One down in the Riverland
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One down in the Riverland
"A pilot has escaped serious injury after his light plane clipped power lines and crashed in the South Australian Riverland.
The pilot was the only person on board and suffered only a minor cut to the face, police say.
The plane was being used on Monday to scare birds away from an almond orchard at Loxton."
From the video I saw looks to be a blue PA-28 with a yellow stripe bordered by a darker blue down the side.
DF.
The pilot was the only person on board and suffered only a minor cut to the face, police say.
The plane was being used on Monday to scare birds away from an almond orchard at Loxton."
From the video I saw looks to be a blue PA-28 with a yellow stripe bordered by a darker blue down the side.
DF.
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Must have been a pretty slow-speed crash-landing, and with the power line having little effect on the aircraft structure or handling, as he landed it pretty neatly.
South Australia - light-plane crash lands at Loxton in South Australia's riverland
South Australia - light-plane crash lands at Loxton in South Australia's riverland
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Must have been a pretty slow-speed crash-landing, and with the power line having little effect on the aircraft structure or handling, as he landed it pretty neatly.
South Australia - light-plane crash lands at Loxton in South Australia's riverland
South Australia - light-plane crash lands at Loxton in South Australia's riverland
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You haven't seen anything that attracts birds, like an almond orchard! The parrot species in particular, will literally try everything to get to them - and birds are a lot more clever than many people think. I'd place many birds as smarter than the smartest dog.
Shooting doesn't work, the birds merely watch out for firearms and human shapes, and shot birds are simply replaced by other birds from further away who haven't realised there are shooters associated with the food trees.
Constant harassment of the birds is the best form of defence, they give up after regular harassment, and go elsewhere to find their food.
The harrassment can take multiple forms, and a variety of harassment forms keeps them on edge.
Shooting doesn't work, the birds merely watch out for firearms and human shapes, and shot birds are simply replaced by other birds from further away who haven't realised there are shooters associated with the food trees.
Constant harassment of the birds is the best form of defence, they give up after regular harassment, and go elsewhere to find their food.
The harrassment can take multiple forms, and a variety of harassment forms keeps them on edge.
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Back in 1991, I flew around 175 hrs in Bird Scaring/chasing operations at the Lindsay point Almond Orchards, just over the Victorian/SA border east of Renmark.
Thoroughly enjoyed it, even though it entailed making the first sortie of the day just after first light and the last just before last light!
With various sorties staged at irregular intervals throughout the day.
Em Nau!
Never flew less than 5 hours each day and finally achieved what I called 'Air Superiority' over the Feathered sods of a non reflective colour!
ie as soon as they heard me take off, they decamped from the area!
So sometimes I'd just do one circuit of the area and land. Other times I'd do a full hour or so of just cruising up and down the orchard but never did the same thing twice in a row.
If offered the job again....I'd grab it in a flash!!
DD; You copy?
Thoroughly enjoyed it, even though it entailed making the first sortie of the day just after first light and the last just before last light!
With various sorties staged at irregular intervals throughout the day.
Constant harassment of the birds is the best form of defence,
Never flew less than 5 hours each day and finally achieved what I called 'Air Superiority' over the Feathered sods of a non reflective colour!
ie as soon as they heard me take off, they decamped from the area! So sometimes I'd just do one circuit of the area and land. Other times I'd do a full hour or so of just cruising up and down the orchard but never did the same thing twice in a row.If offered the job again....I'd grab it in a flash!!
DD; You copy?
Back in 1991, I flew around 175 hrs in Bird Scaring/chasing operations at the Lindsay point Almond Orchards, just over the Victorian/SA border east of Renmark.
Thoroughly enjoyed it, even though it entailed making the first sortie of the day just after first light and the last just before last light!
With various sorties staged at irregular intervals throughout the day.
Em Nau!
Never flew less than 5 hours each day and finally achieved what I called 'Air Superiority' over the Feathered sods of a non reflective colour! ie as soon as they heard me take off, they decamped from the area! So sometimes I'd just do one circuit of the area and land. Other times I'd do a full hour or so of just cruising up and down the orchard but never did the same thing twice in a row.
If offered the job again....I'd grab it in a flash!!
DD; You copy?
Thoroughly enjoyed it, even though it entailed making the first sortie of the day just after first light and the last just before last light!
With various sorties staged at irregular intervals throughout the day.
Em Nau!
Never flew less than 5 hours each day and finally achieved what I called 'Air Superiority' over the Feathered sods of a non reflective colour!
ie as soon as they heard me take off, they decamped from the area! So sometimes I'd just do one circuit of the area and land. Other times I'd do a full hour or so of just cruising up and down the orchard but never did the same thing twice in a row.If offered the job again....I'd grab it in a flash!!
DD; You copy?
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Good news the pilot survived the wire strike.
Aerial bird control has been going on for some time in fact it pre-dates the era of over the top PC and OH&S way back to a time when inventiveness was applauded......circa late 80's early nineties.
What apparently seems to work rather well in this arena is a good slow-ish speed ultralight with a surplus of climb power. Then mount a stripped down forward firing shotgun on a recoil absorbing grease lubricated mounting system, (alloy tube with glued in pvc insert lining and a grease nipple). Of course a remote triggering device will be needed obviously and a piece of string tied around the trigger and then to a convenient part of the airframe works quite well. This system will give repeatable accuracy and good service life
The best place to mount the shotgun is between the rudder pedals just outside and below the prop disc. Due to the distance between the low mounted gun and your eye sight line a sighting system will need to be employed. History shows that a spring tensioned taught piece of string attached vertically from below the overhead engine and down through the nose pod out in front of the windscreen is a simple forward sight. A movable knot along the string completing an effective and adjustable forward bead sight.
All that is now needed is the rear sight and nothing more than a fine line texta set of cross hairs, as you might guess drawn on the windscreen does the job nicely, this is cheap and effective. Undoubtedly the astute reader will wonder how distance to target can be assessed so as to determine when the angle between the bore sight line and the eye sight line coincide with the #5 shot trajectory and the effective kill range of approximately 40m. Here it is important to know the size of the target, typically a crows wingspan which is not hard to determine with the aid of a dead crow or compliant live one.
If one closes one eye whilst seated in the cockpit (on the ground) and aligning the forward bead sight with the cross hairs it becomes a simple exercise of marking (with the texta) two little vertical marks on the horizontal line of the cross hair that equates to the crows wingspan when viewed from the cockpit through the cross hairs to the forward sight and on and out to a stretched out dead crow or living as the case may be. For conformation and fine tuning a crow silhouette on an old car bonnet placed at 40m is indispensable.
All this is well and good you may ask but how would one reload such a contraption in the air whilst maneuvering at low level?. It is here that a little elemental physics and a length of thick spear gun elastic come into play. If one were to attach the spear gun rubber (or rubber sealing ring from a 12" pvc pipe) to a pair of small welded on rams horns on the stripped down breach assembly all one has to do is press the lever that breaks the breach and the elastic rubber breaks the gun leaving the wind pressure to blow the spent cartridge out of the barrel and down through the opening in the floor.
A cunning installation would of course use the same elastic chord as the primary aft recoil absorbing method and a rubber bumper or old tractor valve spring slid over the barrel as the forward return absorber which works very well.
It is said that if a system such as this is employed early enough in the season before the birds establish the orchard as a food source and an alternative food source away from the orchard is established were the birds are not harassed the battle is won with minimal killing.
However it just leaves one last question on how to actually go about doing it...but that is another story.
Of course it is only story and any resemblance to the above story and events in history is mere coincidence.
Aerial bird control has been going on for some time in fact it pre-dates the era of over the top PC and OH&S way back to a time when inventiveness was applauded......circa late 80's early nineties.
What apparently seems to work rather well in this arena is a good slow-ish speed ultralight with a surplus of climb power. Then mount a stripped down forward firing shotgun on a recoil absorbing grease lubricated mounting system, (alloy tube with glued in pvc insert lining and a grease nipple). Of course a remote triggering device will be needed obviously and a piece of string tied around the trigger and then to a convenient part of the airframe works quite well. This system will give repeatable accuracy and good service life
The best place to mount the shotgun is between the rudder pedals just outside and below the prop disc. Due to the distance between the low mounted gun and your eye sight line a sighting system will need to be employed. History shows that a spring tensioned taught piece of string attached vertically from below the overhead engine and down through the nose pod out in front of the windscreen is a simple forward sight. A movable knot along the string completing an effective and adjustable forward bead sight.
All that is now needed is the rear sight and nothing more than a fine line texta set of cross hairs, as you might guess drawn on the windscreen does the job nicely, this is cheap and effective. Undoubtedly the astute reader will wonder how distance to target can be assessed so as to determine when the angle between the bore sight line and the eye sight line coincide with the #5 shot trajectory and the effective kill range of approximately 40m. Here it is important to know the size of the target, typically a crows wingspan which is not hard to determine with the aid of a dead crow or compliant live one.
If one closes one eye whilst seated in the cockpit (on the ground) and aligning the forward bead sight with the cross hairs it becomes a simple exercise of marking (with the texta) two little vertical marks on the horizontal line of the cross hair that equates to the crows wingspan when viewed from the cockpit through the cross hairs to the forward sight and on and out to a stretched out dead crow or living as the case may be. For conformation and fine tuning a crow silhouette on an old car bonnet placed at 40m is indispensable.
All this is well and good you may ask but how would one reload such a contraption in the air whilst maneuvering at low level?. It is here that a little elemental physics and a length of thick spear gun elastic come into play. If one were to attach the spear gun rubber (or rubber sealing ring from a 12" pvc pipe) to a pair of small welded on rams horns on the stripped down breach assembly all one has to do is press the lever that breaks the breach and the elastic rubber breaks the gun leaving the wind pressure to blow the spent cartridge out of the barrel and down through the opening in the floor.
A cunning installation would of course use the same elastic chord as the primary aft recoil absorbing method and a rubber bumper or old tractor valve spring slid over the barrel as the forward return absorber which works very well.
It is said that if a system such as this is employed early enough in the season before the birds establish the orchard as a food source and an alternative food source away from the orchard is established were the birds are not harassed the battle is won with minimal killing.
However it just leaves one last question on how to actually go about doing it...but that is another story.
Of course it is only story and any resemblance to the above story and events in history is mere coincidence.
Last edited by youngmic; 18th Jan 2017 at 13:08.