Yukon0009

Ki-43! https://kerbalx.com/Yukon0009/ki-43

I suspect the way the lower stage was built was the reason for the explosion, I previously built it with 4 of the medium empty SRBs as structural support, and just about everything hung from those and the decoupler. Attatching everything from a central spine of fuel tanks seems to reduce the explosion count somewhat. Anyways, I felt a bit of a historical kick, and built an R-7 with the pretty, shiny fairings, and a V-2 that won't fly straight. And I uploaded my BF-109 to Kerbalx. By tweaking and adjusting the prop angle, I managed to push it up to 50 m/s over the previous 30 m/s in level flight. https://kerbalx.com/Yukon0009/BF-109-prop

Ranger-inspired lifting body that I want to use as an universal low-gravity lander (because it's cool.) Flies surprisingly well actually, it lands mostly without any trouble and managed to even do a partial lifting/vertical powered landing on Duna on the first try.

So the testing went fine, until it detonated about 7km up in the air. Back to the drawing board...

After a long long time, I've decided to finally get around building a Saturn V. Here's it so far:

Mini space shuttle. Probably could be done cleaner.

A prototype for a round-Kerbin flight propellor plane. Uses the structure of a WW1 style bomber, with 5 replaceable engines so they can be replaced en-route if they blow up.

I just realized that stock props are seriously fun to play around with. Can't get it above 35 m/s, but it's incredibly maneuverable and a total delight to fly (except land, it flips every time)

HL-10 added to OP

Finally, FINALLY built a reliable stock prop plane. After many hours of adjusting, this iteration didn't blow itself up mid-air, have it's propellor escape immediately, or simply not fly. Flies at around 50 m/s, perfectly reasonable for a low-powered biplane. (It weighs less than 2 tons!) Modified it and flew it to the Island airstrip. And then I had to pancake it onto the ground because I jettisoned the landing gear to make it go faster. Mission success!

Communications ship sails from KSC to support missions

Stock HL-10. Flies like a pig, yawing all over the place, tendency to go into an uncontrollable roll, glideslope of a brick. All in all, similar flight characteristics to a real lifting body. @Kronus_Aerospace Be sure to back up your craft files with a partcount of that size

Some things that I've been building

I got bored of the stock procedural fairings. Oh yes