Ratier prop blade

AndreRan · Jun 22, 2020

Dear All, Let me first introduce myself! My name is Andre and I am 53 years old, living in The Netherlands and an aviation ethousiast and photographer. . I am looking for your expert opinion. I do have a prop, and I think it is a Ratier prop blade. But I hope you can tell me what engine / aircraft is has been on. Was is this blade worth ? many, many thanks.

waroff · Jun 23, 2020

it seems turn clockwise seen from pilot. The french fighters single engine had propeller which turn counterclockwise. D520, MS406 had propeller 3,05 and 3,10m diameter.
May be this blade come from twin engine as Potez or Breguet -2,55m diameter?

elbmc1969 · Aug 4, 2020

waroff said:
it seems turn clockwise seen from pilot. The french fighters single engine had propeller which turn counterclockwise. D520, MS406 had propeller 3,05 and 3,10m diameter.
May be this blade come from twin engine as Potez or Breguet -2,55m diameter?

I don't think it could be from a Po63 of this type Potez 637

waroff · Aug 7, 2020

Potez 63-11 could be fitted with Ratier 1527 & 1528 or Gnome et Rhone 2190 & 2191 propeller

elbmc1969 · Aug 7, 2020

waroff said:
Potez 63-11 could be fitted with Ratier 1527 & 1528 or Gnome et Rhone 2190 & 2191 propeller

Thanks for that info! Do you know if they were constant speed, two-position, or???

waroff · Aug 7, 2020

Ratier electric control, adjust rpm by key inc/decrease and selector on manual then switch to automatic for CSpeed
there was not a prop control on the quadrant but one switch and one key(for each prop) on instrument panel.
G&R pneumatic manual control only

elbmc1969 · Aug 7, 2020

waroff said:
Ratier electric control, adjust rpm by key inc/decrease and selector on manual then switch to automatic for CSpeed
there was not a prop control on the quadrant but one switch and one key(for each prop) on instrument panel.
G&R pneumatic manual control only

What's a "key" in this context? A control that you twist to different settings? That would be a rotary switch: Rotary switch - Wikipedia

BTW, I've seen your work on Drix's site. Some of the links to the pictures died, unfortunately. I did track down some of your modelling work as well.

waroff · Aug 8, 2020

Ratier prop control (D520....)

elbmc1969 · Aug 8, 2020

waroff said:
Ratier prop control (D520....)

Thanks for that! I probably have a decent view somewhere ...

Ratier prop blade

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