If you fly the Citation 560 V or the 560 Ultra, can you let me know what you true out at in cruise? For example, our 550's cruise at 345 kts at FL350, dropping down to 330 kts at FL390. We are looking to replace one of our C550's and I want to make sure that the V / Ultra break 400 kts - the performance figures I have found online are pretty varied (one source says 400 kts and one says 430 kts), so I'd like some real-world figures.
You will easily break 400 KTAS. My Ultra did 420 TAS up to FL 410. If you're not breaking 400 KTAS, in a V Ultra or better, you need to find out what is wrong with that aircraft. For flight planning, we always used 420 KTAS.