Both the Mossie and Cobra are great boats.
I've owned both over the years, and the first boat I ever built was a Cobra.
Basically the Mossie was designed by Neil Fowler and the Cobra designed by Peter Fletcher. For a short time Peter was building Mosquitos.
I believe the Cobra design was based on the Mossie with a few changes. He did things like increase the volume in the bows and moved to stronger beams. The pivoting centreboards were added and with these changes came the inevitable increase in total weight.
So the Cobra actually weighs more than the Mossie.
The Mossie unrigged has a min weight of 55kg while the Cobra unrigged but with centreboards has a min weight of 77kg.

So even when the weight of the boards are taken into account the Cobra will come out the heavier boat. Given the Mossie can compete under the F16 umbrella weight would not be an issue for the Cobra. I would expect that a rigged Cobra would weigh at least as much as a rigged Taipan.
It would be great to see these boats active in the F16 divison in Australia.

On the issue of the NSW F16 Challenge.
Andrew Williams has until Feb 22 to announce the date and venue of the F16 Challenge and that date must be prior to May 22. I expect there may be 4 or more boats from my club interested in participating in the event and the Cobras and Mosquitos would be most welcome.

Regards,
Phill Brander
Australian F16 Representative