I was thinking of a drawing I saw in an avation magazine a long time ago (1977 or '78). Maybe AWST, maybe not, but it was of a proposal by Grumman to build a new amphibian aimed, IIRC, at the civil / corporate market. I think it resembled a modernised (for then) Widgeon, but was NOT an upgrade. Ithink it as to be 8 pax & I'm fairly sure it was to be powered by 2 TCM GTSIO-520s. I've Googled & searched here to no avail. Anyone familiar with the project? Thanks.