A platform (506; 606) for a gas turbine engine, the platform comprising: a flow structure (538; 638) defining a gaspath surface (526; 626) and a non-gaspath surface (524; 624), the flow structure extending between a front end and a rear end and between a first edge and a second edge; a platform connector (516a-c; 616a-c) extending from the non-gaspath surface; a first layer (540; 640) forming a part of the flow structure including the gaspath surface, the first layer being a non-continuous layer terminating at the front end, the rear end, the first edge, and the second edge; a second layer (542; 642) forming a part of the flow structure and a part of the platform connector, the second layer being a non-continuous layer terminating at the front end, the rear end, the first edge, and the second edge, wherein the second layer contacts the first layer proximate the first and second edges; and a third layer (544; 644) forming a part of the flow structure and defining an internal void, the third layer being a continuous layer arranged between the first layer and the second layer, wherein the third layer contacts the first layer to define a part of the flow structure, and the third layer contacts the second layer to define a part of the platform connector; characterized by: a first support body (546a; 646a) arranged between each of the first layer (540; 640), the second layer (542; 642), and the third layer (546; 646) and forming part of the flow structure (538; 638); and a second support body (546b; 646b) arranged between the second layer (542; 642) and the third layer (544; 644), wherein the support body forms a part of the platform connector (516a-c; 616a-c); wherein the second support body (546a; 546b; 646a; 646b) includes a securing element (528; 628) configured to receive a locking pin. a flow structure (538; 638) defining a gaspath surface (526; 626) and a non-gaspath surface (524; 624), the flow structure extending between a front end and a rear end and between a first edge and a second edge; a platform connector (516a-c; 616a-c) extending from the non-gaspath surface; a first layer (540; 640) forming a part of the flow structure including the gaspath surface, the first layer being a non-continuous layer terminating at the front end, the rear end, the first edge, and the second edge; a second layer (542; 642) forming a part of the flow structure and a part of the platform connector, the second layer being a non-continuous layer terminating at the front end, the rear end, the first edge, and the second edge, wherein the second layer contacts the first layer proximate the first and second edges; and a third layer (544; 644) forming a part of the flow structure and defining an internal void, the third layer being a continuous layer arranged between the first layer and the second layer, wherein the third layer contacts the first layer to define a part of the flow structure, and the third layer contacts the second layer to define a part of the platform connector; characterized by: a first support body (546a; 646a) arranged between each of the first layer (540; 640), the second layer (542; 642), and the third layer (546; 646) and forming part of the flow structure (538; 638); and a second support body (546b; 646b) arranged between the second layer (542; 642) and the third layer (544; 644), wherein the support body forms a part of the platform connector (516a-c; 616a-c); wherein the second support body (546a; 546b; 646a; 646b) includes a securing element (528; 628) configured to receive a locking pin. a first support body (546a; 646a) arranged between each of the first layer (540; 640), the second layer (542; 642), and the third layer (546; 646) and forming part of the flow structure (538; 638); and a second support body (546b; 646b) arranged between the second layer (542; 642) and the third layer (544; 644), wherein the support body forms a part of the platform connector (516a-c; 616a-c); wherein the second support body (546a; 546b; 646a; 646b) includes a securing element (528; 628) configured to receive a locking pin.