davidbray wrote:
I am now wondering how you make it as a Loadmaster... Look up the IA 63. the loaded weight is 7700 lbs. The MTOW is just over 11000 lbs. The L-29 is a smaller aircraft yes, but it still weighs over 7800 lbs at MTOW.
I make it fairly well as a loadmaster. I was not a stellar performer at all times in school but I ended up pretty good. Since you did ask, I will explain this real slow so I can be sure you understand it. Take the 8,000lbs you mentioned and subtract the 7,700lbs loaded weight. That is the basic weight of the plane plus the fuel, crew, and any load to be carried and all configured for a typical mission. Then we subtract. It gets tricky here so pay close attention. 8,000 - 7,700 = 300. That is 300lbs. The max takeoff weight possible for the airplane does not matter here since the one in the video is not carrying full stores. So, it is less than 8,000lbs.
If you want me to work out the numbers for the L-29, let me know and I will see if I can manage to do it. Remember you are the one that brought up the arbitrary 8,000lb airplane hurtling dangerously towards everyone. I do appreciate your concern but I think I have a pretty good grasp of this part of the business.
davidbray wrote:
As far as reaction times... a drag racer has an average reaction time of .080ish. So lets say since we aren't drag racers, our reaction time is at around a half a second. In that half a second at 400 mph the aircraft has traveled just under 300 feet. If we are around 500 feet from the taxiway (the most likely place for there to be a bobble) we have less than a second before the plane is on top of us. So now the question is if the plane were to bobble going over that taxiway, can you outrun the flames and the wreckage that are still traveling at over 350 mph at you? So I am going to stick with my reckless and dangerous statement.
I will admit that I know very little about drag racers so you have me there! But you are pretty good at this math stuff. You are right, that is 293.33335 feet. I am curious to know how you decided that the taxiway is the most likely place for a bobble to happen?
davidbray wrote:
As far as my involvement in aviation. I spent 3 years at school to get my bachelors in aviation maintenance. I had to leave for a semester at which point I spent a fall/winter as a lineman at an airport near here mostly fueling aircraft for UPS. In December while I was working there, I was run into by a small aircraft tug while hooking him up to a dolly (deicing fluid makes for slippery boots on smooth pedals.) I have spent that past 4+ years out of full time work, had a knee surgery, and tried with everything I've had to get back to my passion of aviation. While I am only a year away from my degree, I have no money to be able to go back and finish my degree. If it were up to me, I would have that degree and be working on getting experience so that I could someday be able to maintain warbirds like some of the guys on here. So if you please do not question my qualifications to say that this was a stupid maneuver. Quite honestly, since people like you exist (those who think that if it isn't against any rules it's no big deal,) people like me are even more important.
You have had a bad run of luck and I am honestly sorry about that. I do mean that and I do hope that things improve. I am also hoping that you are fortunate enough to have family and good friends that have stood beside you through this.
So your aviation experience amounts to: almost done with maintenance school, worked as a line boy, unfortunately got ran over by a tug. I am lost as to how this qualifies you to make any judgement on a flyby. You took a whole paragraph to confirm what I originally said about you. You sound like "somebody that has no involvement with flying as anything other than a passenger or maybe just a spectator."
davidbray wrote:
By the way, watch that HuD tape again. See the big MAX G pop up during their pull out? That as a maintainer throws some red flags to me personally. Sadly, the tape quality isn't good enough to show the exact value that they pulled.
As I understand it, MAX G is telling you that you are at the limit. Just like a stall warning horn. Nothing wrong with reaching those points, just do not exceed them. Much like your sideline "I was not there and really do not know anything about it" comments about the flybys, you also do not know if they did anything wrong, based on the tape quality.
davidbray wrote:
And finally, a safely performed low pass is just fine, when you don't have any room for error there is a BIG issue. And yes, I will stay away from low passes like this. I like my life, no matter how bad it can be at any point in time, and I have no intention of putting it on the line for some stupid adrenaline rush from a pilot who has got a HUGE case of machoism.
Lets use your math from the drag racing/low pass "gonna kill us all" scenario. If a plane is doing 250mph, it will be doing 366.6667 feet per second. Since we have rules for rounding in the loadmaster business, I will just say 367 feet per second. Say the pass is at 300 feet since that sounds like a fun number. Answer: It will take less than a second to hit the ground. Is that more acceptable to you?
I'll give you the formula so you can figure out what you think is a safe altitude/airspeed. Please let me and the rest of the class know what you decide.
y(mph) = x(ftpm) x 60 / 5280 = 0.113636364x.
davidbray wrote:
And now thanks to this stupid thread, I have a massive headache. Its like I'm banging my head against a wall.
Calm down David. It is just an argument on the internet.