Quote:
| Originally Posted by comship Mr. Klarksson from Humphrees has assured me that in the worst case they are much better than the traditional trim tabs beause virtually transfer the LCG to fore (thus getting into plane more quickly and effectively), they are made of Carbon Fiber, they are simpler to install as they do not have hysraulic system |
Interceptor a simpler, smaller and more 'compact' a transom lift device than a trim tab, yes.
More effective..
no. When comparing a properly designed trim tab system to a properly designed interceptor package of equivalent 'beam length', the L/D performance is very similar between the two for a moderate range of trim tab deflection. By 'moderate' I mean that more lift continues to accrue for a trim tab as the tab deflection angle is increased beyond about 8-10 degrees down..surpassing that of an interceptior at some point, but at increasingly unfavorable L/D numbers. However, both devices can, and do, produce the 'same' transom lift for a given case and thus, potentially, the same benefits (on a hull form where benefits can be had at all..not all hulls benefit from either device in hydrodynamic terms).
A drag improvement of 3.5% due to the addition of transom lifting devices (tabs or interceptors) is 'in the realm' of what I have seen before on certain hull types, so that part of the question could be realistic for your case..only your hydrodynamicist would know for sure.
