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matelot1965  
#1 Posted : 21 March 2014 11:06:49(UTC)
Rank: Forum user
matelot1965

Currently we need to fit heavy/bulky equipment to a helicopter. The helicopter design prevents us moving these items directly underneath the helicopter where they need to be fitted. They have to be man-handled by three people to be fitted in position. We normally move these items using a manual pallet truck as close to the helicopter as possible. However if we could source a pallet truck with a sliding base this would go some way to alleviating the heath risks posed by man-handling these items when fitting them to the helicopter. Height is not an issue as we know we can source a pallet truck to give us the correct height. Any ideas/info would be gratefully appreciated VMT Derek
chris.packham  
#2 Posted : 21 March 2014 11:33:42(UTC)
Rank: Super forum user
chris.packham

Derek I don't know whether this will be helpful, but I once was able to solve a similar system, moving a very heavy part for a machine tool into place. This involved a platform which 'floated' on compressed air. It was thin and could easily be moved by one person, despite the weight of the load. You just had to keep the kinetic energy/momentum factor in mind! I cannot remember at this distance in time who manufactured these but a trawl of the Internet might reveal something. Chris
matelot1965  
#3 Posted : 21 March 2014 22:40:02(UTC)
Rank: Forum user
matelot1965

chris.packham wrote:
Derek I don't know whether this will be helpful, but I once was able to solve a similar system, moving a very heavy part for a machine tool into place. This involved a platform which 'floated' on compressed air. It was thin and could easily be moved by one person, despite the weight of the load. You just had to keep the kinetic energy/momentum factor in mind! I cannot remember at this distance in time who manufactured these but a trawl of the Internet might reveal something. Chris
Hi Chris Thanks for the reply Chris it is something I will look at it VMT Derek
Juan Carlos Arias  
#4 Posted : 22 March 2014 09:02:45(UTC)
Rank: Forum user
Juan Carlos Arias

Can you not use the standard pallet truck and then skates time help you move the load a little closer to the fitting point?
matelot1965  
#5 Posted : 22 March 2014 19:00:53(UTC)
Rank: Forum user
matelot1965

Juan Carlos Arias wrote:
Can you not use the standard pallet truck and then skates time help you move the load a little closer to the fitting point?
Juan I do not know what skates time is fella VMT Derek
Juan Carlos Arias  
#6 Posted : 22 March 2014 21:07:04(UTC)
Rank: Forum user
Juan Carlos Arias

Sorry, it should have read "skates to" and I'm talking about load shifting skates.
ExDeeps  
#7 Posted : 23 March 2014 08:36:07(UTC)
Rank: Super forum user
ExDeeps

Matelot1965, Juan Carlos Aria is referring to a simple air cushion device, usually fed from an air line that can be used to just lift a load and reduce friction. Very useful in some situations, I've seen two men moving over 15 tonnes with one. In your situation it might not be quite so useful, as from your name I reckon your fleet air arm so fitting things to helo's on an airfield will require long long air hoses or a compressor, or on deck you really don't want a frictionless load to controll as the deck heaves and rolls, Jim
matelot1965  
#8 Posted : 23 March 2014 19:58:24(UTC)
Rank: Forum user
matelot1965

Hi Juan/Exdeeps Guys thanks for clearing the skates thing up. Deeps I am ex fleet air arm but it is fitting parts to helos inside an airfield hangar (no oggen to worry about lol). I have seen the skates thing online. I do not think it will be suitable for fitting parts to aircraft under tight tolerances and space constraints. The idea of fitting a friction-less load to an aircraft is kinda scary. I think we would do more damage to the aircraft lol
SNS  
#9 Posted : 23 March 2014 22:04:37(UTC)
Rank: Super forum user
SNS

Hi Matelot - (should that not be wafoo?) Try Portsmouth Aviation, they will probably be pleased to design something specific. You may have come across their kit in your previous life :) Regards, S ex RAF & Boscpmbe Down
chris.packham  
#10 Posted : 24 March 2014 07:31:50(UTC)
Rank: Super forum user
chris.packham

Some years ago I had occasion to use an airlift type pallet to position some heavy machine tool equipment. I found that with two people we could locate it very precisely, then by shutting off the air supply the system became a firm, unmoving platform from which to work. Chris
chris42  
#11 Posted : 24 March 2014 08:59:32(UTC)
Rank: Super forum user
chris42

Hard to imagine what exactly you are doing, but it sounds as if you will transport the item on a hand pallet truck under the craft then raise it up with the pallet truck. You then want to jiggle it a bit to get alignment to attach. Could you use two steel plates with PTFE on them, so the two PTFE plates are against one another. The bottom one could be made to clamp to the pallet truck and the top plus load held in place by strap until final jiggling is required. Thickness of plate determined by weight of load. I have seen some very heavy things moved on PTFE sheets. If you wanted to limit the x/y movement then make the bottom plate a tray, with the upper plate slightly smaller (or even round). I’m probably on the wrong track, but just a thought. Chris
matelot1965  
#12 Posted : 25 March 2014 11:03:56(UTC)
Rank: Forum user
matelot1965

SNS wrote:
Hi Matelot - (should that not be wafoo?) Try Portsmouth Aviation, they will probably be pleased to design something specific. You may have come across their kit in your previous life :) Regards, S ex RAF & Boscpmbe Down
Hi SNS thanks for the info mate eer it should be WAFU not wafoo lol
matelot1965  
#13 Posted : 25 March 2014 11:07:35(UTC)
Rank: Forum user
matelot1965

Chris42 wrote:
Hard to imagine what exactly you are doing, but it sounds as if you will transport the item on a hand pallet truck under the craft then raise it up with the pallet truck. You then want to jiggle it a bit to get alignment to attach. Could you use two steel plates with PTFE on them, so the two PTFE plates are against one another. The bottom one could be made to clamp to the pallet truck and the top plus load held in place by strap until final jiggling is required. Thickness of plate determined by weight of load. I have seen some very heavy things moved on PTFE sheets. If you wanted to limit the x/y movement then make the bottom plate a tray, with the upper plate slightly smaller (or even round). I’m probably on the wrong track, but just a thought. Hey Chris sounds like an idea worth investigating i think cheers mate Chris
fairlieg  
#14 Posted : 25 March 2014 15:49:34(UTC)
Rank: Forum user
fairlieg

could a modified version of this be the answer http://www.lkgoodwin.com...es/low_scissor_table.jpg Not associated with the company in anyway
matelot1965  
#15 Posted : 25 March 2014 19:32:15(UTC)
Rank: Forum user
matelot1965

fairlieg wrote:
could a modified version of this be the answer http://www.lkgoodwin.com...es/low_scissor_table.jpg Not associated with the company in anyway
Yes possibly fairlieg we already have a couple of scissor tables that we tried out but it was unsuccesful in the first instance the pallet truck was the better option for us and so we decided to investigate that further
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