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![]() "Bruce Greeff" wrote in message ... Depends where you are. There are winches at every club I have ever visited in South Africa. At my club we gave up on Aerotow 8 years ago. It is expensive. It is slow. It is more dangerous in some ways. We have predictable enough thermals that we have very low 'relight' incidence. That said, you need aerotow when you have long wings, or are carrying water or need the height or physical displacement to be able to contact lift. The nose hooks on our gliders are pristine, make us an offer... I agree. Bill Daniels |
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Although the ASW-24 is a delightful glider to fly and behaves very
well in almost all situations, I would not recommend it for recently licensed pilots, mostly because it requires a fair amount of precision on landing. The airspeed must be tightly controlled and the circuit planned and executed exactly for short field landings. While the dive brakes are reasonably good but improper airspeed control reduces their effectiveness. It does slip quite well but, again, this is a maneouvre that many new pilots will find difficult in a glider like this. I would recommend other gliders for newly licensed pilots, such as, for example, the LS-4. Ulli Werneburg ASW-24 #24078 'MZ' (Harry) wrote in message m... would you recommend this ship for a recently licensed pilot ??? comments welcome! regards Harry |
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#4
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FWIW,
My experience airotowing using a belly hook has been limited to my PIK 20B, fitted with Mazak winglets, using the Aussie low-tow technique. Take-off procedure is stock standard: 1. Select full negative flap (-8 deg) 2. Select full forward trim 3. Hold the ship on the ground with back stick until full aileron control established. 4. Ease stick forward and ease flaps to neutral. Ship lifts off with no further elevator input. 5. Hold ship at 5-10 feet until tug lifts off and rises above glider. 6. Glider follows just under tug slip-stream. ( If there is a cross wind hold the ship on ground longer until just before tug lifts off). The above gives excellent directional control on the ground with no tendency to drop a wing or drift off-line. Ropes are standard 55 metres length. In the air (low tow position) directional stability is excellent but one needs to read changes to the tug's angle of bank quickly. Only had one (short-term) scare when, in my first competition, the tug went into a 45 degree RH bank into a thermal at 600'. Took a few milliseconds to regain my equilibrium!! Only had one other experience of concern when an experienced tuggie persuaded me to undertake an outlanding retrieve (from a remote airfield) using a 35 meter rope - an experience I didn't enjoy and wouldn't recommend. Overall, aerotowing with the belly hook hasn't presented any difficulties worth worrying about and well-intentioned (doom and gloom) predictions by instructors and winch drivers fortunately have proved groundless. Geoff Vincent Mangalore Gliding Club Australia VH-GAX On 23 Jul 2003 05:32:18 -0700, (Hank Nixon) wrote: (Harry) wrote in message m... would you recommend this ship for a recently licensed pilot ??? comments welcome! regards Harry Reply: This depends on the experienceyou have at this time and how your training was done. The '24 is a very honest glider with excellent stabilty. Early versions without winglets do exhibit some wing tip drop at stall if not well coordinated. That said, there is reliable warning. This is helped a lot by the factory added winglets and even more by aftermarket winglets in use in some countries. Speed control is important in landing but not remarkably so. The '24 was the first of the new generation of gliders with enhanced safety as an important part of the design. Many manufacturers are just now starting to catch up. These include progressive failure in the cockpit area, Upper safety beam in the cockpit, seat pan design, powerful hydraulic brake, landing gear designed to fail progresively absorbing energy, and other detail features. Towing is honest with CG hook. Most in Europe will have the forward nose hook installed. If flying with 30M ropes, I would suggest nose hook for added safety. If you were trained in modern glass, get some spin training and a few hours in LS4 or similar and go for it. I owned a '24 for 13 years and really enjoyed it. Good luck UH |
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On Thu, 24 Jul 2003 17:05:30 +1000, Geoff Vincent
wrote: FWIW, My experience airotowing using a belly hook has been limited to my PIK 20B, fitted with Mazak winglets, using the Aussie low-tow technique. Take-off procedure is stock standard: 1. Select full negative flap (-8 deg) 2. Select full forward trim 3. Hold the ship on the ground with back stick until full aileron control established. 4. Ease stick forward and ease flaps to neutral. Ship lifts off with no further elevator input. 5. Hold ship at 5-10 feet until tug lifts off and rises above glider. 6. Glider follows just under tug slip-stream. ( If there is a cross wind hold the ship on ground longer until just before tug lifts off). The above gives excellent directional control on the ground with no tendency to drop a wing or drift off-line. Ropes are standard 55 metres length. In the air (low tow position) directional stability is excellent but one needs to read changes to the tug's angle of bank quickly. Only had one (short-term) scare when, in my first competition, the tug went into a 45 degree RH bank into a thermal at 600'. Took a few milliseconds to regain my equilibrium!! Only had one other experience of concern when an experienced tuggie persuaded me to undertake an outlanding retrieve (from a remote airfield) using a 35 meter rope - an experience I didn't enjoy and wouldn't recommend. Overall, aerotowing with the belly hook hasn't presented any difficulties worth worrying about and well-intentioned (doom and gloom) predictions by instructors and winch drivers fortunately have proved groundless. Geoff Vincent Mangalore Gliding Club Australia VH-GAX Right on Geoff, I hate short ropes. Most of the problems with belly hooks and aerotow go away if you use a decent length of rope. 55 meters is a little too short though. About 240 feet is about right. One of the nearby clubs started doing this and after some time, one day one of the old shorter ropes came out and was used. After a couple of tows the tugpilot went back to the hangar to get the long rope. He could tell how much easier the glider pilots found the long rope. Mike Borgelt |
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I have experience of two different kinds aerotowing from a CG hook:
1. Launching an LS4 (tailskid) from an unmade (dirt, gravel, rocks) runway. The problem here was directional control, with the glider snaking around until there was enough speed for the rudder to counter the crosswind. Not a real problem but hard work for 2 or 3 seconds. Hand on release in case the direction of tug and glider get too far apart. 2. Launching my Open Cirrus (tailwheel) from a paved runway. Absolutely no directional control problems at all. By the time the tailwheel is lifting, the rudder is working. Just be aware of the possibility of swinging once the tail comes up - whether there's any swing will probably vary between glider types, but I've never noticed anything with the Cirrus. There is, for all CG hook aerotows, the danger that if the glider gets high it will begin to winch launch itself. I'm told this will pull the tug tail up and cause more excitement than anyone wants (or worse than excitement if low down). Neither the LS4 nor the Cirrus showed any signs of doing so, but I kept a watch on the tug position ready to release if it got away from me. |
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On Thu, 24 Jul 2003 13:02:00 +0100, "Chris Reed"
wrote: I have experience of two different kinds aerotowing from a CG hook: 1. Launching an LS4 (tailskid) from an unmade (dirt, gravel, rocks) runway. The problem here was directional control, with the glider snaking around until there was enough speed for the rudder to counter the crosswind. Not a real problem but hard work for 2 or 3 seconds. Hand on release in case the direction of tug and glider get too far apart. 2. Launching my Open Cirrus (tailwheel) from a paved runway. Absolutely no directional control problems at all. By the time the tailwheel is lifting, the rudder is working. Just be aware of the possibility of swinging once the tail comes up - whether there's any swing will probably vary between glider types, but I've never noticed anything with the Cirrus. There is, for all CG hook aerotows, the danger that if the glider gets high it will begin to winch launch itself. I'm told this will pull the tug tail up and cause more excitement than anyone wants (or worse than excitement if low down). Neither the LS4 nor the Cirrus showed any signs of doing so, but I kept a watch on the tug position ready to release if it got away from me. Sounds like excellent justification to fly low tow. Geoff Vincent Australia |
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Geoff Vincent wrote in message . ..
On Thu, 24 Jul 2003 13:02:00 +0100, "Chris Reed" wrote: I have experience of two different kinds aerotowing from a CG hook: 1. Launching an LS4 (tailskid) from an unmade (dirt, gravel, rocks) runway. The problem here was directional control, with the glider snaking around until there was enough speed for the rudder to counter the crosswind. Not a real problem but hard work for 2 or 3 seconds. Hand on release in case the direction of tug and glider get too far apart. 2. Launching my Open Cirrus (tailwheel) from a paved runway. Absolutely no directional control problems at all. By the time the tailwheel is lifting, the rudder is working. Just be aware of the possibility of swinging once the tail comes up - whether there's any swing will probably vary between glider types, but I've never noticed anything with the Cirrus. There is, for all CG hook aerotows, the danger that if the glider gets high it will begin to winch launch itself. I'm told this will pull the tug tail up and cause more excitement than anyone wants (or worse than excitement if low down). Neither the LS4 nor the Cirrus showed any signs of doing so, but I kept a watch on the tug position ready to release if it got away from me. Sounds like excellent justification to fly low tow. Geoff Vincent Australia Geoff Completely agree. Low tow easier to fly, easier to teach,never have broken a rope in over 30,000 tows at our operation, and--------- NOBODY EVER DOVE A TOWPILOT INTO THE GROUND IN LOW TOW! 9500 low tows and counting UH |
#9
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"Chris Reed" wrote
I have experience of two different kinds aerotowing from a CG hook: 1. Launching an LS4 (tailskid) from an unmade (dirt, gravel, rocks) runway. The problem here was directional control, with the glider snaking around until there was enough speed for the rudder to counter the crosswind. Not a real problem but hard work for 2 or 3 seconds. Hand on release in case the direction of tug and glider get too far apart. My experience with a cg-hook HP-11T (fixed tailwheel, no swiveling or steering)mirrors yours, but with the added problem of a wing wanting to drop and requiring prompt rudder input. I've launched from rough grass and pavement. Had to release once for the resons you state. Once in the air, no big deal. Michael |
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Tom..
Why would you choose to transfer from normal to low tow...just say below propwash from the start...always done it ..always taught it..NEVER had a problem..why endanger your mate in the tow plane? At 07:54 25 July 2003, Tom Serkowski wrote: The key issue here is that 90% of the danger to the towpilot from a ballooning sailplane occurs before one has enough altitude to get into low tow. Granted, there may be a 'mindset' of the glider pilot to stay low, so there may be a little less incentive to get high on the tow while both are still less than 50' AGL or so. Tom Sleigh wrote in message news:... At 13:54 24 July 2003, Geoff Vincent wrote: On Thu, 24 Jul 2003 13:02:00 +0100, 'Chris Reed' Sounds like excellent justification to fly low tow. Geoff Vincent Australia Geoff You know that suggestion is, far too sensible and practical ,for this group Low tow fan..England |
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