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David has a point
1. If you must add foam, add it as low as possible.
If the float is holed badly so that it has no integrity below the 'normal ' waterline, having the foam on the bottom means you will sink less before the foams' buoyancy kicks in. If it is suspended in the middle etc you have say another 6 inches to sink before it even begins to work. This adds difficulty to taxiing etc , so having the foam down low may well leave you with far fewer problems in an emergency.
I suppose that you to balance the need for routine inspection against the need for immediate effect in case a float is holed where/when you least need it. If its a routine inspection, 5 minutes of difficult fiddling is a small price to pay (to see inside) if it means the foam float offers more buoyancy at an instants notice.
And I thought the Albatros had some curly problems...
chris
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