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About Jabiru7252
- Birthday 23/09/1955
Information
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Aircraft
J170C, PA28, PA38, TB10, C172
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Location
Gawler, SA
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Country
Australia
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Jabiru7252's Achievements
Well-known member (3/3)
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Jabiru7252 started following Crash at Boonah Golf Course 14/01/2024 , Laser welding for home building , Nearly a crash? Helicopter appears out of control? and 5 others
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Laser welding for home building
Jabiru7252 replied to Geoff_H's topic in Aircraft Building and Design Discussion
laser headlights consist of one or more solid state laser diodes mounted inside the headlight. These blue lasers are fired at a yellow phosphor, similar to that used in white LEDs. This produces a powerful, vibrant white light that can then be bounced off reflectors and out of the headlights towards the road. Laser headlights built in this way have several benefits. They’re more energy efficient than LEDs that put out the same amount of light, while also being more space efficient, too. Just in case you (like me) had never even heard of laser headlights. Sorry about the weird text formatting, not my fault... -
I'm convinced that many planes, gliders included, go into stealth mode when viewed from above. On many occasions I have tried to sight a plane that's maybe a few hundred feet below me at (say) my 3 o'clock but been absolutely unable to find it. This occurs almost exclusively over the suburbs but has also happened over dry paddocks. Another sign of old age perhaps?
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Not so, the door cannot open enough to cause any problems because of the slip stream. I flew to Tumby Bay from Parafield with the door open in a PA28.
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Gee whizz, I must be silly. I thought the diodes converted the AC voltage to DC (rectification). The regulator then 'regulated' the voltage and/or current to charge the battery. The term "high voltage AC current" is meaningless to me. The alternator generates an 'alternating voltage' that when applied across a load will cause an 'alternating current' (AC) to flow. Maybe in this world of LGBT rubbish the electronic theory I was taught has been 'cancelled'.
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It's hard to smash your head into a low wing...
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Parlous State of Spin Knowledge and Training
Jabiru7252 replied to djpacro's topic in Student Pilot & Further Learning
Back in the late 70s industry said 'give us a plane we can spin and stall' for flying training. Piper came up with the Tomahawk and Beechcraft with the Skipper. These planes are hard to tell apart. I did stalls, spins and spiral dives in the Tomahawk and one day I read that a Tomahawk lost its tail during a spin and so no more spinning the things. I have never really liked 'T' tails - they always look flimsy to me. -
This is a typical question for the foundation Ham Radio License... There was a time when being a 'Ham' meant you knew all about radio, radio wave propagation bla bla bla. Not any more ☹️
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Be it a website or an app, any good developer should remember "DON'T MAKE ME THINK" when they design the user interface. If the user has to dick about trying to nut out things the design needs changing.
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Crash at Boonah Golf Course 14/01/2024
Jabiru7252 replied to HeliPilot70's topic in Aircraft Incidents and Accidents
what what what what? -
Car vs plane Sydney 22-01-2024.
Jabiru7252 replied to red750's topic in Aircraft Incidents and Accidents
Probably a moron driving the car, becoming common these days. -
Crash at Boonah Golf Course 14/01/2024
Jabiru7252 replied to HeliPilot70's topic in Aircraft Incidents and Accidents
Stalls and spins were scary but I hated spiral dives. Did a few in the Tomahawk in the early 80s. Don't think anybody does them these days. -
Crash at Boonah Golf Course 14/01/2024
Jabiru7252 replied to HeliPilot70's topic in Aircraft Incidents and Accidents
Heh? What makes you say that? -
the meaning of the initials qnh
Jabiru7252 replied to BrendAn's topic in Student Pilot & Further Learning
I must have suffered a brain bubble because I can't make sense of your post. Can you 'expand it' for me? And type slowly because I'm a slow reader...😄