68vitesse Posted March 29 Report Share Posted March 29 Makes my method of making a concrete former, cast in the air box, when I made my Stainless Steel air box seem very old fashioned. Regards Paul. Link to comment Share on other sites More sharing options...
Ian Foster Posted March 30 Report Share Posted March 30 (edited) 16 hours ago, micmak said: Holy smokes Guys, My little question about missing inlet hoses/tubes has taken on a whole new life of it’s own! That's call thread drift. Triumph forums are well known for it. Fun eh?! Uncle I like your design and it a further refinement of where Triumph managed to get to in the mid 1970s. I don't have enough space to take the feed pipes across the face of the box as I have 175CD carbs, hence the bulbous affair on the front of my mock-up. John Aluminium honeycomb is the most efficient way of producing sandwich construction and is probably best suited to reasonably flat panels. It can suffer from delamination if in high performance yachts where they experience severe slamming. The marine industry typically use end grain balsa in deck mouldings and foam in sandwich construction hulls. Ian Edited March 30 by Ian Foster Link to comment Share on other sites More sharing options...
Iain T Posted March 30 Report Share Posted March 30 (edited) 13 hours ago, 68vitesse said: Makes my method of making a concrete former, cast in the air box, when I made my Stainless Steel air box seem very old fashioned. That's how my friend made the steel flared arches for his Sebring MGB V8. Fibre glass reverse off his wrecked Sebring then concrete male hammerform. Iain Edited March 30 by Iain T Link to comment Share on other sites More sharing options...
JohnD Posted March 30 Report Share Posted March 30 (edited) 2 hours ago, Ian Foster said: John Aluminium honeycomb is the most efficient way of producing sandwich construction and is probably best suited to reasonably flat panels. It can suffer from delamination if in high performance yachts where they experience severe slamming. The marine industry typically use end grain balsa in deck mouldings and foam in sandwich construction hulls. Ian Ah! That's why I used paper honeycomb! A LOT cheaper than aluminium. 'Slamming' isn't something seen in cars even competition ones, until disaster happens: Gel-coat + single layer matt outer coat, honeycomb attached with expanding polyurethane foam, inner coat single layer of glass tissue/resin. Result: That roof was stiff and solid at 124mph on the 'Ring, but when the roof hits the road: Hey,ho that's motor racing. John Edited March 30 by JohnD Link to comment Share on other sites More sharing options...
Ian Foster Posted March 30 Report Share Posted March 30 John I think we can safely say 'that has been slammed'!! Ian Link to comment Share on other sites More sharing options...
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