The reason I asked what kit you had was to see what tail and cowling you were working with. G-10’s are like Baskin Robbins ice cream, they come in 31 flavors[:P]. If you had one that required a new tail, extensive cowling work this would not be worth it. There are kits out there some with obscure details on them. Second not knowing your level of skill I didn’t want to say, yah just scribe some new lines and add a all this detail. To some this is no big deal, to others this might be above there skill level. It just so happens this mold has what you want already on it.
This is what I did. I scaned 2 copies of the 3 view line drawing of the G-10 and K-4. One set had numbers that I will used to explain what to do. the second set is clear so you can get a clear view of what your working with. These drawing should be big enough for you to blow up and print out. This will allow to ue them at the bench.




- Tail wheel gear door. Most were shut at all times. You can either fill and rescribe doors in closed postion. option 2 cut away and make clam shell doors from styrene. Don’t forget to use the extended tail wheel, as G-10 kits may give you both.
2.Radio equiptment hatch, fill and rescribe. Note: Changed shape, moved foward and slightly higher on frame 4.
- Master compass hatch, fiil and remove not on K-4.
4A and 4B. fuel filler port and MW50 filler port. Move foward to frame 1. Like G-10 view 4B keep staggered on K-4.
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DF loop. relocate to rear part of frame 2.
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Ailerons. if fabric detail is present remove. K-4 wing all steel, Dural and some wood. no frabic used. Slants now steel sheet.
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Tire relief buldges. G-10 kits usually give you choice of small and large. The K-4 only had t he large.
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Vent on bottom wing. sand and fill. not present on K-4.
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oxygen filler hatch. part of K-4 new wing set up. oxygen Bottles moved to right wing. Scribe small hatch just like one next to it.
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tires. K-4 had the largest tires used on the 109 series 660x190. Most G-10 kits give you these tires. they have raised tread pattern.
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main wheel gear doors. Another feature of the new K-4 wing. About half of operational K-4’s had them removed. You going to have to build one that has them removed of scratch build you own.
Fuel filler #7. I messed upon ther numbering. but this filler port stays there.[D)]
Other details. The K-4 wing was completely new and one thing that sticks out even if the gear doors are removed is the mechanical gear indcators. The K-4 did away with the insterment panel indcators and went with ones like those seen on FW190’s. I think this is a important detail as this is often missed by modelers.
The cockpit like I said I would just use a resin detail set for this.
Prop. Some G-10 kits give you 2 props. The K-4 would of used the broad cord VDM 12159. This will be the fatter one of the two.
Yes the antenna line does pass through the DF loop. On most examples no tension spring was used on the tail.

A better view of the doors.

The gear indcator is the red thing on the high part of the wing just inside the relief buldge.
These changes should be enough to fool most anyone looking that it’s a K-4. There are some very small minor details that really don’t matter when it comes to a 1/48 scale model. My advice is do what you feel comfortable doing and do it to your liking. There is no completely accurate model so don’t worry about it. Some people accuracy is very high on the list. others as long as it look like it there OK with it.
If something not clear let me know. Sometimes I don’t translate well on the net. Good luck building the ultimate variant of the 109.
K-4 Best of the Breed!
My favorite 109[:D]