My newest Den. friedericksianum, the one still under the lanai eaves, opened its blossoms the day before yesterday.
They are now fully open and looking good.
I have searched everywhere and can find no one that says they are fragrant.
My experience is that if no one says they are fragrant, then they are not.
And quite often, even if someone says that they are, they may not be.
Yet, when I bury my nose in the flowers, I detect a faint fragrance, similar to a D.nobile and many of its hybrids.
It is not strong but gets stronger by mid day as the day warms up.
This is my newest one, still in its pot, that is in flower.
You can see the buds, still developing on each of the bare canes, that will bloom later.
The longest cane, the one with leaves, is about 3' long.
This is the one that I tree mounted about 9 months or more ago.
It put out a single blossom about 6 weeks ago that lasted around 4 weeks.
You can see the buds developing along portions of the bare canes.
The longest cane is between 3' an 4' in length.
You might also note the Nobile hybrid keikis just to the right of the Den. fred.
The flowers are about 2-1/4" across the upper petals and have a waxy type of consistency but are not heavy and thick petaled.
The flower are long lasting.
If I remember right, 3 to 6 weeks is reported for them.
EDIT:
A Den. chrysotoxum, a Phalaenopsis and a couple of Vanda hybrids are queuing up to be next, maybe more that don't come to mind right now.