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#11
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BTIZ wrote:
well... I've not seen an altimeter in US aircraft that can dial out 5000ft of altitude.. that would mean the altimeter would have to be adjustable from 29.92 to 24.92, and mine only goes to 28.10 It may be a regional problem. In certain European contries, QFE setting is common for approach. So the altimeters sold here are designed for this. BTW, when doing acro, the scale range isn't a problem. Just turn the knob before takeoff until the meter shows zero. No need to have a calibrated kolman scale for this. Stefan |
#12
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Welcome back Dudley.
Do the Leader and Solo T-birds use 'crib' sheets showing the maneuvers with entry airspeed and altitude normalized for field where they are performing? If not, that might be a 'cheap' and easy safety procedure. See where next years team was formalized and have started working together. And a nice day to thee. BJ Pilot ROCAF On Mon, 08 Mar 2004 17:37:29 GMT, "Dudley Henriques" wrote: "David Brooks" wrote in message ... "BTIZ" wrote in message news:srO2c.16250$id3.4338@fed1read01... ok.. I may be backwards... I don't normally define the use of Q settings.. The bottom line is, the discussion was brought up with the AF T-Bird doing acro and not computing the altitude needed at the top of a maneuver to safely pull out above ground level. Some argue to set the altimeter to zero elevation before takeoff. It just can't be done in many places out west. IIRC, this discussion earlier revealed that the T-bird pilots have super-wizzo-thingummy altimeters that can indeed set QFE at high elevations. Granted, yours and mine can't. -- David Brooks Hi David; The Thunderbirds use a standard altimeter setting for the point of demonstration and do not use a 0 altimeter set. Their maneuver profiles are corrected to MSL altitudes. Stricklin unfortunately on the way up the front side of his maneuver mentally "corrected" his reverse top target gate to Nellis' elevation instead of where he was. This put the Viper way low of where it should have been at the top side commit. He missed his visual cues as well. The airplane simply didn't have the g available vs the altitude under it to cut the corner. Dudley |
#13
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Hi BJ;
Hope all is well with you these days. Yes; you are correct about that John. I haven't talked with the new guys, as my association with the team involves us "older" folks :-)) but the procedure in both the official TB regulations for the team and the preflight brief as far as I know haven't been changed through the years from using the field elevation at the show sites as a MSL reference for both the Diamond and solo maneuver target altitudes. The trick is remembering the targets! What happens is very subtle and could bite anyone as it bit Stricklin. When you practice day after day at the same location as the team does at Indian Springs near Nellis, your subconscious can store this repetitious data as a constant. Then you go to another location and fly a demonstration there. You go through a normal brief and note the target properly as being different naturally, because of the difference in field elevations between the two points. Then you enter the front side of the maneuver knowing full well the briefed top target and then something happens....a slight distraction.....doesn't have to be much.....something breaks that intense concentration you have going up....then suddenly the distraction's vanished and you snap back immediately. Your eye catches the altimeter at exactly the altitude your subconscious has stored and you react instinctively and initiate the reverse. Nothing else is out of place and you haven't picked it up yet as even a possible error. The result of this is that you miss the visual cues as well that should be telling you you're a full thousand feet lower in the reverse than you should be. Your airspeed is in the energy gate parameters so absolutely nothing is caught that should be screaming at you to exit out in roll and call a maneuver miss. Once you commit past the inverted gate, you're dead already. This is exactly what happed to Strickin. He had a brain fart on the frontside and missed every cue that he should have caught. The team is looking hard at the broken concentration issue. but I doubt if the procedure for using field elevation for maneuver targets will change. The final result will probably be a "head's up" official report stressing the need for unbroken concentration at all times by all team members. Also, in all preflight briefs, it's common practice to have each team member answer a safety question given by the boss. I'm fairly certain that just before the usual compulsory in cadence hand slapping on the desktops begins, this "head's up" on concentration will be a required reminder by the boss to each position. I'm looking for this is ALL teams as well...throughout the world, as with something like this....EVERYBODY learns!! Dudley "Big John" wrote in message ... Welcome back Dudley. Do the Leader and Solo T-birds use 'crib' sheets showing the maneuvers with entry airspeed and altitude normalized for field where they are performing? If not, that might be a 'cheap' and easy safety procedure. See where next years team was formalized and have started working together. And a nice day to thee. BJ Pilot ROCAF On Mon, 08 Mar 2004 17:37:29 GMT, "Dudley Henriques" wrote: "David Brooks" wrote in message ... "BTIZ" wrote in message news:srO2c.16250$id3.4338@fed1read01... ok.. I may be backwards... I don't normally define the use of Q settings.. The bottom line is, the discussion was brought up with the AF T-Bird doing acro and not computing the altitude needed at the top of a maneuver to safely pull out above ground level. Some argue to set the altimeter to zero elevation before takeoff. It just can't be done in many places out west. IIRC, this discussion earlier revealed that the T-bird pilots have super-wizzo-thingummy altimeters that can indeed set QFE at high elevations. Granted, yours and mine can't. -- David Brooks Hi David; The Thunderbirds use a standard altimeter setting for the point of demonstration and do not use a 0 altimeter set. Their maneuver profiles are corrected to MSL altitudes. Stricklin unfortunately on the way up the front side of his maneuver mentally "corrected" his reverse top target gate to Nellis' elevation instead of where he was. This put the Viper way low of where it should have been at the top side commit. He missed his visual cues as well. The airplane simply didn't have the g available vs the altitude under it to cut the corner. Dudley |
#14
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"Dudley Henriques" wrote in message link.net...
Then, when the airplane makes it out into the general fighter community, we get a hold of it and rename it to suit ourselves. That's the name that sticks. Hence the "Viper" tag! Thanks for the explanation. I was familiar with the renaming process (i.e. Warthogs and Bones), but hadn't ever heard the "Viper" tag. Thanks, John Galban=====N4BQ (PA28-180) |
#15
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Dudley
Understand. I on several occasions was sent around for some reason or another and after cleaning up bird was cleared for a closed pattern, close base and short final. My normal landing used the standard GUMP check and several transmissions of "Gear down and locked", the last turning final and with the change in procedure I almost landed wheels up a couple of times over the years because my concentration was broken.. Only didn't because of my 'double rubber' approach to things when I was flying on the edge with hard adherence to check lists. If your up in the air you can get away with a lot but low there is maybe only one shot so it better be a good one (or be lucky).. The TB accident has been covered pretty well so we should leave it and let it RIP. As you stated, those in the business will learn from what happened, but it was an expensive dollar wise teacher. New subject. Did you spin the '51 when you were flying it? May luck be with you. Big John On Tue, 09 Mar 2004 19:19:33 GMT, "Dudley Henriques" wrote: Hi BJ; Hope all is well with you these days. Yes; you are correct about that John. I haven't talked with the new guys, as my association with the team involves us "older" folks :-)) but the procedure in both the official TB regulations for the team and the preflight brief as far as I know haven't been changed through the years from using the field elevation at the show sites as a MSL reference for both the Diamond and solo maneuver target altitudes. The trick is remembering the targets! What happens is very subtle and could bite anyone as it bit Stricklin. When you practice day after day at the same location as the team does at Indian Springs near Nellis, your subconscious can store this repetitious data as a constant. Then you go to another location and fly a demonstration there. You go through a normal brief and note the target properly as being different naturally, because of the difference in field elevations between the two points. Then you enter the front side of the maneuver knowing full well the briefed top target and then something happens....a slight distraction.....doesn't have to be much.....something breaks that intense concentration you have going up....then suddenly the distraction's vanished and you snap back immediately. Your eye catches the altimeter at exactly the altitude your subconscious has stored and you react instinctively and initiate the reverse. Nothing else is out of place and you haven't picked it up yet as even a possible error. The result of this is that you miss the visual cues as well that should be telling you you're a full thousand feet lower in the reverse than you should be. Your airspeed is in the energy gate parameters so absolutely nothing is caught that should be screaming at you to exit out in roll and call a maneuver miss. Once you commit past the inverted gate, you're dead already. This is exactly what happed to Strickin. He had a brain fart on the frontside and missed every cue that he should have caught. The team is looking hard at the broken concentration issue. but I doubt if the procedure for using field elevation for maneuver targets will change. The final result will probably be a "head's up" official report stressing the need for unbroken concentration at all times by all team members. Also, in all preflight briefs, it's common practice to have each team member answer a safety question given by the boss. I'm fairly certain that just before the usual compulsory in cadence hand slapping on the desktops begins, this "head's up" on concentration will be a required reminder by the boss to each position. I'm looking for this is ALL teams as well...throughout the world, as with something like this....EVERYBODY learns!! Dudley ----clip---- |
#16
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New subject. Did you spin the '51 when you were flying it?
Yes, very reliable recovery in the civilian configured airframes. VL |
#17
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"Big John" wrote in message ... Dudley Understand. I on several occasions was sent around for some reason or another and after cleaning up bird was cleared for a closed pattern, close base and short final. My normal landing used the standard GUMP check and several transmissions of "Gear down and locked", the last turning final and with the change in procedure I almost landed wheels up a couple of times over the years because my concentration was broken.. Only didn't because of my 'double rubber' approach to things when I was flying on the edge with hard adherence to check lists. If your up in the air you can get away with a lot but low there is maybe only one shot so it better be a good one (or be lucky).. The TB accident has been covered pretty well so we should leave it and let it RIP. As you stated, those in the business will learn from what happened, but it was an expensive dollar wise teacher. New subject. Did you spin the '51 when you were flying it? I've spun it power off, but never with power on. Dudley |
#18
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"MLenoch" wrote in message ... New subject. Did you spin the '51 when you were flying it? Yes, very reliable recovery in the civilian configured airframes. VL Vlado; if you ever get a free minute and have the data handy, can you whiz me a list of the exact changes made from the straight military config ? I had the data and lost it. Thanks Dudley |
#19
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Dud:
Items deleted: Guns, ammo feed belts, ammo tray, cockpit armor, old radio, battery relocated to engine bay, rear fuel tank removed, canopy arch-brace, gunsight sometimes, rear seat added, bomb racks sometimes. One can estimate the weight reduction from the various items above. Not all civilian Mustangs are exactly alike. Every owner has their favorite flavor/configuration. The full up restorations handle differently than the 'stripped' civilian combinations. Hope this helps, VL |
#20
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Was there a cutoff point in all these reductions where the cg changed to the
point where it affected the landing characteristics? I can't remember where the Cavs came in with GW with all this trimming down going on . The cg had to move around some and affect the trim on landing. For example, on your bird, I take it you're light; are you critical on landing for trim use perhaps, and if so, are you ok through the entire fuel range in the mains? Dud "MLenoch" wrote in message ... Dud: Items deleted: Guns, ammo feed belts, ammo tray, cockpit armor, old radio, battery relocated to engine bay, rear fuel tank removed, canopy arch-brace, gunsight sometimes, rear seat added, bomb racks sometimes. One can estimate the weight reduction from the various items above. Not all civilian Mustangs are exactly alike. Every owner has their favorite flavor/configuration. The full up restorations handle differently than the 'stripped' civilian combinations. Hope this helps, VL |
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