The trouble with reverse engineering is that you need a tech base close to what you are duplicating. Imagine sending a small pocket calculator to 1955. They could use it and replace the batteries, but when they opened it up the integrated circuits would just be a magic black squares. Doc Brown is on vacation.
Send the same device to 1970 and they would recognize the parts but still could not reverse engineer the actual chip but could match it's function with equivalants.
Send it to 1990 and they could tear it apart and reverse engineer the ICs, though it would be a while before they could develop the means to manufacture them to that degree of scale.
I do not think the Defiant could be duplicated but it could provide engineering insites which tould greatly advance the current designs. In theroy the Consitution class TOS ships could make replacement parts, but not enough to actually build a second vessel. The Defiant would be best served as an engineering guide but used as an ultimate weapon. The library computers could provide tech data for a new industrial base for components for future ships but it would be a while before they could be built IMO.
Send the same device to 1970 and they would recognize the parts but still could not reverse engineer the actual chip but could match it's function with equivalants.
Send it to 1990 and they could tear it apart and reverse engineer the ICs, though it would be a while before they could develop the means to manufacture them to that degree of scale.
I do not think the Defiant could be duplicated but it could provide engineering insites which tould greatly advance the current designs. In theroy the Consitution class TOS ships could make replacement parts, but not enough to actually build a second vessel. The Defiant would be best served as an engineering guide but used as an ultimate weapon. The library computers could provide tech data for a new industrial base for components for future ships but it would be a while before they could be built IMO.