This is the 1st Jet plane i have ever had, very nice and lots of fun to fly. 1st flight was awesome, only needed a small amount of up trim to level it out at 3/4 throttle. I fly with a 3S 1300mah battery and get about 3 minutes with about 25% battery left. Landing are super easy on the grass without having to deal with wheels. Does have a pretty good approach speed when landing. Hand launching is easy once you get the hang of it. 1st time i had someone launch it for me because i wasn't sure what it was going to do. GPS speed of 86.4mph was verified with the use of a on board GPS. It is fast enough to start learning how the jets handle. Also it slows down pretty good for landings. Very happy i purchased it and Arrows Hobby did a great job of manufacturing it. You can't got wrong with this 50mm jet for your first jet experience.

This plane is so much fun that I just purchased another. We fly them in groups as much as 8 or 10 at a time racing. Has a decent glide. Inexpensive to operate.

This is a great trainer jet and it is a lot of fun to fly and is easy to keep it close to you and it will come alive on 4s 1300 lipo battery !!!!

Well let me tell you , this little guy packs a big punch in all category's , its quick, its agile, its VERY stable, it has a bold color scheme(great for orientation) and most of all it takes a beating!!! Here is a video where my dumb but did not check the center of gravity first and broke my nose on the plane. https://www.youtube.com/watch?v=Nx9VxxK698w FYI, a little glue and now you can not tell I broke it!!

Santa brought this airplane for my husband. He really wanted it. All the “cool” kids fly these at the flying field. He says it flies well and he was very excited to receive it. 

Great little jet. Once you get it into the air it is very versatile. It looks and sound great. You can fly slow and keep it in small spaces, or rev it up and do vertical corkscrews. It has a very good roll rate but is also very stable. There is absolutely no need for a gyro to help fly it. The operative phrase here is ‘once you get it into the air’. My success rate for hand launches is running around 25%. It is extremely squirrely right after launching and takes frantic split- second reactions to straighten it out, which takes about 1-2 seconds, after which your Viper is sailing smoothly or in the ground. So far it looks like the best technique it to launch it with a steep right bank so when it snap-rolls to the left you have a half a second longer to correct. It doesn't have enough thrust to fly out of your hand, so it requires a decent toss. My Admiral stability plus receiver didn’t help, in fact it would overcorrect and make things worse. The other critical issue is having the correct CG, which depends a lot on which battery you use. The recommended 1300 MAh goes all the way forward. An 1800 goes further back. Interestingly the 1300 gives a reasonable flight time because it is lighter you don’t have to use as much power.
One thing I did right was to Gorilla -Glue carbon-fiber rods into both sides of the fuselage, which so far has prevented worse damage. I highly recommend doing that for any long nose foam airplane, but I should have started them further back behind the leading edge.
I do recommend this airplane, especially if you have some tall (1 ft+) grass to launch it over, or you know the secret on how to launch these things. Otherwise, you may want to buy a couple extra fuselages to start.