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#1
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![]() A long time ago I visited a soaring site in Israel. The signal the glider pilots used to signal readiness to the tow pilot was not waving the rudder like in the USA, but opening and closing the spoilers/breaks twice. I was told one of the reasons for this was to make sure they were closed on TO. -- Roberto Waltman This above post by Mr Waltman makes alot of sense to me and I would like to see this procedure looked at closely. I am also a big fan of launching with the spoilers open and have been doing it now for several years with good results. Another thing I have trained myself to do is; When the towplane / glider unit gets airborne and is in a steady state of climb, I glance out to the left wing and look at the spoilers. It is easy to do and your focus distance does not change much. Another big issue for me is what really caused this accident, it sounds like the rope or weak link broke. I don't think the rope should come apart on a guy just because he has his spoilers out and the tow is slowly progressing. I've taken off in Parowan in my ASW-20 full of water with the spoilers unlocked. I didn't think much of it untill the tow pilot called and remarked about all the sink we were flying through! We all make mistakes. If the tug cannot climb and has to turn the glider loose, so be it. if the tow starts going squirrily and the tow pilot is getting scared, turn the glider loose. But it should be a decision made by the pilots, not a P.O.S. rope break. Further more I think we need to all be using High Quality ropes and weak links, and give up on that polypro. The poly pro comes unthreaded,untied, it is EASILY damaged, it looks like hell after only a few tows. Look on the Wings and Wheels web page and look at the rope TOST puts out and the Dacron Rope. Here in Telluride we ONLY use Dacron ropes because they are reliable. If you have a rope break here, early on the tow, it is really bad news. Heck it's bad news anywhere to have a rope break low. It can be FATAL . lets get rid of those poly ropes. And in the long run the Hi Quality ropes ARE cheaper, and when they are used up, you can use them for other things, not just throw them away. How green is that? Nick Kennedy Grob Twin Astir TF LS-6 XS |
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At 03:59 15 April 2011, Nick Kennedy wrote:
I am also a big fan of launchin with the spoilers open and have been doing it now for several years wit good results. Nick Kennedy Grob Twin Astir TF LS-6 XS Consider the two scenarios. 1) You start the launch with the brakes locked, your hand on the release. You drop a wing pull off, start again. 2) You start the launch with you hand on the open airbrakes, not on the release. You drop a wing, can't pull off, groundloop, smash your glider to bits. Which one makes you feel more of an idiot? What does it say in your flight manual bout launching? Have you actually bothered to read that bit of the manual? PF |
#3
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On Apr 15, 3:33*am, Peter F wrote:
At 03:59 15 April 2011, Nick Kennedy wrote: I am also a big fan of launchin with the spoilers open and have been doing it now for several years wit good results. Nick Kennedy Grob Twin Astir TF LS-6 *XS Consider the two scenarios. 1) You start the launch with the brakes locked, your hand on the release. You drop a wing pull off, start again. 2) You start the launch with you hand on the open airbrakes, not on the release. You drop a wing, can't pull off, groundloop, smash your glider to bits. Which one makes you feel more of an idiot? What does it say in your flight manual bout launching? Have you actually bothered to read that bit of the manual? PF Maybe you can't let go of the spoiler handle and release, but I can. Do you actually tow with your hand on the release? What happens at 100 feet when you hit a good bump and accidentally release? |
#4
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On Apr 16, 2:03*am, Dan Marotta wrote:
Maybe you can't let go of the spoiler handle and release, but I can. Do you actually tow with your hand on the release? *What happens at 100 feet when you hit a good bump and accidentally release? Er ... you land safely? Why would the answer be any different than what happens if the rope breaks or the towplane engine quits? |
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On Fri, 15 Apr 2011 07:03:46 -0700, Dan Marotta wrote:
Do you actually tow with your hand on the release? Yes - for both aero-tow and winch and for the same reasons in both cases: if the tip hits the ground, RELEASE. Good practise on any grass field and standard doctrine on my club's field. What happens at 100 feet when you hit a good bump and accidentally release? Hand ON the release doesn't mean "Fingers wrapped round the knob and release cable pre-tensioned". If your fingers are straight and resting against the knob a bump can't cause an accidental release, but curling fingers round the knob and pulling is still instant. -- martin@ | Martin Gregorie gregorie. | Essex, UK org | |
#6
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On Apr 15, 5:33*am, Peter F wrote:
At 03:59 15 April 2011, Nick Kennedy wrote: I am also a big fan of launchin with the spoilers open and have been doing it now for several years wit good results. Nick Kennedy Grob Twin Astir TF LS-6 *XS Consider the two scenarios. 1) You start the launch with the brakes locked, your hand on the release. You drop a wing pull off, start again. 2) You start the launch with you hand on the open airbrakes, not on the release. You drop a wing, can't pull off, groundloop, smash your glider to bits. Which one makes you feel more of an idiot? What does it say in your flight manual bout launching? Have you actually bothered to read that bit of the manual? PF Or, you read the flight manual which says "Additional aileron effectiveness during initial takeoff roll may be achieved by extending airbrakes, retract airbrakes before leaving ground" [LS4 flight manual p 4-8]. So in that case, should you feel like an idiot because you dropped the wing for NOT following this advice? There's no need to get snarky about this. It's a tough problem that deserves reasoned discussion. And, unfortunately, there's probably not one single approach that works. Different aircraft have different traps, and the preflight routine needs to be adapted accordingly. For example, I teach somewhat different routines with students in the 2-33 vs. the Grob 103 based on the peculiarities of each and the checklists we've established. Ultimately, the preflight checklist for each aircraft needs to be followed carefull. It's that discipline of following checklists and anticipating the 2-3 critical problems that happen early in the tow that needs to be drilled home. My 0.02. P3 |
#7
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On Apr 15, 11:04*am, Papa3 wrote:
On Apr 15, 5:33*am, Peter F wrote: At 03:59 15 April 2011, Nick Kennedy wrote: I am also a big fan of launchin with the spoilers open and have been doing it now for several years wit good results. Nick Kennedy Grob Twin Astir TF LS-6 *XS Consider the two scenarios. 1) You start the launch with the brakes locked, your hand on the release. You drop a wing pull off, start again. 2) You start the launch with you hand on the open airbrakes, not on the release. You drop a wing, can't pull off, groundloop, smash your glider to bits. Which one makes you feel more of an idiot? What does it say in your flight manual bout launching? Have you actually bothered to read that bit of the manual? PF Or, you read the flight manual which says "Additional aileron effectiveness during initial takeoff roll may be achieved by extending airbrakes, retract airbrakes before leaving ground" [LS4 flight manual p 4-8]. * *So in that case, *should you feel like an idiot because you dropped the wing for NOT following this advice? There's no need to get snarky about this. It's a tough problem that deserves reasoned discussion. * And, unfortunately, there's probably not one single approach that works. * Different aircraft have different traps, and the preflight routine needs to be adapted accordingly. *For example, I teach somewhat different routines with students in the 2-33 vs. the Grob 103 based on the peculiarities of each and the checklists we've established. * * Ultimately, the preflight checklist for each aircraft needs to be followed carefull. It's that discipline of following checklists and anticipating the 2-3 critical problems that happen early in the tow that needs to be drilled home. My 0.02. P3 Day is coming,when BRSA will notice that: observers (ground crew) who watched this Blanik in trouble with open spoilers, all they needed to save his life was hand held radio. Still too expensive toy,almost like parachutes in club ships. RW |
#8
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On Apr 15, 9:04*pm, RW wrote:
On Apr 15, 11:04*am, Papa3 wrote: On Apr 15, 5:33*am, Peter F wrote: At 03:59 15 April 2011, Nick Kennedy wrote: I am also a big fan of launchin with the spoilers open and have been doing it now for several years wit good results. Nick Kennedy Grob Twin Astir TF LS-6 *XS Consider the two scenarios. 1) You start the launch with the brakes locked, your hand on the release. You drop a wing pull off, start again. 2) You start the launch with you hand on the open airbrakes, not on the release. You drop a wing, can't pull off, groundloop, smash your glider to bits. Which one makes you feel more of an idiot? What does it say in your flight manual bout launching? Have you actually bothered to read that bit of the manual? PF Or, you read the flight manual which says "Additional aileron effectiveness during initial takeoff roll may be achieved by extending airbrakes, retract airbrakes before leaving ground" [LS4 flight manual p 4-8]. * *So in that case, *should you feel like an idiot because you dropped the wing for NOT following this advice? There's no need to get snarky about this. It's a tough problem that deserves reasoned discussion. * And, unfortunately, there's probably not one single approach that works. * Different aircraft have different traps, and the preflight routine needs to be adapted accordingly. *For example, I teach somewhat different routines with students in the 2-33 vs. the Grob 103 based on the peculiarities of each and the checklists we've established. * * Ultimately, the preflight checklist for each aircraft needs to be followed carefull. It's that discipline of following checklists and anticipating the 2-3 critical problems that happen early in the tow that needs to be drilled home. My 0.02. P3 Day is coming,when BRSA will notice that: *observers (ground crew) who watched this Blanik in trouble with open spoilers, all they needed to save his life was hand held radio. Still too expensive toy,almost like parachutes in club ships. RW The radio might not help you. A group of us at a local contest watched as the airbrakes opened on a ship as it became airborne and stayed that way for about a minute or more. The tuggie was struggling to climb and came perilously close to hitting some large cactus. I was the first to call on the radio, followed by a chorus of others. All our calls went unanswered and produced no effect on the glider. After the flight, I asked the pilot why he didn't respond to our calls. The answer "I turn the radio down during launch to avoid distraction". I always keep my radio on the airport frequency until climbing out. Perhaps the culprit of whom I speak would like to defend his position - he knows who he is! Mike Mike |
#9
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On Apr 16, 10:23*am, Mike the Strike wrote:
On Apr 15, 9:04*pm, RW wrote: On Apr 15, 11:04*am, Papa3 wrote: On Apr 15, 5:33*am, Peter F wrote: At 03:59 15 April 2011, Nick Kennedy wrote: I am also a big fan of launchin with the spoilers open and have been doing it now for several years wit good results. Nick Kennedy Grob Twin Astir TF LS-6 *XS Consider the two scenarios. 1) You start the launch with the brakes locked, your hand on the release. You drop a wing pull off, start again. 2) You start the launch with you hand on the open airbrakes, not on the release. You drop a wing, can't pull off, groundloop, smash your glider to bits. Which one makes you feel more of an idiot? What does it say in your flight manual bout launching? Have you actually bothered to read that bit of the manual? PF Or, you read the flight manual which says "Additional aileron effectiveness during initial takeoff roll may be achieved by extending airbrakes, retract airbrakes before leaving ground" [LS4 flight manual p 4-8]. * *So in that case, *should you feel like an idiot because you dropped the wing for NOT following this advice? There's no need to get snarky about this. It's a tough problem that deserves reasoned discussion. * And, unfortunately, there's probably not one single approach that works. * Different aircraft have different traps, and the preflight routine needs to be adapted accordingly. *For example, I teach somewhat different routines with students in the 2-33 vs. the Grob 103 based on the peculiarities of each and the checklists we've established. * * Ultimately, the preflight checklist for each aircraft needs to be followed carefull. It's that discipline of following checklists and anticipating the 2-3 critical problems that happen early in the tow that needs to be drilled home. My 0.02. P3 Day is coming,when BRSA will notice that: *observers (ground crew) who watched this Blanik in trouble with open spoilers, all they needed to save his life was hand held radio. Still too expensive toy,almost like parachutes in club ships. RW The radio might not help you. *A group of us at a local contest watched as the airbrakes opened on a ship as it became airborne and stayed that way for about a minute or more. *The tuggie was struggling to climb and came perilously close to hitting some large cactus. *I was the first to call on the radio, followed by a chorus of others. All our calls went unanswered and produced no effect on the glider. After the flight, I asked the pilot why he didn't respond to our calls. *The answer "I turn the radio down during launch to avoid distraction". I always keep my radio on the airport frequency until climbing out. Perhaps the culprit of whom I speak would like to defend his position - he knows who he is! Mike Mike Maybe you can't let go of the spoiler handle and release, but I can. Do you actually tow with your hand on the release? What happens at 100 feet when you hit a good bump and accidentally release? Er ... you land safely? It's great for you that you fly at a field where a release at 100 feet is a non-event. Some of the places I've flown would not be so kind. Where I currently fly, a release at 100 feet would mean landing straight ahead on pavement - truly a non-event, however, this is not so everywhere we fly. It's clear to me (and always has been) that each and every one of us knows what's best for the rest of us. ;-P |
#10
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At 09:33 15 April 2011, Peter F wrote:
At 03:59 15 April 2011, Nick Kennedy wrote: I am also a big fan of launchin with the spoilers open and have been doing it now for several years wit good results. Nick Kennedy Grob Twin Astir TF LS-6 XS Consider the two scenarios. 1) You start the launch with the brakes locked, your hand on the release. You drop a wing pull off, start again. 2) You start the launch with you hand on the open airbrakes, not on the release. You drop a wing, can't pull off, groundloop, smash your glider to bits. Which one makes you feel more of an idiot? What does it say in your flight manual bout launching? Have you actually bothered to read that bit of the manual? PF I think we should possibly make a distinction between types of launch. I normally winch launch, done many thousands of 'em, and there is only one place my left hand is, and that is holding the release. The accident happens too quickly to be able to grab for it, and it has never resulted in an inadvertant release. When the accident happens it is always a badly damaged glider, often injuries, sometimes worse. There may be a little more time on aerotow, but personally I still hold the release, letting go to move flaps if fitted, when I'm happy with lateral control. Dave |
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