is involved in the total energy system..
See this - sorry it's in german.
world wide web.streckenflug.at/download/instrumenteneinbau.pdf
It's known as stick lift, and as you will have found out it's almost impossible to fly with. It happened to one of my dad's gliders, he found that there was water in the TE system, but the problem was solved after he used a vacuum cleaner through the pipes. This was a drastic measure, it may will be fixed by just letting the glider "air out" in the trailer for a few days. I'd definitely speak to somebody at your airfield with knowledge on instrumentation, they should be able to help you fix it.
Thanks so much for all the responses. I agree with many of you that it seems like a restricted tube somehow because I have tested for leaks and it is air tight. It works but just 3 seconds behind reality. Will keep working on it and let you know what it turns out to be. Thanks again. Bruno - B4
Hi Bruno, no comment on this video, but congrats on your 1,000 point day at the 15 meter nats! Way to go! Take good care of Tobin and his Jantar at your gliderport. I've got a couple of Contours, also. Lee from Air Sailing
@Cobraseven007 Thanks so much for the congrats. It was extremely fun to fly my first Nationals and really enjoyed meeting all the top pilots. Will take good care of Tobin.
..... That is the response with a constricted tube to a TE probe is slower but still properly compensated.
To test for leaks, you had to disconnect tubes. Is it possible that you do have a leak, but at a point not tested because you broke the circuit at that point?
Could the vario itself be leaking through its case, or inside?
I can't make out upper right hand instrument. Is it another vario? What does it do? Can you swap them, or disconnect (plugging unused tubes) one to test other?
Very strange. No response for a few seconds as though TE is working, then the big stick thermal. Same response to dives.
When it was working before, did this vario (configured the same way) indicate lift with the same delay as in this vid to real thermals ? When and how did it respond if you flew straight through a narrow core?
Is this vario electronically compensated from the Pitot, or is it a one port, connected to a TE probe?
A constriction would only lengthen delay to real lift.
Bruno - seems like a constricted tube, partial blockage (watch out for mud-dauber wasp deposit - I had one last week) or if your TE tube end points down, point it up. Hope you can fix it, must be a pain. ATB Bill
maybe the problem is the position of the tek ... ( looks like vario goes up with the changing airflow around the plane when nose goes down again) fliegergruß aus hamburg.ed ps: years ago i worked at peschges variometer...
Could be a diaphram issue or something similar related as it is slow to respond and seems to show the stick thermal a few seconds after your inputs, i.e you pull up and a couple of seconds later it shows climb and then as you push the nose over it registers max climb then peters out. I would have the system checked over.
If you've more than one vario, the drifts impairs each other . Try to work without any equalizing tanks in the pipe-system wich is involved in the total energy system..
See this - sorry it's in german.
world wide web.streckenflug.at/download/instrumenteneinbau.pdf
rheinbit 1 month ago
Bruno...did you get your TE problem fixed? If so, what did you find? Or, did you just sell the glider to solve the problem? ;)
alstonbk 1 month ago
@alstonbk Sold it... :)
bviv 1 month ago
It's known as stick lift, and as you will have found out it's almost impossible to fly with. It happened to one of my dad's gliders, he found that there was water in the TE system, but the problem was solved after he used a vacuum cleaner through the pipes. This was a drastic measure, it may will be fixed by just letting the glider "air out" in the trailer for a few days. I'd definitely speak to somebody at your airfield with knowledge on instrumentation, they should be able to help you fix it.
MrTumnus8896 6 months ago
set your electrical compensation (tek) to 0%, see what changes...
frankhiemstra 6 months ago
Hi Bruno, looks like the same effect I had when the connection of my TE tube was clogged. (the metal part that sticks out of the fintail)
There appeared to be some grease inside. Cleaned it up wit a cotton-stick and the problem was solved.
domenica1968 6 months ago
Glad to see there is no more cold weather, here in texas its 112 degres and the wind ads 5 more degres so like 117..... and no clouds
K0S0s 6 months ago
Thanks so much for all the responses. I agree with many of you that it seems like a restricted tube somehow because I have tested for leaks and it is air tight. It works but just 3 seconds behind reality. Will keep working on it and let you know what it turns out to be. Thanks again. Bruno - B4
bviv 7 months ago
Hi Bruno, no comment on this video, but congrats on your 1,000 point day at the 15 meter nats! Way to go! Take good care of Tobin and his Jantar at your gliderport. I've got a couple of Contours, also. Lee from Air Sailing
Cobraseven007 7 months ago
@Cobraseven007 Thanks so much for the congrats. It was extremely fun to fly my first Nationals and really enjoyed meeting all the top pilots. Will take good care of Tobin.
bviv 7 months ago
..... That is the response with a constricted tube to a TE probe is slower but still properly compensated.
To test for leaks, you had to disconnect tubes. Is it possible that you do have a leak, but at a point not tested because you broke the circuit at that point?
Could the vario itself be leaking through its case, or inside?
I can't make out upper right hand instrument. Is it another vario? What does it do? Can you swap them, or disconnect (plugging unused tubes) one to test other?
metalphiliac1 7 months ago
Very strange. No response for a few seconds as though TE is working, then the big stick thermal. Same response to dives.
When it was working before, did this vario (configured the same way) indicate lift with the same delay as in this vid to real thermals ? When and how did it respond if you flew straight through a narrow core?
Is this vario electronically compensated from the Pitot, or is it a one port, connected to a TE probe?
A constriction would only lengthen delay to real lift.
metalphiliac1 7 months ago
Bruno - seems like a constricted tube, partial blockage (watch out for mud-dauber wasp deposit - I had one last week) or if your TE tube end points down, point it up. Hope you can fix it, must be a pain. ATB Bill
beebee766 7 months ago
try rigid nylon tubing instead of the usual soft stuff.
agltoo 7 months ago
maybe the problem is the position of the tek ... ( looks like vario goes up with the changing airflow around the plane when nose goes down again) fliegergruß aus hamburg.ed ps: years ago i worked at peschges variometer...
anfluginfo 7 months ago
Crimped tube? Bug caught in Static port?
ysflightman 7 months ago
@ysflightman Yeah good idea to check the ports for damage, leaks or bugs... I am still going with diaphram issues
lhitchins 7 months ago
0:00 - 0:01 iphone????
PolarCry 7 months ago
Is a tube getting crimped?
Helicopterpilot16 7 months ago
Could be a diaphram issue or something similar related as it is slow to respond and seems to show the stick thermal a few seconds after your inputs, i.e you pull up and a couple of seconds later it shows climb and then as you push the nose over it registers max climb then peters out. I would have the system checked over.
lhitchins 7 months ago
It is quite slow! Really wierd...
Matcham11 7 months ago