![]() |
If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
Thread Tools | Display Modes |
#41
|
|||
|
|||
![]()
Robert M. Gary wrote:
On Aug 31, 7:40 pm, Mike Granby wrote: Another witness mentioned an engine sputter Whatever the cause of a crash, there's always someone who hears the engine splutter... All aircraft engines sputter, that's just the nature of how they work. They don't sound like BMV engines. Bull. I can easily tell a well-running aircraft engine from one that isn't running well. Matt |
#42
|
|||
|
|||
![]()
Dan Luke wrote:
"Robert M. Gary" wrote: On Aug 31, 7:40 pm, Mike Granby wrote: Another witness mentioned an engine sputter Whatever the cause of a crash, there's always someone who hears the engine splutter... All aircraft engines sputter, that's just the nature of how they work. They don't sound like BMV engines. Is it possible the pilot decided to abort after he was airborne? The engine sounded strong and the airplane came off fine at rotation, then it seems to run out of steam. Or was that simply due to its climbing out of ground effect? It definitely wasn't obvious from the vantage point of the camera. Could have been wind shear, coming out of ground effect too soon, engine trouble, etc. Matt |
#43
|
|||
|
|||
![]()
On Sep 1, 8:34 am, Matt Whiting wrote:
Robert M. Gary wrote: On Aug 31, 7:40 pm, Mike Granby wrote: Another witness mentioned an engine sputter Whatever the cause of a crash, there's always someone who hears the engine splutter... All aircraft engines sputter, that's just the nature of how they work. They don't sound like BMV engines. Bull. I can easily tell a well-running aircraft engine from one that isn't running well. So what? You've probably be near a running airplane engine. If you think that the common layperson can tell the difference between a good running airplane engine and bad running one than you should follow Alice to Wonderland. -Robert |
#44
|
|||
|
|||
![]()
Robert M. Gary wrote:
On Aug 31, 6:57 pm, Matt Whiting wrote: Jay Honeck wrote: http://fox40.trb.com/ In an amazing coincidence, a Sacramento TV station was at Cameron Park airport filming background for a story about the crash of a plane that had departed earlier in the day and caught a second crash on video. Go to the web site and click on "Cameron Park Plane Crash" on the right side. It sure looks like the pilot was taking off from a high-density altitude airport with no flaps, downwind. Wow, that was ugly. It looked like he was accelerating pretty good when he went past the camera, but just couldn't quite establish a climb. I did hear the one witness mention it being a downwind takeoff. Another witness mentioned an engine sputter, so it also sounds like it wasn't leaned at all for the altitude. Very unfortunate. Matt Even if it was 90 degrees outside, we're only at 1200 feet so the density couldn't have been monsterous. Well, at 90 degrees with an altimeter setting of 30.00 inches (I don't know what it was, this is just a guess) and a dewpoint of say 60 degrees (again just a guess), the density altitude is 3600 ft. This gives a substantial performance loss compared to sea level STP conditions. If he was at gross and really was taking off downwind, this could well have been enough to remove his margin. Matt |
#45
|
|||
|
|||
![]()
Jack Allison wrote:
Robert M. Gary wrote: Even if it was 90 degrees outside, we're only at 1200 feet so the density couldn't have been monsterous. -Robert A guy from the Cherokee Pilot's Association calculated DA at 4500. Not sure where he got the relevant info...maybe there's a local weather reporting station at someone's house in the area. Higher DA than normal but no, definitely not HUGE. I'm always using two notches of flaps in the Arrow when taking off from 3-4K ft. runways, any significant DA, or terrain such as exists at Cameron Park. This one will be interesting to follow up with when the NTSB report comes out. Sparky Imeson's rule of thumb here is a good reminder. He states that you should have 71% of your takeoff speed at the halfway point of the runway or abort the takeoff. My rule with the 182 was to be in the air by the halfway point. It was a very easy rule to follow. Matt |
#46
|
|||
|
|||
![]()
Dan Luke wrote:
"Jay Honeck" wrote: It sure looks like the pilot was taking off from a high-density altitude airport with no flaps, downwind. What's horrifying is how everything looks fine and then suddenly goes all wrong. Yes, that was my first reaction also. The airplane appeared to pass the camera with good speed, good acceleration and a good engine sound. It was incredulous to watch it go so wrong. Matt |
#47
|
|||
|
|||
![]()
Airbus writes:
What about watching this type of video - is it useful for our awareness as pilots? I tend to think it is, but that's just a personal opinion. Where I grew up, the State Police used to do an auto safety presentation every year to students who were about to get their driving licenses. They would show gory, shocking films of accident scenes, hoping to impress the young, future drivers. They don't do that any more, but I don't know if this is because they feel it was not effective, or because they are concerned it is no longer socially acceptable. . . I think it's too dramatically different from everyday experience, so the people watching the gory pictures tend not to identify with them, so they really don't have much effect. There's always the danger of being too over-the-top in safety warnings, such that people realize how improbable or exaggerated the risks are and then fail to pay attention to the parts that are truly relevant. |
#48
|
|||
|
|||
![]()
NoneYa wrote:
Maxwell wrote: "Jay Honeck" wrote in message ps.com... http://fox40.trb.com/ In an amazing coincidence, a Sacramento TV station was at Cameron Park airport filming background for a story about the crash of a plane that had departed earlier in the day and caught a second crash on video. Go to the web site and click on "Cameron Park Plane Crash" on the right side. It sure looks like the pilot was taking off from a high-density altitude airport with no flaps, downwind. -- Looks like he could have increased his odds a bit, if he had used the rest of the runway, and/or stayed in ground effect a bit longer. No flaps!! No lift!! No brain! Dumb post!! |
#49
|
|||
|
|||
![]()
On Sep 1, 8:41 am, Matt Whiting wrote:
Robert M. Gary wrote: On Aug 31, 6:57 pm, Matt Whiting wrote: Jay Honeck wrote: http://fox40.trb.com/ In an amazing coincidence, a Sacramento TV station was at Cameron Park airport filming background for a story about the crash of a plane that had departed earlier in the day and caught a second crash on video. Go to the web site and click on "Cameron Park Plane Crash" on the right side. It sure looks like the pilot was taking off from a high-density altitude airport with no flaps, downwind. Wow, that was ugly. It looked like he was accelerating pretty good when he went past the camera, but just couldn't quite establish a climb. I did hear the one witness mention it being a downwind takeoff. Another witness mentioned an engine sputter, so it also sounds like it wasn't leaned at all for the altitude. Very unfortunate. Matt Even if it was 90 degrees outside, we're only at 1200 feet so the density couldn't have been monsterous. Well, at 90 degrees with an altimeter setting of 30.00 inches (I don't know what it was, this is just a guess) and a dewpoint of say 60 degrees (again just a guess), the density altitude is 3600 ft. This gives a substantial performance loss compared to sea level STP conditions. If he was at gross and really was taking off downwind, this could well have been enough to remove his margin. I"m not sure where you fly out of but for most of us 3600' density altitude with 4000' of runway it not considered close. I take off out of there with 4 on board, a week's worth of luggage and enough fuel to reach Mexico or Canada (usually downwind because the socks on each end usually face away from each other). In short, this airport provides *LOTS AND LOTS* of margin, this is not a short-field or a "high- density altitude" airport by any stretch! BTW The pilot held a Comm, CFI, and A&P. -Robert |
#50
|
|||
|
|||
![]()
Airbus wrote:
I'm voting for overweight. After what appears to be a relativly long roll, you can see the plane mushing and stalling trying to climb. I saw the video on a computer without sound, so I don't know if they said how many people were on board, but this plane, even with no flaps, should climb out just fine. What about watching this type of video - is it useful for our awareness as pilots? I tend to think it is, but that's just a personal opinion. Where I grew up, the State Police used to do an auto safety presentation every year to students who were about to get their driving licenses. They would show gory, shocking films of accident scenes, hoping to impress the young, future drivers. They don't do that any more, but I don't know if this is because they feel it was not effective, or because they are concerned it is no longer socially acceptable. . . I think it is useful, but only once you know for sure what happened. Matt |
Thread Tools | |
Display Modes | |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
Oshkosh P-51 crash video | Frank from Deeetroit | Aviation Photos | 0 | July 30th 07 06:06 PM |
S-3 Crash Video | Sanderson | Naval Aviation | 0 | June 13th 05 10:22 PM |
Orlando Crash Video | Jay Honeck | Piloting | 35 | January 21st 05 03:30 AM |
VIDEO: Helicopter crash | Micbloo | Rotorcraft | 0 | November 3rd 04 03:28 AM |
Video of crash 206 | gaylon9 | Rotorcraft | 9 | December 2nd 03 04:53 PM |