If you're planning on converting a 1/48 SH-3 to an HH-3, you might want to reconsider. You're looking at scratchbuilding the entire fuselage. The SH-3 has basically a boat hull fuselage ending in a pointed aft fuselage while the HH-3 is different aft of the cockpit with a flatter underside ending up in a flat ramp area sloaping upward to the boom. The SH-3 has sponsons attached to struts just aft of the cockpit and forward of the rotor head. The HH-3 has sponsons (different shape roughly like an airfoil) located aft of the rotor head. Entry doors and hoists are in different locations as well. If you're planning on converting the Wessex variant of the SH-3, you'll encounter additional issues. Unless you're a real masochist, you might want to rethink this or build in 1/72 scale using the old Revell HH-3.
I've got some photos for comparison but, for the life of me, I can't figure out how to get them posted to this forum. If someone could enlighten me, I'll send them along. Otherwise, contact me directly and I'll e-mail them.
Ed
Ed R.
Special Operations
Any time, any place