S-76 and sand
An S76 B model with EAPS should remove the sand for the engines.
The tyre pressure of (I think) 160 psi might be a worry. They sink into soft grass up to the axles, but don't break the brake lines off like some other types do. Never landed one on a beach, though...
The tyre pressure of (I think) 160 psi might be a worry. They sink into soft grass up to the axles, but don't break the brake lines off like some other types do. Never landed one on a beach, though...
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I worked on one in a sandy environment and even on a compacted surface it was a problem moving it. You will struggle, IMO.
The EAPS will help, but you will still get reduced life on the engines and erosion on the blades.
The EAPS will help, but you will still get reduced life on the engines and erosion on the blades.
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I have used metal grids to spread the load and it works a treat. Just make sure you use deep pegs. If the sand is damp you should be able to negate corrosion by blowing it. Your biggest problem is going to be the salt-laden atmosphere and you are going to need to fresh-water wash the airframe and engines on a daily basis.
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I would seriously be much more concerned about the effects of sand on compressors and blades for repeated ops, than landing in the sand (steel mats, mesh etc can manage that for you).
Sand may mean beach - beach means salt water and salt spray. That of itself would be another concern and will raise issues on any aircraft with repeated exposure.
Even with Centrisep Eaps, I think you're still going to see some additional engine overhaul costs, although obviously much better than without it. Does Pall even have an installation for the S76B PT6 installation (not too many S76B variants I would have thought to justify development - curious myself). None of it will help with M/R and T/R blade erosion though (tapes etc just aren't that effective) - ouch!
Sand may mean beach - beach means salt water and salt spray. That of itself would be another concern and will raise issues on any aircraft with repeated exposure.
Even with Centrisep Eaps, I think you're still going to see some additional engine overhaul costs, although obviously much better than without it. Does Pall even have an installation for the S76B PT6 installation (not too many S76B variants I would have thought to justify development - curious myself). None of it will help with M/R and T/R blade erosion though (tapes etc just aren't that effective) - ouch!
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If you're not paying the Bills
The S-76 will land on the beach very well.
But I would hate to imagine the additional cost of doing so on a regular basis. I personally would not drive my $15 million dollar car on the beach. You will have sand everywhere to deal with and shortened life of everything.
But I would hate to imagine the additional cost of doing so on a regular basis. I personally would not drive my $15 million dollar car on the beach. You will have sand everywhere to deal with and shortened life of everything.
These could help blade erosion if you can procure products & clear for use
http://rain-sand-erosion.com/SCHPubl...rcraft2005.pdf
http://rain-sand-erosion.com/SCHPubl...ngsandMold.pdf
Another possible product
http://www.asm-usa.com/coatings/aerocoat.pdf
http://rain-sand-erosion.com/SCHPubl...rcraft2005.pdf
http://rain-sand-erosion.com/SCHPubl...ngsandMold.pdf
Another possible product
http://www.asm-usa.com/coatings/aerocoat.pdf
