UK2 JX485 Consolidated CoronadoGR1 ex USN 7192 PB2Y-3B Helensburgh.jpg

Very interesting, especially as the 3-view drawing shows a mix of 3 and
4-blade props. I wonder why this would be?

Regards

Syke

Syke wrote in newsse4u.18783$xL5.844
@fx31.am4:

Very interesting, especially as the 3-view drawing shows a mix of 3 and
4-blade props. I wonder why this would be?

Regards

Syke

The two inner engines were fitted with four-bladed reversible pitch
propellers; the outer engines had standard three-bladed feathering props

REF:
Bridgeman, Leonard. "The Consolidated Vultee Model 29 Coronado". Jane's
Fighting Aircraft of World War II. London: Studio, 1946. ISBN 1-85170-493-0

On Sun, 06 Oct 2013 09:39:21 -0500, John Szalay john.szalayatatt.net
wrote:

Syke wrote in newsse4u.18783$xL5.844
:

Very interesting, especially as the 3-view drawing shows a mix of 3 and
4-blade props. I wonder why this would be?

Regards

Syke

The two inner engines were fitted with four-bladed reversible pitch
propellers; the outer engines had standard three-bladed feathering props

REF:
Bridgeman, Leonard. "The Consolidated Vultee Model 29 Coronado". Jane's
Fighting Aircraft of World War II. London: Studio, 1946. ISBN 1-85170-493-0


Do you know why? Was this for enhanced maneuverability on water?

Lab Lover wrote in
:

On Sun, 06 Oct 2013 09:39:21 -0500, John Szalay john.szalayatatt.net
wrote:

Syke wrote in newsse4u.18783$xL5.844
:

Very interesting, especially as the 3-view drawing shows a mix of 3
and 4-blade props. I wonder why this would be?

Regards

Syke

The two inner engines were fitted with four-bladed reversible pitch
propellers; the outer engines had standard three-bladed feathering
props

REF:
Bridgeman, Leonard. "The Consolidated Vultee Model 29 Coronado".
Jane's Fighting Aircraft of World War II. London: Studio, 1946. ISBN
1-85170-493-0


Do you know why? Was this for enhanced maneuverability on water?



reversible pitch , do make it easier to handle on the ground & water.

ever seen a plane back up ? watched C-130s do it and its impressive.

On Sun, 06 Oct 2013 11:41:57 -0500, John Szalay john.szalayatatt.net
wrote:

Lab Lover wrote in
:

On Sun, 06 Oct 2013 09:39:21 -0500, John Szalay john.szalayatatt.net
wrote:

Syke wrote in newsse4u.18783$xL5.844
:

Very interesting, especially as the 3-view drawing shows a mix of 3
and 4-blade props. I wonder why this would be?

Regards

Syke

The two inner engines were fitted with four-bladed reversible pitch
propellers; the outer engines had standard three-bladed feathering
props

REF:
Bridgeman, Leonard. "The Consolidated Vultee Model 29 Coronado".
Jane's Fighting Aircraft of World War II. London: Studio, 1946. ISBN
1-85170-493-0


Do you know why? Was this for enhanced maneuverability on water?



reversible pitch , do make it easier to handle on the ground & water.

ever seen a plane back up ? watched C-130s do it and its impressive.

Even more so with a C-17...

On 06/10/2013 17:41, John Szalay wrote:
Lab Lover wrote in
:

On Sun, 06 Oct 2013 09:39:21 -0500, John Szalay john.szalayatatt.net
wrote:

Syke wrote in newsse4u.18783$xL5.844
@fx31.am4:

Very interesting, especially as the 3-view drawing shows a mix of 3
and 4-blade props. I wonder why this would be?

Regards

Syke

The two inner engines were fitted with four-bladed reversible pitch
propellers; the outer engines had standard three-bladed feathering
props

REF:
Bridgeman, Leonard. "The Consolidated Vultee Model 29 Coronado".
Jane's Fighting Aircraft of World War II. London: Studio, 1946. ISBN
1-85170-493-0


Do you know why? Was this for enhanced maneuverability on water?



reversible pitch , do make it easier to handle on the ground & water.

ever seen a plane back up ? watched C-130s do it and its impressive.


The first aircraft I ever saw do this was a Blackburn Beverley, back in
the 50s.

--
Peter

On 07/10/2013 08:07, Ramsman wrote:


The first aircraft I ever saw do this was a Blackburn Beverley, back in
the 50s.


Ah, yes, the amazing Beverley.

When paratrooping from this one I noticed, when standing in the door
awaiting the "green on - GO" order, that the big wheels were going round!

;-)

Ri©ardo

--
Moving Things in Still Pictures!

On 10/6/2013 10:37 AM, Lab Lover wrote:
On Sun, 06 Oct 2013 09:39:21 -0500, John Szalayjohn.szalayatatt.net
wrote:

wrote in newsse4u.18783$xL5.844
@fx31.am4:

Very interesting, especially as the 3-view drawing shows a mix of 3 and
4-blade props. I wonder why this would be?

Regards

Syke

The two inner engines were fitted with four-bladed reversible pitch
propellers; the outer engines had standard three-bladed feathering props

REF:
Bridgeman, Leonard. "The Consolidated Vultee Model 29 Coronado". Jane's
Fighting Aircraft of World War II. London: Studio, 1946. ISBN 1-85170-493-0


Do you know why? Was this for enhanced maneuverability on water?


Just as a wild guess...

It may be that the outboard engines get shut down in flight?
Seaplanes need a LOT of power to get off the water.
But not that much for cruise.

On Sun, 06 Oct 2013 15:28:36 +0100, Syke
wrote:

Very interesting, especially as the 3-view drawing shows a mix of 3 and
4-blade props. I wonder why this would be?

Regards

Syke


As Szalay pointed out, the 4 bladed props were reversible pitch. I
believe this was done for maneuverability while taxiing.