I tell you, sometimes the most basic videos are the most informative. I am embarrassed to confess that there’s been many times that I’ve used my exhaust as a ground when fueling. I really started thinking about it when I saw the teeth on some of the ground wires, and I did think about what kind of damage it was going to The exhaust. I didn’t think about the fact that there may not be connectivity between Airplane and the exhaust. This was extremely informative, and I’m definitely going to change my grounding practices ASAP! Thank you for sharing!
WOW. I didn't know this. I'm going to check mine. I've always used the exhaust. Thinking I might switch to the tie down. Thanks for taking the time to post this great information.
I refueled aircraft for almost 20 years. You don’t ground the aircraft when fueling. You do what’s called bonding. By bonding you bring both the aircraft and fueling vehicle to the same static charge. Your not wrong about the exhaust being a great bonding location
That’s concerning to me as I watch the fuel truck at the airport always attach their ground lead to my exhaust pipe. This video should be sent to every FBO. Great video!
The engine should be bonded to the airframe and is a requirement. This is only showing that the particular aircraft is not airworthy. A lot of misinformation here. If anything, use this explaination to check if your aircraft is properly bonded and whether you would want to fly it.
Your wrong the exhaust pipe is a good place to ground. The exhaust is connected directly to the engine and the engine is grounded to the airframe with a grounding strap if you don't have any continuity between the tank and the exhaust pipe you have other problems
This was very informative. Years ago, I used to ground to the tow bar area on the front landing gear. I switched to the exhaust but will be going back to the landing gear.
Not sure I understand why a crocodile clip would damage an exhaust any more than it would damage a tie down or part of the gear. However, I can see it’s well worth checking if the exhaust has conductivity with the airframe if that is your choice for the grounding. Thanks very much for getting us thinking about the subject.
The POH will have your bond to ground locations. Most aircraft will have ground lugs or plugs for you refueling needs. Aircraft to ground, Truck to ground, and nozzle to aircraft, During 133 external load operations we let the new guy grab the hook =)ZaP(= such fun. Just the fuel exiting the nozzle can change potential . . .Your power plant should have airframe ground straps Both for electrical power generation, mags, instrumentation & lightning protection.
I use to connect to the exhaust until one day I taxied away from a fuel pump with the ground connected, Really thought I had damaged something but the ball joint on my exhaust saved me, I think. Never did that again. I had been trained to connect here though!
There is a lot between that exhaust tip and the ground strap to add resistance to the circuit you are trying to make. Exhaust gaskets, coatings, corrosion. The exhaust gaskets alone mean the power has to flow through the bolts at the flange. If the flange is coated or that interface is corroded, resistance goes up. Then what is on the threads? Etc.
I don't fly/ fuel planes, I haven't even flown in a plane before, but I could watch a million of videos in a row. Thank you for putting in the time and effort to make these videos
I've tested many aircraft and have generally found the exhaust to be grounded. However, an old corroded looking exhaust is likely a poor ground. My problem is there is no standardized ground for most GA. Most other locations are painted over unless it's worn away. As an aviation refueler I hate that it's a guessing game without metering each aircraft.
I tell you, sometimes the most basic videos are the most informative. I am embarrassed to confess that there’s been many times that I’ve used my exhaust as a ground when fueling. I really started thinking about it when I saw the teeth on some of the ground wires, and I did think about what kind of damage it was going to The exhaust. I didn’t think about the fact that there may not be connectivity between Airplane and the exhaust. This was extremely informative, and I’m definitely going to change my grounding practices ASAP! Thank you for sharing!
WOW. I didn't know this. I'm going to check mine. I've always used the exhaust. Thinking I might switch to the tie down. Thanks for taking the time to post this great information.
For static discharge while fueling, The exhaust pipe is good enough. It has been done millions of times with no problems..................
The POH for my little Beech Sierra says to ground to the airframe. I use the tiedown rings. Cirrus, on the other hand, says to ground to the exhaust.
I’m always learning something, thanks so much for sharing.
Been flying since 1980.
I refueled aircraft for almost 20 years. You don’t ground the aircraft when fueling. You do what’s called bonding. By bonding you bring both the aircraft and fueling vehicle to the same static charge. Your not wrong about the exhaust being a great bonding location
That’s concerning to me as I watch the fuel truck at the airport always attach their ground lead to my exhaust pipe. This video should be sent to every FBO. Great video!
The engine should be bonded to the airframe and is a requirement. This is only showing that the particular aircraft is not airworthy. A lot of misinformation here. If anything, use this explaination to check if your aircraft is properly bonded and whether you would want to fly it.
When he said “grounding” I knew something was up. We are bonding, not grounding.
Excellent video captain!
Your wrong the exhaust pipe is a good place to ground. The exhaust is connected directly to the engine and the engine is grounded to the airframe with a grounding strap if you don't have any continuity between the tank and the exhaust pipe you have other problems
*You're
@@cdeggz He's being possesive
This was very informative. Years ago, I used to ground to the tow bar area on the front landing gear. I switched to the exhaust but will be going back to the landing gear.
Good Information. Thank You
That plane should have a ground strap at the rubber idolater.
Not sure I understand why a crocodile clip would damage an exhaust any more than it would damage a tie down or part of the gear. However, I can see it’s well worth checking if the exhaust has conductivity with the airframe if that is your choice for the grounding. Thanks very much for getting us thinking about the subject.
The POH will have your bond to ground locations. Most aircraft will have ground lugs or plugs for you refueling needs.
Aircraft to ground, Truck to ground, and nozzle to aircraft, During 133 external load operations we let the new guy grab the hook =)ZaP(= such fun. Just the fuel exiting the nozzle can change potential . . .Your power plant should have airframe ground straps Both for electrical power generation, mags, instrumentation & lightning protection.
I have always wondered about this and have never said anything. Now I know. Brining my multimeter to my next flight!
We want bonding, not grounding. We are bonding the airframe to the fuel farm tank to eliminate electrical potential.
Is the fuel farm tank grounded?
@@cdeggz of course
@@HongyaMa Then what is wrong with grounding the plane with the grounding wire. Seems it would be bonding and grounding at a fuel farm.
@5:20 I always ground it to that elbow sticking out to the left there off the gear. Why anyone would ground to the exhaust is beyond me!
on some planes it is the only exposed metal
I use to connect to the exhaust until one day I taxied away from a fuel pump with the ground connected, Really thought I had damaged something but the ball joint on my exhaust saved me, I think. Never did that again. I had been trained to connect here though!
Conductivity. Not conduction.
But why is the pipe not connected to the frame???
This just means your engine isn’t bonded to your airframe.
Every airplane I have ever seem had a dedicated, large, ground strap attached to the airframe.
There is a lot between that exhaust tip and the ground strap to add resistance to the circuit you are trying to make. Exhaust gaskets, coatings, corrosion. The exhaust gaskets alone mean the power has to flow through the bolts at the flange. If the flange is coated or that interface is corroded, resistance goes up. Then what is on the threads? Etc.
🤯
I don't fly/ fuel planes, I haven't even flown in a plane before, but I could watch a million of videos in a row. Thank you for putting in the time and effort to make these videos
Great demonstration. Learn something today. Glad I didn’t blow up a lot in the past.
I've tested many aircraft and have generally found the exhaust to be grounded. However, an old corroded looking exhaust is likely a poor ground.
My problem is there is no standardized ground for most GA. Most other locations are painted over unless it's worn away.
As an aviation refueler I hate that it's a guessing game without metering each aircraft.