grammar

[bucc]

Is the 'h' as in sh, ch etc. known as an aspirant?

[shaneystar2]

It is a Spirant
Spirant.... a fricative consonant, as th, ch etc.

[aristotle]

The h itself isn't pronounced at all. When following another consonant it represents a new sound. These new sounds are different kinds of fricatives depending where and how they are formed.
The aspirate h in French is one that appears in the written form but is not pronounced but prevents a liaison with the following consonant e.g. Les Halles pronounced [lay al] not [layzal].
In English the aspirate h is pronounced as in history, Hampshire, hurricane, etc in RP.

[Peter Pedant]

Let me have a go ! my turn my turn!

The h in Fransh as in le hero but not l'heroine
is a glottal stop, the same sort as you get in
'Australia and Africa' - we English are not meant to say Orstraliarand Africa

or when chavs pronounce bottle as bo''le

and and ..... you can aspirate any letter in Hindi apparently.

bear in mind we do so in English - say spit to yourself and you will hear an 'h' between the t and the i

Ok this is not much of a help (or should that be an help?) but I could not resist chipping in my two penny worth.