Official Freewing 90mm F-16 V2 EDF Jet Thread

[xviper]

Real aircraft do NOT always translate well into foamie RC planes, so your statement about us knowing more than those companies is rude, obnoxious and completely IRRELEVANT and pointless. Once again, you've proven to me that there is absolutely no reason for us to have any interaction on any forum. Bye Bye.

[Airguardian]

They mostly do for the most part.
And it's kinda rich to see you calling me rude and obnoxious just after speaking of Jon the way you just did.

To each his own, I guess.

And no, it's absolutely NOT irrelevant as demonstrated by Jon and myself along many other people who have succesfully applied the same general lines of fullscale aircraft design criteria to our models setup, substantially improving our models performance in terms of flight envelope, controllability, flight efficiency, etc.

I certainly don't plan on leaving any of the forums I post in, but feel free to ignore my posts, if my words offend you that much.

[Dividebysandwich]

Well I can tell you the combination of the stock elevator neutral position being way too much down, along with the expo, caused me to always be on the steep end of the expo curve. Hence elevator input was extremely twitchy with sub-mm stick travel deciding on whether things were going up or down. This combined with the already sensitive ailerons at 40% expo to an uncontrollable airplane. There wasn't even time to reach for the trim. Putting the elevator neutral at the lower mold line was the most important fix. I can fly the jet at 40% expo but it's a bit sensitive, 65% is a bit too much for me. I'll probably go somewhere in the middle next.

The stock 110mm CG is okay for "scale flying", i.e. not cobra maneuvers, provided there's enough expo - at least for me. I'm sure there's people with finer motor control who can handle 40% expo at a rearward CG with no gyro but that's not me.

The hard landing on the second flight did cause the two wood spars to break and a small crack to form in the foam, but that was easily fixed and reinforced. Last few landings were super smooth, though I'm definitely still cautious with high AOAs.

[f4u ausie]

Firstly. It's nice to be nice. And. Divide. I've had similar trouble getting good at this one. Don't feel alone don't think U mentioned. R U 6 or8s. Last flight was 10mm back. 8s at1100 grams of 6000 HRB. Does not like slow in the turns. Landing my main concern..
I will get good. If it kills me. Or the plane. Have fun

[EDF-Jetpilot]

Oh, and another thing...

I personally think that recommending such nose heavy setups actually curtails pilot development, regardless of whether you want to fly smoothly, or radically aerobatic.

Extreme nose heavy planes are NOT well behaved and constantly fight pilot inputs. This doesn't make pilots learn faster, but rather becomes a drag to their development.

That's not to say that a gyro-run tail heavy setup is ideal for newbie pilots, it's obviously not, but there's a lot of leeway in between. Neutrally balanced or just slightly nose heavy planes are much more beginner friendly than excessively nose heavy models.

Even full scale airplanes offer forward CG limitations just as much as they give rearwards CG ranges. That's not just because, you know... ;)

I completely agree with you and 2Bros, because I also fly all my jets like you, and it's simply much more fun, especially flying fighter jets, since you can easily perform real-world maneuvers, which would otherwise be impossible. However, I think it's crucial that if you prefer a tail-heavy setup, you can correctly adjust the rates, expo, and, most importantly, the gyros, and understand how these factors interact! Most pilots (in my experience) can't properly adjust gyros and have limited experience with them – if you set a gyro incorrectly, your jet will crash, regardless of whether it has a nose-heavy or tail-heavy center of gravity! Beginners and recreational pilots usually don't enjoy flying with a tail-heavy center of gravity. I think xviper is thinking along these lines. But as I said, for me there is nothing better or more beautiful to fly than an F-16 or F-22 with a tail-heavy center of gravity, 70-80% expo with full servo travel on all control surfaces, and a perfectly tuned gyro setting – and that was already the case on my first flights!

[EDF-Jetpilot]

They mostly do for the most part.
And it's kinda rich to see you calling me rude and obnoxious just after speaking of Jon the way you just did.

To each his own, I guess.

And no, it's absolutely NOT irrelevant as demonstrated by Jon and myself along many other people who have succesfully applied the same general lines of fullscale aircraft design criteria to our models setup, substantially improving our models performance in terms of flight envelope, controllability, flight efficiency, etc.

I certainly don't plan on leaving any of the forums I post in, but feel free to ignore my posts, if my words offend you that much.

I actually fly pretty much like you; that's my flying style with EDF jets. I love it and have been following you and 2Bros on YouTube for a long time... your videos challenge me, especially 2Bros' setups, which I often copy and have fun with! But I also think that one should accept the opinions of less experienced pilots, because our flying style isn't the best or most comfortable for every pilot. The nicest compliments, however, are those we receive at the flying field, where fellow pilots are often amazed and congratulate us on our beautiful landings or maneuvers and our scale-like flying style... I fly quite smoothly, but with large control inputs in the appropriate maneuvers. I just wanted to briefly confirm what you're saying, but also ask that others accept those who don't share our opinion on flying styles. It was because of you that I even came up with the idea of a true-to-original, rear-heavy center of gravity - thank you very much.

[EDF-Jetpilot]

Well I can tell you the combination of the stock elevator neutral position being way too much down, along with the expo, caused me to always be on the steep end of the expo curve. Hence elevator input was extremely twitchy with sub-mm stick travel deciding on whether things were going up or down. This combined with the already sensitive ailerons at 40% expo to an uncontrollable airplane. There wasn't even time to reach for the trim. Putting the elevator neutral at the lower mold line was the most important fix. I can fly the jet at 40% expo but it's a bit sensitive, 65% is a bit too much for me. I'll probably go somewhere in the middle next.

The stock 110mm CG is okay for "scale flying", i.e. not cobra maneuvers, provided there's enough expo - at least for me. I'm sure there's people with finer motor control who can handle 40% expo at a rearward CG with no gyro but that's not me.

The hard landing on the second flight did cause the two wood spars to break and a small crack to form in the foam, but that was easily fixed and reinforced. Last few landings were super smooth, though I'm definitely still cautious with high AOAs.

474
I would advise every pilot against attempting to fly jets with a far-back center of gravity without a gyro; it's bound to go wrong. With a gyro, however, and properly calibrated, it's child's play, and a jet flies much more smoothly, realistically, true to scale, and easily than would be possible without one. You can essentially let the jet continue flying in any attitude without any corrective inputs; the aircraft won't deviate from its path, nearly even in wind – that's what flying is all about! ...That's fun and gives you security!!!

[EDF-Jetpilot]

Firstly. It's nice to be nice. And. Divide. I've had similar trouble getting good at this one. Don't feel alone don't think U mentioned. R U 6 or8s. Last flight was 10mm back. 8s at1100 grams of 6000 HRB. Does not like slow in the turns. Landing my main concern..
I will get good. If it kills me. Or the plane. Have fun

276
Exactly, the setup is very important, it has to be correct. After that, practice, practice, practice, and practice some more, then you'll soon master it and always land nice and softly! I know from my own experience and I wish you the best. But without being at the flying field 2-3 times a week, it will be difficult!