Hi Wayne:

The 1200 utilizes the Yellow, MEDIUM offset hinge and the 2300 uses the LARGE offset hinge.

They are sold in pairs and you will need 3 pair per aircraft.

I will have Great Northern post this mod to their web site this evening.
(www.greatnorthernmodels.com) A simplified sample skecth attached.

While the FACET flaps are very effective as designed, we are always looking to inprove our prodcuts and when I saw these flap hinges at Toledo ' 03, I decided to give them a try on our next factory ship. The use of thes hinges has enhanced the flap performace even fruther and is worth the effort and minimal cost to install.

These are very easily retrofitted to all exisitng completed ships.