A lot of good advice. I would say that some of the key things you will need to learn/watch out for include the following.
- Not over controlling as stated above. Small inputs, go for smooth until you have it all figured out.
- Avoiding a death spiral. Keep the nose up in the turns. The control input on a 3 channel model (R/E/T) with the rudder and elevator on the right stick (if you set yours up that way) will be small arc shaped movements. I.e. move the stick to the side to initiate the turn, down to keep the nose up, back to center to level out.
- Sorting out left and right. Visualize yourself in the cockpit. Once you get in that frame of mind there is no issue right is always right and left is always left.
- To get started quickly, hand launching is probably much easier than a rolling takeoff.
- Start with a big field with soft grass if possible and come in for shallow landings. Avoid tight spaces that require precise landings or "diving on the field" until you get it sorted out.
- I believe practice with an electric trainer, and possibly a simulator although I've never used one, will prepare you well. The only problem I see is as already pointed out, if the boost is high you may have trouble seeing the orientation but you can control that with motor selection so your first boosts are in around a few hundred feet. The speed shouldn't be too much of a problem assuming a hands off boost because it will likely just stall at apogee and tip down and start flying on its own.
I've heard others recommend running any RC vehicle, including a car, around at high speed to help sort out the left/right issues.
I taught myself to fly 10 years ago. It went something like this. I bought a Graupner Tipsy electric pusher kit as I was leaving for a week long vacation in the mountains with the family. I built it and proceeded to crash it and break it on the first attempt. Glued it back together and tried again. Repeated the cycle several times until I was able to actually fly a few circuits around the field. By this point the plane was getting pretty heavy and harder to fly. I got home and realized the plane was really underpowered for its current condition. I spent some time surfing RC groups and came across a nice little
Cub scratchbuild by Scott Alford (ScottA) in Australia (Warning: The thread is split into 3 linked threads that span over 2400 posts). I built one and really learned to fly on it. I've built over a dozen of that model in various scales for myself and others. I have built them with landing gear when I have a smooth surface for takeoff and landing, without gear for hand launch only conditions, with brushed motors and nickle cells, with brushless motors and lipos, with at least three different kinds of foam, finished naked, painted, covered in colored packing tape, etc. Everyone has been a good flyer, rugged, and easy to repair if needed. I highly recommend the scratch build route since you likely already have all of skill, glues, hobby knives, etc. from your rocket building.
I've built scale models, high perofmance models, fantasy designs, glassed, raw foam, with and without balsa, but I try to always have one of ScottA's cubs ready to fly. If I have a few minutes I can have a nice relaxing flight anytime on a small field.
Video
Mix of on board and hatcam video of relaxing low level flying.
I've put cameras on them and specced them out.
Video
Showing on board 4min video powered climb out to "high" and then cut motor and glide 4min to landing over interesting terrain.
I've owned a maybe a half dozen commercial kits or arfs and built several dozen scratch planes from RCgroups and my own plans. The scratchbuilds have all been better flyers, more rugged, easier to repair, and overall a much better experience. The one exception may be some EPP flying wings I bought from EdgeRC that were fantastic and practically indestructable; but not for beginners b/c of the speeds, roll rates, orientation challenges.
https://www.edgerc.com/Pocket-250.htm and a cool flight video
https://www.edgerc.com/J250movie.wmv and a cool video showing how tuff EPP wings are
https://www.edgerc.com/PCWcrashtestmed.wmv.