Piano technology

Yamaha C3 Technical Data

4 replies 6,075 views

Started by

petersteinway

Member

Member

Opening post by petersteinway

Posts
2
City
Foggia

Hello everyone!

Could you tell me where I can find the technical specifications for the action of the Yamaha C3 baby grand piano? I would be interested in knowing more deeply about the key descent weight... Thanks to everyone who wants to help me!

Reply 2 by Pianoaccordatore

Hi,

I do not know the technical specifications of that piano's action with precision; you can nonetheless stick to the universal measurements I am providing, while waiting for someone to answer you with more precision:

key dip 10 mm (approx.) - key weight 50 grams (approx.) - repetition weight 20 grams - hammer let-off 1.5 mm - hammer drop 1.5 mm below the let-off point - hammer-to-string distance 45 mm - hammer escapement 15 mm.

instead, I can give you the precise measurements of the Yamaha C3: length 186 cm - width 149 cm - height 101 cm - weight 320 kg

Moderator

Reply 3 by pianoexpert

Posts
3,876
City
rocca di papa

The specifications I have in my possession:

white key height from the keybed 65.5mm

black key height relative to white keys 12 mm

hammer-string distance 47.5mm

escapement from the string: bass 3mm, mid-treble 2mm

hammer drop 2mm

white key dip 10mm

black key dip 9.8

let-off distance 16-15mm

downweight 52 51 50 49 48

return weight not less than 20g

Log in to participate