drop

A drop tower or big drop is a type of amusement ride incorporating a central structure or tower. Drop towers vary in height, passenger capacity, lift type, and brake type. Many are custom-made, although there are some mass-produced designs. The most widely sold drop towers have been manufactured by Intamin and S&S Sansei, however Larson International and Funtime have their own drop tower models available as well. Riders initially experience free fall, followed by rapid heavy deceleration.
With most drop towers, a gondola carrying riders is lifted to the top of a large vertical structure, then released to free-fall down the tower. Brakes slow the gondola as it approaches the bottom of the ride. Some designs expand on this concept with features such as rotating gondolas, or several bounces before coming to rest.Most drop towers require child riders to exceed a minimum height; limits vary widely depending upon the nature of the tower, with a 9-metre (30 ft) tower for smaller children from 95 centimetres (37 in) tall, and a 35-metre (115 ft) tower having a 130-centimetre (51 in) restriction.

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  1. M

    Gas pressure drop with flow to a larger pipe from a smaller one?

    Hi, Non-professional / knowledgeable person here. I'm a Brit in Romania who volunteers for a charity building an old peoples home for needy old people. Out here competence and integrity is harder to come by in a worker, in fact it's hard to find workers at all where we are in the countryside...
  2. D

    Slight pressure drop.

    Hi. I have a boiler which is approx ten years old. A few months ago we had the expansion vessel replaced by a BG plan but noticed that there was a slight pressure drop since they fitted it. The copper pipe outside had an odd drip here and there. On top of that I had to have a valve on one of the...
  3. J

    pump on solid fuel to overcome pipe drop

    Hi Looking at some time connecting my solid fuel boiler up to HW cylinder, problem i have is where cylinder is the first floor drops by about 350mm so can not get a continues rise in pipe work, attached should be a diagram i think would overcome this issue, can you see any issues with what i...
  4. P

    URGENT Why the sudden drop in kitchen faucet water pressure?

    Just had strange occurrence and hope someone can please help. Noticed a small leak under kitchen sink. Wanted to troubleshoot shut off valves for possible leak, so I turned them off and on moved them back-and-forth some to check for leak. Nothing. However, upon reopening both supply valves...
  5. T

    What causes pressure drop?

    My boiler is a new build boiler, currently 8 years old. The boiler has been working perfectly with no issues at all! We had our routine boiler check and ever since the boiler keeps losing pressure. The boiler company insist the boiler is fine and that we MUST have a leave somewhere. They have...
  6. M

    sudden pressure drop on boiler

    hi im new to this so thought i’d come on and ask if anyone came across same problem.. done a boiler 2 years ago (vaillant system boiler) and its been fine whole time, lately his pressure been dropping, tops it up and lasts 4 or 5 days then drops from 1.7bar ish to 0.0bar. not a gradual drop so...
  7. R

    Waste pipe blockage because of drop?

    Hi, I'm not a plumber so I need some info/advice... I recently renovated a bungalow, which has all gone well and isn't the problem, but since moving in our drains block. The first time severn Trent came out and unblocked them, but said they shouldn't really be doing it as its on our driveway...
  8. K

    1.1mb drop?

    I do this quite a bit but just wanted to check with you guys and see where we recon I stand if it goes wrong. I quoted for boiler replacement without upgrade of gas supply to 22mm and quoted separately for upgrading pipe 'if required'. When commissioning I dumped the digital gauge in favour of...
  9. R

    The idea of balancing a system is to try and get the pressure drop of all circuits equal to that of the index circuit.

    Hi. Just trying to get my head around how this relates to the temperature drop across the circuit. Not disputing that the two are related (obviously we measure temperature as that is easier) but I don't understand the process. This came up on another thread and I didn't want to sidetrack the...
  10. D

    Worcester Bosch 32CDI . lots of air in Rads but no drop in pressure? please help

    Hi, i hope you can shed some light on this , Combi Boiler is located in the loft and was installed March 2020 on existing pipe work/ radiators , i topped up (2) radiators up stairs in October 20 it took a lot of water! Boiler pressure is set to 1.5 bar (cold resting) and never drops. But found...
  11. J

    Best solution to slightly rising waste pipe problem

    Hi guys. I moved into a house where the kitchen was moved from an upper floor to the ground floor, at the back of the house, so there was no existing soil pipe near to the kitchen double sink and dishwasher. In their infinite wisdom, the plumbers who set this up ran a very long length of waste...
  12. B

    Pressure Drop with Hot Water flow - Ideal Vogue S32 Gen 2

    Hi there, I have a Vogue S32 Gen 2 in an empty rental property and noticed that the Boiler Pressure Gauge was high at about 3 bar. It may be that the old Tenants over pressured it with the filling loop, as I’ve certainly only filled it to 1.5 bar historically. I drained down the CH water...
  13. R

    Rinnai B26 instant HW functions? temp sense or pressure drop?

    have a question for plumbers and or people in the know! I have a Rinnai B26 instant hot water unit that i had plumbed in line after a solar hot water storage tank. NOTE: the solar hot water part is a evacuated solar tube heater that circulates the water to a 135 litre ex gas storage cylinder...
  14. L

    Broken 8" drop drain tee

    Hi guys, I'm not a plumber but I am in the trade so I do have some knowledge, but this one is a bit tricky. I have an old concrete manhole with an 8" clay pipe drop drain going into it from approx a meter up. Now someone in their wisdom has joined into this pipe with 6" plastic and just sat...
  15. S

    Shower pressure drop

    I have two showers in my house. ALL heat and hot domestic water is provided by oil fired boiler Only one shower can be used at a time or the pressure drops to a trickle. In fact if one is in use and hot water is turned ANYWHERE else in the house the same thing happens. There is a mixing valve in...
  16. E

    Cleaning Gutters with drop down Scrapers

    I have come across 2 drop down scrapers which screw onto drainage rods. One made by Horobin is over £6 and the other by Silverline just over £3. By the pics they look identical. Anyone got experience of either make. I normally clean the gutters on our bungalow 3-4 times a year, important if lots...
  17. S

    Drop fed rads - draining from rad tail.

    Im planning to drain down my CH system to do some work on it and also replace a couple of rads. All of the downstairs rads are on individual drop feeds with most of the pipe work on 10mm microbore ( a few have had 15mm adapters and 15mm pipe added) There are no drain cocks on any of the rads...
  18. S

    Pressure drop after cleaning filter

    I cleaned out the magnetic filter on my Worcester boiler for the first time and the pressure has dropped from about 1.7 bar to 1 bar. What could the reason be?
  19. T

    Hi.... and a combi boiler pressure drop query!

    Hi Just joined forum as amateur DIY guy and wonder if anyone here can help me. I have a Vaillant 828 Turbomax Combi boiler which I’ve had for about 16 years old. I monitored the pressure yesterday & saw that it was quite low (around 1) so I topped it up to just over 2 and when I went back to it...
  20. E

    0.5mb drop on tightness test - Should I be worried?

    Hi everyone, Just looking for some advice/reassurance. My boiler had its second annual service today and the (gas safe) engineer recorded a 0.5mb drop on the tightness test. He assured my partner that this was nothing to worry about but as I wasn't home at the time I just wanted reassurance...
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