Double letters

["Gabriel Landini" <G.Landini@xxxxxxxxxx>]

John Grove mentioned that the lack of double letters suggested 
him a "vowel-less" language.

Spanish does not have many "double" characters and one of them 
behaves very "voynich-like": the strong "r" sound.
When words start with "r" Iike Rio, the sound is strong, but in the 
middle of a word, the same sound is written "rr" like in "carro" (cart).
That leaves no words starting with the same sound as an internal 
"r".  No word ends in "rr" (or at least I don't remember any).
The other common one is double "l" like in lluvia (rain), but it can 
happen anywhere but no word ends in "ll" either.

Actually some dictionaries consider Ll as another letter after L.

Cheers,

Gabriel