LDA APCH EVALUATION.

Narrative

I AM A 10000 PLUS HR CAPT WITH OVER 6000 HRS PIC IN TYPE. I FLY AN EMB-120 BRAZILIA; WHICH IS A 30 PAX TWIN TURBOPROP. IT WAS SEP/XX/95. TIME APPROX XX15 A.M. LCL. WE DEPARTED RNO FOR SFO. THE FOLLOWING ARE MY POSITIVE AND NEGATIVE COMMENTS. NEGATIVE -- WX WAS MARGINALLY GOOD ENOUGH FOR VISUAL APCHS. WX 1900 FT SCATTERED M21 BROKEN 20 MI VISIBILITY; WIND 230 DEGS AT 7 KTS. WE HAD THE BRIDGE AND COYOTE POINT IN SIGHT OVER FREMONT. WE HAD A WAKE ENCOUNTER (NOT DANGEROUS TO BELTED PAX/CREW) 6 PLUS MI IN TRAIL OF A B757 NEAR LOUEE ABOUT 1000 FT ABOVE THE MINIMUM ALT. WE CROSSED THE MISSED APCH POINT (6.2 DME) AT 2100 FT. THIS WAS JUST BREAKING OUT. WE WERE UNWILLING TO DSND FASTER DUE TO WAKE TURB CONCERNS. THERE WAS VERY VISIBLE WAKE TURB ON THE WATER WITH MINI WATER SPOUTS STILL AROUND. WE WERE NO MORE THAN 3600 FT (LESS THAN THE PRESCRIBED 3/4 MI) BEHIND THE PARALLEL TFC AS THEY CROSSED THE THRESHOLD. THIS WAS JUDGED BY THE LENGTH OF THE APCH LIGHTING SYS. WE STILL HAD A 58 MIN FLOW DELAY. WE STILL HAD HOLDING (ONE TURN). WE STILL HAD DELAY VECTORS. OUR 60 MIN FLT ACTUALLY BLOCKED 86 MINUTES. POSITIVE -- WE SAW OUR PARALLEL TFC ENTERING THE CLOUDS; SO WE KNEW WHERE TO LOOK BREAKING OUT. I FELT COMFORTABLE WITH THE PARALLEL TFC. CONCLUSIONS -- I WILL ACCEPT THE LDA/DME RWY 28R APCH IN THE FUTURE EXCEPT WHEN FOLLOWING A HVY B757. I DON'T THINK IT HELPED REDUCE THE DELAY OR INCREASE CAPACITY. I THINK THE APCH IS A BIG WASTE OF MONEY. THE TIMES IT CAN BE USED ARE EXTREMELY LIMITED AND IT DOESN'T SEEM TO HELP MUCH ANYWAY.