Results 1 to 18 of 18

Thread: Laser Pointers

  1. #1
    Join Date
    Oct 2010
    Location
    Mokopane
    Age
    55
    Posts
    1,154
    Thanked: 375

    Default Laser Pointers

    Hi all on this section, I need your help to raise awareness. We as pilots are experiencing a huge problem and danger in aviation. It occurs frequently that people point green laser pointers at aircraft at night. This actually blinds the pilots as the laser beam chages from a beam to a flash as it hits the cockpit windows. Some people were arrested in Bloemfontein for pointing these lasers at helicopters. I know I am talking to sensible people here and want to ask you to please make others aware of this problem and of the dangers of pointing these devices at aircraft at night. We might get a situation where authorities might ban these pointers and that would be sad for those who use them for what they are intended for. http://www.avcom.co.za/phpBB3/viewtopic.php?f=1&t=89016

    A topic from "Avcom" about these incidents. There is also a couple of clips on Youtube where you can see the affect it has in the cockpit http://www.youtube.com/watch?v=iI7Qq1mYQlI
    Last edited by retailer; 2012/07/18 at 07:56 AM.
    Die reën is 'n dag nader as gister.

  2. #2
    Join Date
    Apr 2007
    Location
    Pretoria North, Patryshoek
    Age
    63
    Posts
    16,449
    Thanked: 3273

    Default

    I don't have a laser light, but I must admit. I never even gave it a 2nd thought.

    I take note....
    LC 78 Troopie 1HD-FTE
    +27 zero eight 2 four 95 9252

  3. #3
    Join Date
    Oct 2010
    Location
    Mokopane
    Age
    55
    Posts
    1,154
    Thanked: 375

    Default

    Thanks Henri, and when in Potties again, at least pop in and say Hi. First shop on your left as you enter Potties from Polokwane :-)
    Die reën is 'n dag nader as gister.

  4. #4
    Join Date
    Apr 2007
    Location
    Pretoria North, Patryshoek
    Age
    63
    Posts
    16,449
    Thanked: 3273

    Default

    Fruit and veg? Was in there on Saturday morning. Got some biltong. Very nice I might add.
    LC 78 Troopie 1HD-FTE
    +27 zero eight 2 four 95 9252

  5. #5
    Join Date
    Jan 2008
    Location
    North of Zambezi
    Posts
    5,073
    Thanked: 761

    Default

    I do have a lazer pointer but cant believe that people can be so daft to point at aircraft.

  6. #6
    Join Date
    Nov 2007
    Location
    Durban
    Age
    53
    Posts
    356
    Thanked: 0

    Default

    Pointing lasers at planes is just plain stupid, but what I find more concerning in that story is that a private organisation seems to have the authority to close airspace over a city for their own private purposes.

    The arrest of the three comes after acting national police commissioner Lieutenant General Nhlanhla Mkhwanazi said on Thursday a no-fly zone had been declared above Bloemfontein and that the airspace in the area will be monitored during the ANC centenary celebrations over the weekend.
    I wonder if they'd ban planes from flying over my neighbourhood while we hold my dad's 70th birthday party next weekend, or would they only consider it if he was turning 100?

    Another case of TIA, I guess.

  7. #7
    Join Date
    Oct 2010
    Location
    Mokopane
    Age
    55
    Posts
    1,154
    Thanked: 375

    Default

    Quote Originally Posted by Henris View Post
    Fruit and veg? Was in there on Saturday morning. Got some biltong. Very nice I might add.
    Dankie, jy bars as jy nie volgende keer kom groet nie, hiers altyd koffie!
    Die reën is 'n dag nader as gister.

  8. #8
    Join Date
    Oct 2010
    Location
    Mokopane
    Age
    55
    Posts
    1,154
    Thanked: 375

    Default

    Quote Originally Posted by SteveB View Post
    Pointing lasers at planes is just plain stupid, but what I find more concerning in that story is that a private organisation seems to have the authority to close airspace over a city for their own private purposes.

    I wonder if they'd ban planes from flying over my neighbourhood while we hold my dad's 70th birthday party next weekend, or would they only consider it if he was turning 100?

    Another case of TIA, I guess.
    We had a lot of airspace closures and limitations during the world cup. Africa is not to blame, it's the clowns who pilotted the airliners into the World Trade Centre!
    Die reën is 'n dag nader as gister.

  9. #9
    Join Date
    May 2007
    Location
    False Bay, Cape Town /\/¯¯¯¯¯\/\
    Age
    54
    Posts
    500
    Thanked: 0

    Default

    someone gave my 9 year old one for his birthday, and I cannot believe how powerful they are! However, they know full well that they don't get shone at eyes, or ANY vehicles, be it on the road or in the air! Outside, never without supervision, just in case.
    ZS1ZW

    Every day is a school day!
    I have taken a vow of poverty............To annoy me, send me money.
    If you cannot fix it with a hammer, then you have an electrical problem.

  10. #10
    Join Date
    Jul 2012
    Location
    Kempton Park
    Age
    70
    Posts
    10
    Thanked: 6

    Default Green Laser Light

    We discovered another use for these green laser lights! During the month of April, we had some family over one evening. Most of the guests had parked on the road and everytime one of them left with their vehicle, a green laser light was pointed at the people and cars. We did not think much about it, until the last one left and the we got hijacked in our driveway. This laser pointer seems to be used as a marker for the hijackers, so beaware. Lawrence

  11. #11
    Join Date
    Nov 2011
    Location
    Mossel Bay
    Age
    64
    Posts
    2,041
    Thanked: 800

    Default

    Quote Originally Posted by cockroach View Post
    someone gave my 9 year old one for his birthday, and I cannot believe how powerful they are! However, they know full well that they don't get shone at eyes, or ANY vehicles, be it on the road or in the air! Outside, never without supervision, just in case.
    cockroach, do you know why the person choose a laser as a birthday present for a 9 year old over a million other cool toys I can think of?

    Outside military use we started using lasers as pointers in meetings and lectures. Then the astronomers discovered that more powerful green lasers was pretty useful in pointing out stars during stargazing outings. Suddenly every cool cat and his mate have to have one and the output power is steadily increasing. The fact that there are a power limit by law does not seems to make a difference as it is virtually impossible to regulate.

    I just cannot understand what is the need for 99.9% of the people having one. I have an emergency flashlight with a strobe and a red laser pointer in. Apart from annoying a dog or cat from time to time I have never found a USEFUL use for the laser part.

    I would be glad if someone (not only cockroach) can tell me what the attraction of these devises are.
    Cobus
    Jimny

  12. #12
    Join Date
    May 2007
    Location
    False Bay, Cape Town /\/¯¯¯¯¯\/\
    Age
    54
    Posts
    500
    Thanked: 0

    Default

    Quote Originally Posted by jab2 View Post
    cockroach, do you know why the person choose a laser as a birthday present for a 9 year old over a million other cool toys I can think of?
    Sheer insanity? It's the only reason I can think of. However, it was from another 9 year old.

    To be fair, it is actually one which has a pattern filter on it, so I think the idea is more for it to create a dikskou in your room. Unfortunately, the filter is the first thing that falls off.

    The uses I can think of:
    1. A laser pointer is incredibly useful for presentations.
    2. With adult supervision - education. Amazing to teach the kids about light, reflection, refraction, etc. with it. Also at night it shows clearly how much rubbish is in the air we breathe all the time.
    3. In the cape winter, it exercises our dumb mutt. She doesn't go insane chasing it if you move it around slightly, but she will run up and down the passage after it, avoiding the need for tracking loads of mud in the house.

    I assume there are a bunch of other scientific uses, but for the average Joe Citizen, nothing much.
    ZS1ZW

    Every day is a school day!
    I have taken a vow of poverty............To annoy me, send me money.
    If you cannot fix it with a hammer, then you have an electrical problem.

  13. #13
    Join Date
    Sep 2006
    Location
    Port Elizabeth
    Age
    51
    Posts
    3,227
    Thanked: 589

    Default

    I have a green one and played around with it at the 1st camping trip. Pretty impressive, even on an overcast day. Haven't touched it since but was thinking of mounting it on my pellet gun, just for fun.

    I also think it is not ideal for a 9 year old.
    2004 Defender 110 Td5


  14. #14
    Join Date
    May 2007
    Location
    False Bay, Cape Town /\/¯¯¯¯¯\/\
    Age
    54
    Posts
    500
    Thanked: 0

    Default

    Quote Originally Posted by Dawid View Post
    I also think it is not ideal for a 9 year old.
    I agree with you on this one. I wouldn't have done it myself, but you never know some people

    Hence the adult supervision requirement. If not, it gets confiscated.
    ZS1ZW

    Every day is a school day!
    I have taken a vow of poverty............To annoy me, send me money.
    If you cannot fix it with a hammer, then you have an electrical problem.

  15. #15
    Join Date
    Oct 2010
    Location
    Mokopane
    Age
    55
    Posts
    1,154
    Thanked: 375

    Default

    These powerful green laser pointers is used to point out stars, constellations and planets. Very usefull when in the right hands. It would be sad if it gets regulated like a firearm. Imagine if you need a license to own one because of a couple of idiots pointing it at aircraft!
    Die reën is 'n dag nader as gister.

  16. #16
    Join Date
    Nov 2011
    Location
    Mossel Bay
    Age
    64
    Posts
    2,041
    Thanked: 800

    Default

    Quote Originally Posted by retailer View Post
    These powerful green laser pointers is used to point out stars, constellations and planets. Very usefull when in the right hands. It would be sad if it gets regulated like a firearm. Imagine if you need a license to own one because of a couple of idiots pointing it at aircraft!
    That is about the best use I have seen, as I mentioned in my previous post. I have friends who are pilots and others who are amateur astronomers, and some who are both, so am sort of in between the usefulness and the annoyance. If the misuse is increasing, and it seems it is, then regulation will follow. I would hate to have this very useful tool in astronomical teaching be taken away, but I get frustrated by the lack of education about its uses, and misuse from the astronomical fraternity. Yes, some do point out the danger of pointing towards aircraft, but these people are in the minority, it seems. The only group currently giving green lasers any airtime are the aviation crowd, and that is invariably the regulate to death, and shoot the perpetrator kind of response. I would have thought the astronomical crowd would be a little bit more vocal, and visible in making an effort to education people on the dangers of the misuse of lasers, specially the more powerful green ones.
    Last edited by jab2; 2012/07/19 at 08:51 AM.
    Cobus
    Jimny

  17. #17
    Join Date
    Sep 2006
    Location
    Southampton
    Age
    53
    Posts
    11,400
    Thanked: 288

    Default

    Quote Originally Posted by retailer
    These powerful green laser pointers is used to point out stars, constellations and planets. Very usefull when in the right hands. It would be sad if it gets regulated like a firearm. Imagine if you need a license to own one because of a couple of idiots pointing it at aircraft!
    You already need a permit to own the more powerful ones. They'll just change the threshold

    Sent from my Motorola DynaTAC
    Carpe Diem Scrotum
    Give a man a beer, waste an hour. Teach a man to brew, and waste a lifetime!

  18. #18
    Join Date
    Jul 2012
    Location
    Malmoe
    Age
    83
    Posts
    1
    Thanked: 0

    Default

    Hi Friends!
    Is it allowed to bring in a 5 mW alt. 50 mW astronomy laser pointer to South Africa from Europe? We are in a planning stage for 3 groups of birdwatchers and photo freaks.
    Plese, advice.
    Lennart - Sweden

Similar Threads

  1. Replies: 9
    Last Post: 2012/07/25, 01:33 PM
  2. Aluminium checker plate and laser cutting?
    By AllanDrover in forum General 4x4 Discussion
    Replies: 3
    Last Post: 2011/07/09, 10:29 AM
  3. Replies: 9
    Last Post: 2010/11/25, 10:15 AM
  4. Laser Cutting and Bending supplier??
    By Barto in forum General 4x4 Discussion
    Replies: 3
    Last Post: 2006/11/16, 06:40 PM
  5. Replies: 19
    Last Post: 2006/11/09, 06:06 PM

Bookmarks

Posting Permissions

  • You may post new threads
  • You may post replies
  • You may post attachments
  • You may edit your posts
  •