Open Key Flute Glissando Range

Hello I am writing a piece for 4 flutes. Each flute moves up in glissando patterns to create microcanons. 

I was speaking to my tutor about this the other day and he said that simply going from a low not to a high note via glissando on flute is limited because of the fingerings. 

My original plan was going from a low F to a high D sharp. with all the tonal and microtonal qualities in between. What is problematic about this? If I am starting from an F what is the highest note I can reach via glissando? 

Thanks

No Low F to D Sharp is impossible you have even embouchure changing... take a look at the flute

The open holes are D,E,F - G,A, so in 1st and 2nd 8vas you have only glisses between those two zones, (I mark in bold) like this:

1st 8va  C,C#,D,D#,E,F,F#,G,G#,A,A#,B,C

2nd 8va C,C#,D,D#,E,F,F#,G,G#,A,A#,B,C

3rd 8va ? I don't play flute :P

This comes a bit late, but seeing that nobody has replied, I shall.

Always consult an experienced flautist when writing weird stuff. (Well, normal stuff, too, because what may seem normal to you may be incredibly awkward on flute.) In particular, the instrumentalist you have in mind. (Just because an extended technique exists doesn't mean everyone can play it.) Don't expect your average flautist - not even professionals - to know much.

On a normal flute (Böhm-Lot system), the glissandi ranges are as follows:

D1~Bb1

D2~F3

The lower limits of each range can be pushed slightly using embouchure changes, but tone deteriorates rapidly.

The upper limit of the latter range can be extended a little, say to F#3 or G#3, but it's extremely tricky.

The subranges F1~G1 and F2~G2 have very poor response; do not write anything beyond mezzo-piano.

The range Bb2~D3 is not commonly known, and transitioning between the three subranges of the latter range is not smooth at slow tempi.

The subrange A1~Bb1 And A2~Bb2 is not smooth, but it is viable as an illusion when approached from a lower note.

Some special flute alterations can expand these ranges, but don't expect to traverse between them.

Glissandi can be executed on the flute headjoint sans body; consult your local flautist for the range. Do note that removing and reassembling the headjoint is a major technical disruption.

Hope this helps.

KZ