Can anyone tell me the appx length of a Stanley #40 plane iron?

[Phillip West]

Hi, making a new plane iron..I know the iron is 1 1/4" wide (originally 1/8" thick but am going thicker than that)..Does anyone happen to know the appx length? Also if Im not mistaken its a 3" radius, correct? Thanks

[Kyle DuPont]

It looks like the Hock irons are 7" long for that plane. Lie-Nielsen lists their radius at 3", which is probably original spec.

[Barry Mabery]

I have 3 of different vintages - 2 are nearly straight and one is greater (less curve) than 3" radius. I guess it depends on how aggressive a cut you like or want to take.
Barry

[Phillip West]

Thanks guys, already have the blade made and ground just need to heat treat it now..My wife has the kiln tied up doing her thing but Ill get it done tomorrow..Ill post a pic of it when its done.