Youth Saddle

Please help. My daughter is 7 years old and is very short for her age. She is having trouble making contact with the horse in the english saddle. Someone has mentioned we can get a saddle with a shorter flap length. What is a normal flap length? What would be considered a short length? She is about 47"

Thanks for your help

Here is a link to Courbette, they do not show the actual dimensions, but this is a scaled down version of the Adult Saddle they make and it fits some of our younger Riding Students very well.
Courbette Saddlery Company, Inc. Magic Junior

Stubben make a whole range of Youth saddles. Pretty much anything 15" seat size and smaller is a "youth" saddle and should have shorter flaps depending on the style of saddle,
Stbben Saddles

Bates also do a pony range of saddles in different style, ie dressage, AP, jumping etc also runs into their Wintec brand of saddle too.