Here are the pictures showing the canvas covers. You can also see some of the lower fuselage, and the Port side flap in this photo.
The main wheel / tires are still spinning as the landing gear is retracted. As they come into contact with the canvas liner, they leave rubber marks. You can see the tire marks very good here. There's also a small wooden "chafing block" inside the landing gear well to stop the tire from spinning once the gear is fully retracted.
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1. Contact with the spinning tire has left marks on the canvas.
Here’s what the tail wheel canvas looks like. It appears to be dark OD green color. You can also see the inner details / rivet patterns, and retraction linkage for the tail wheel door in this picture.
Here are some pictures of the landing gear.
I have an identical P-40 model on the work bench and I hope that it is completed and photographed by December 7th. I am building a model of the Collings plane as a Pearl Harbor tribute model.
Airfix has molded in some tiny tubes that are located on the lower center of the fuselage, in between the main landing gear. These are the drains and should be there. Here’s a picture showing them on the real plane.
They are located just aft of the radiator and oil cooler, just behind the cowling flaps.
Here’s a picture of another P-40 that is on my building wish list. Someday I will definitely make a model of this plane and I’ll cover it with Bare Metal Foil. Every since I have seen a picture of it I have wanted a miniature version in the display case.
Here is a very good description based with a lot of color pictures from the AVG planes. Rato Marczak has done a great job with his analysis. If you follow this link, it might help you with your color choices. I also have a Federal Standards color chip book, and will gladly offer you assistance if needed.
http://www.ratomodeling.com.br/articles/AVG_cammo/
I know that the FS system wasn't around during WW2, but using it along with the information that Rato has posted, it just might get you in the ballpark.
Hope this helps you my friend. Stay safe and avoid the Delta.