Ah the classic VQPR Runway 15.
Keep in mind that this is an RNP AR “Cloud Break” procedure. Its not specifically stated in the Jeppesen charts, but it is stated in Bhutan’s AIP document with its accompanying navtech style charts that you can find via google. Regardless, this is NOT an approach that flies you on a nice 3 degree path towards a runway. Once you break through the clouds, you are supposed to maneuver visually.
I’m not exactly sure precisely how this actual approach is supposed to be flown after “cloud break”, as most of the youtube videos I’ve found in the past are based on a dated VOR approach that requires you to fly over the airport from the south, make a course reversal on the first valley to your left by turning towards it, then right hand tear drop descending turn (to ~9500’), aim for a temple in front of you, do a steep 30 degree bank right bank towards a small house (Mr. Smith’s House), and then line up with the runway with a tight left turn after just clearing the house.
Normally when I do this approach in the sim, if I can breakout the clouds and be visual by PR816, I can disconnect the autopilot, stay on the lateral path, pitch the nose to 0 degrees on the PFD, and maintain about a 2000 fpm descent (fully configured of course). This puts me on a nice profile that puts me at about the right height when flying towards the temple (reference some youtube videos on what the picture should look like). I don’t know if this is actually how they do it or not (they do literally fly towards a temple and make a hard bank for a house though!), but it certainly saves a lot of course reversals, which you would likely have to do after crossing overhead the field.
Now, if you are not visual by the FAF, then you can continue down on the published path. You can normally do a course reversal in one of the valleys after crossing the runway, but you will need to make another (like the one I described above) to line you back up with the temple for runway 15.