Lionel GP7/GP9 morph

All Lionel GP9’s built on the Post War tooling were GP7’s with dynamic brake blisters.  

Jon  

Also GP20’s are GP7’s with a chopped nose...

Jon

And SD9’s were GP7’s with six wheel trucks...

Jon  

The Atlas GP7 had round rod rail stanchions v.s. flat bar.   The dynamic brake blister was all over the place, both GP7 and GP9 had/or did not have the dynamic brake blister, depending on the road. .  Roof fans also were a matter of time and upgrades.  Eventually less roof fans.

My Atlas model, several years ago.  The Pittsburgh and Shawmut GP7 was a second hand  Pennsy  unit.

Undecorated Atlas model had both, straight hood and brake blister.   Straight hood right in picture.

SD7/9 from Thirdrail.   Great Northern did not have the dynamic brake blister.  Flat bar handrail stanchions.

My GP60 can beat up your GP7.

(Ooppps, did I type that out loud?) 

Paul. 

MIKE CT-- would you happen to have a set of "torpedo tubes" I could buy from you?   John A

John A posted:

MIKE CT-- would you happen to have a set of "torpedo tubes" I could buy from you?   John A

Sorry, I do not have the roof mounted air tanks, "torpedo tubes"

OK, thanks anyway......john A

Lionel used the prototype at least for the GP7.  I have a book that has a couple of pictures of GP7s with horns on the upper side of the short hood close to the cab. No pictures of the other side to confirm the placement on the long hood.

Larry

 Originally posted by CALNNC:

It has four 36inch fans on top, when they should  be two 48's,

EMD Gp9's came in several Phases. The first two phases had the 5 fan setup with Twin 36" fan by Phase III the 48" Three fan came into play

http://trainiax.net/mephase-emdgp7-9.php

CALNNC posted:

 I also took the horns off the sides and relocated them to the top, that was something odd to me, that Lionel didn't put the horns on top.  What railroad had them on the side that Lionel thought side mount was universal?  Did Lionel take literary license on this model?  It contains most of the features of the GP7, but it has GP9 battery box louvers.  It has four 36inch fans on top, when they should  be two 48's, but there was railroad that did a GP9 rebuild where they installed the 4 small fans.  The side grill work on the radiator end is pure GP7.  I am not a purist for accuracy, but wondered if Lionel added a dynamic brake to their GP7 and called it a GP9.

Charlie in NC

Air horns were mounted where the railroad wanted them mounted, or they could have been moved by the owing railroads.

The GP7 demo unit had the air horns mounted on the sides of the hood:

An NP unit with a horn on the side and on the top of the short hood.  Note the steam locomotive bell the NP was apparently fond of:

Finally, 2 CB&Q units.  The 225 with the horn on the hood side and short hood:

and the 226 with 3-chime horns on top of the short hood:

Back in the day Lionel wasn't doing roadname specific detailing and yes, by adding the dynamic drake blister they called the GP7 a GP9.  48" fans became standard for late production GP9's and carried over on to the GP18's:

Rusty

EMD also built a few GP9s with low short hoods.

Larry