No they are not an F16. Too much sail amoungst a couple of other minor differences.
There is no such thing as "grandfathered" anymore. It measures or it does not. If you wish to race head to head in a local event they are relatively close though and in good hands pretty fast.
Not completly thru, the Spitfire is not grantfathered anumore , so no F16, but the Stealth R and Taipan 4.9 ( with F16 spi )are still in the F16 class grantfathered, actually they are the foundation boats.
Regards,
Hans
