Mike .........
I opened the yellow one and looked at the textures. The fuse and wings were 2048, 32bit, DDS.unknown alpha.
I copied the original textures to a sub folder for safe keeping. Then I went thru all the textures, opening them in Photoshop making them 1024 (No Larger) and saving as DXT5, DDS. Original folder size was 90 mgs, My folder is 20 mgs. It now loads instantly.
I have a P4 3.2, 2 gigs ram, FSB is 800mhz, Card is AGP, eVGA 7600 GS with 512 k. My frames with the original tex's were .3 to about 6. Frames after the conversion runs about 12 to 15.
DXT5 DDS is much better. It flyes great. With the original tex's I couldn't fly it.
I got a long row to hoe converting all the tex's to DXT5.