Official Freewing 80mm Avanti S Sport Jet Thread

[T-CAT]

Hi thanks for the reply i fly all my other edf 80mm jets with no gyro including the avanti and there fine, sounds like i need the battery a bit further back which would explain the up trim i needed although it balances nice on my fingers with 105mm CG as stated! Also i have allirons 80%, elevator 100% so might need to bring them down more so its not so twitchy, 30 expo all round! It was horrendous to fly something wasn't right can't see how a nose heavy plane would wobble about like that though? I might try it with a 4000mAh see if thats any better. I centred all servos before putting control rods on i didn't need any role trim just up which i think was due to being nose heavy.

Chances are good that it is likely not your CG (I've flown it at 105mm at although it needed elevator up-trim, and was a bit on the nose heavy side for my likiny, it certainly wasn't twitchy) or your expo just by judging from your explanation.

It sounds like it could simply be that your throws are too aggressive, mostly on the ailerons. The Avanti is very responsive in roll, which could be causing the feeling that you describe as the twitchyness. It isn't all that pitch sensitive in my experience, although that is subjective. The rudder is also responsive, so make sure that is within reason as well. If you haven't already, you may want to set up dual or triple rates for all surfaces and lower the throws a bit. That way, if you find the low rates that you choose is not responsive enough, you can switch to higher throws quickly without worry.

[Trooper]

Hi thanks for the reply i fly all my other edf 80mm jets with no gyro including the avanti and there fine, sounds like i need the battery a bit further back which would explain the up trim i needed although it balances nice on my fingers with 105mm CG as stated! Also i have allirons 80%, elevator 100% so might need to bring them down more so its not so twitchy, 30 expo all round! It was horrendous to fly something wasn't right can't see how a nose heavy plane would wobble about like that though? I might try it with a 4000mAh see if thats any better. I centred all servos before putting control rods on i didn't need any role trim just up which i think was due to being nose heavy.

[Hugh Wiedman]

Ok need some help, i recently brought the new avanti s red high performance 9 blade inrunner along with the recommend 6000mAh admiral pro battery. My CG is 105mm from leading edge as stated in manual so battery is in line with the back of the wooden tray! On the maiden flight yesterday the plane was ridiculously twitchy and needed a lot if up trim, once i had it trimmed out the plane is wobbling about a lot and very difficult to fly so i landed asap!! Is it wrong CG causing this? Ive never maiden'd a jet and had issues like this im nervous about putting it in the air again. Anyone using the 6000mAh admiral pro and can help me out with battery placement?

I fly my red Avanti with either a RT 6250 or the Admiral 6000, both about the same weight although the RT is about 25 g lighter. I put the battery all the way back to about 5mm behind where the foam starts (cut a little out for it to fit) so that's quite a bit behind where you have it. Not sure why it's wobbling though, have you put in some expo? These jets are very responsive to the slightest stick movement so it could be that some expo would smooth it out. Not sure why it's wobbling though, this is a very stable air frame. What receiver are you using? Any gyro? I'm using an AR 636 with gains in the 40% range, so that could be why mine is so stable.

[Bgelok]

Allow me to post the response here



Before any of us speak of preferred CG and other aspects, can you provide more details? For example:

- What were your throws and expo set at?
- Do you have a gyro active?
- Are all your control surfaces perfectly aligned, and do all center well and provide deflection equally?
- Are you absolutely sure your CG is currently is at 105mm, and how are you measuring it? Don't judge your CG by mimicking placement of the battery upon pictures found online. It sounds obvious, but many people unfortunately do that.

[Trooper]

Well that was helpful

[T-CAT]

Ok need some help, i recently brought the new avanti s red high performance 9 blade inrunner along with the recommend 6000mAh admiral pro battery. My CG is 105mm from leading edge as stated in manual so battery is in line with the back of the wooden tray! On the maiden flight yesterday the plane was ridiculously twitchy and needed a lot if up trim, once i had it trimmed out the plane is wobbling about a lot and very difficult to fly so i landed asap!! Is it wrong CG causing this? Ive never maiden'd a jet and had issues like this im nervous about putting it in the air again. Anyone using the 6000mAh admiral pro and can help me out with battery placement?

You received a response on the RCg forums .

[Trooper]

Ok need some help, i recently brought the new avanti s red high performance 9 blade inrunner along with the recommend 6000mAh admiral pro battery. My CG is 105mm from leading edge as stated in manual so battery is in line with the back of the wooden tray! On the maiden flight yesterday the plane was ridiculously twitchy and needed a lot if up trim, once i had it trimmed out the plane is wobbling about a lot and very difficult to fly so i landed asap!! Is it wrong CG causing this? Ive never maiden'd a jet and had issues like this im nervous about putting it in the air again. Anyone using the 6000mAh admiral pro and can help me out with battery placement?

[Trooper]

Ok need some help, i recently brought the new avanti s red high performance 9 blade inrunner along with the recommend 6000mAh admiral pro battery. My CG is 105mm from leading edge as stated in manual so battery is in line with the back of the wooden tray! On the maiden flight yesterday the plane was ridiculously twitchy and needed a lot if up trim, once i had it trimmed out the plane is wobbling about a lot and very difficult to fly so i landed asap!! Is it wrong CG causing this? Ive never maiden'd a jet and had issues like this im nervous about putting it in the air again. Anyone using the 6000mAh admiral pro and can help me out with battery placement?

[Gringotuerto]

Chilly Bear I have two Avanti jets that are the same except one has the fences (painted black) and one does not. I personally do not like them because it seems at the same slow speed in a tight turn the one with the fences will stall and nose down and the one without will not. But then again, I am not a good jet pilot.

There has been debate about whether wing fences are better or not. Here's something new I hadn't thought of - one of my main retracts didn't come down last weekend, and I landed on one main and the nosewheel. The wing fence skated along the ground and I ended up with no damage. Without the wing fence it would have been the aileron linkage dragging on the ground. So it also serves as backup main gear :)

[Mach9]

Chilly Bear I have two Avanti jets that are the same except one has the fences (painted black) and one does not. I personally do not like them because it seems at the same slow speed in a tight turn the one with the fences will stall and nose down and the one without will not. But then again, I am not a good jet pilot.

[Mach9]

Eagleone622 Since you fly turbine models, you will find the Avanti a piece of cake. Personally I add tape to the hinge lines. They rip even with the nylon hinges. Watch the servo horn screws. They are metal to metal and I have not found any of them to have threadlock and sometimes they don't even tighten them. A real pain. Tug on the servos. Freewing does not remove the paint before gluing and rely on the paint bond to the foam for them to stay in. I have found they use two types of glue. One is a white glue that seems to be silicone and is nearly useless. The other is a clear glue like what comes with the model and holds well. Do not set your flaps to full throw. I am starting to believe that is what is causing the mysterious flap sticking down problem by causing the servo to stall. Having any delay makes it worse by not having as much sudden power. Kinda like getting a run at a hill or trying to drive up it slow and stalling.

[Mach9]

I have not been able to log in since HobbySquawk updated their web site a few weeks ago. I have sent 3 messages with no reply to any of them. While I was typing this, it was erased and then came back in a few seconds. I tried to recover my password (Which I did not need to do.) and received "Invalid server response. Please try again." and then "Image verification unsuccessful due to incorrect reCAPTCHA parameters. Contact the admin." and then "You have not entered an email address that we recognize. Please try again or contact the administrator." Now, I was not doing anything and the page refreshed on it's own and I was suddenly logged in. Since I was back in, I verified my email address was exactly as I had thought and typed. There is something bad wrong somewhere.

[Gringotuerto]

OK so I just ordered the Avanti in the Yellow PNP , and I am wondering if there is anything I need to know about this plane? I have plenty of turbine experience and have been flying R/C for 34 years so I know what I m doing but just want to know if there is anything to know about this model.
Looks pretty stable and a breeze to fly. This is going to be my private field sport EDF. I've already had the A-10 and that was a great Freewing plane so I am expecting this to be just as good. Am I right??

It is much easier than the A-10...it can really slow down to a crawl for landing. I've never seen a plane with such a huge difference between maximum and minimum speed. Various people have various advice, but some common comments in this thread are:

1. The aileron throws in the manual are way too high for many people's liking. Make sure you at least start with low rates, and work you way up cautiously. About 60%. This is the only area where arguably the Avanti can be harder to control than the A-10. The A-10 has a large span and rolls fairly slowly.

2. Many people seem to prefer the CG slightly rearward of the CG recommended in the manual. This is typical of Flightline/Freewing planes. They give you a conservative starting point.

3. Probably the most popular mod for the Avanti is a 3D-printed nosewheel brace. I don't have one installed, but many folks do. I guess it also depends on your field. You can find many designs by Google search, here is one example:

https://www.thingiverse.com/thing:2553111

People sell these on e-bay, so you don't need a printer to get one.

This is probably the most popular plane I've ever seen at our club, and for good reason.

[Eagleone622]

OK so I just ordered the Avanti in the Yellow PNP , and I am wondering if there is anything I need to know about this plane? I have plenty of turbine experience and have been flying R/C for 34 years so I know what I m doing but just want to know if there is anything to know about this model.
Looks pretty stable and a breeze to fly. This is going to be my private field sport EDF. I've already had the A-10 and that was a great Freewing plane so I am expecting this to be just as good. Am I right??

[Ks.jetflyer]

I have the original yellow one, 3 yrs. old. Came with 1850kv outrunner. Still happy with performance and sound.

[Hugh Wiedman]

They are 80mm, but they do offer (or have offered in the past) two different motor/fan combos, a 12-blade 1857kv and a 9-blade 1920kv.

I just check MRC website, and both red and yellow versions of Avanti PNP now say "NEW! 9 Blade factory balanced EDF combined with a powerful brushless 3658-1920kV inrunner motor". I'm pretty sure that as recently as a few weeks ago the yellow one had the 12-blade 1857kv, but it seems now they both come with the 9-blade. If I'm understanding the website correctly, you can't get the 12-blade anymore unless you order without the motor, and then separately order the 12-blade motor/fan (which I still see offered separately).

Seems they've changed this fan several times. I remember when I first got the Red one when it came out, it came with a 9 blade 3658-1857 Kv Inrunner, which is what I have. The yellow at the time had a 12 blade, but can't remember if it was an outrunner (which I think it was) or inrunner. So now both have the 9 blade 3658-1920 Kv inrunner. That must turn this thing into a "rocket". The EDF I have has more than enough speed for me though, rarely am I at full throttle, except for take-off, and even then it doesn't need it!

[Gringotuerto]

I have the original release avanti. Must say best flying jet on the market. One of our club members just ordered a red one. Confused, the listing in one place says 90mm 9blade, another place 80mm 9 blade and also says 80mm12 blade. He called MRC, rep said it's 90mm 9 blade. I find that hard to believe. Anyone know if they upped to a 90mm.

They are 80mm, but they do offer (or have offered in the past) two different motor/fan combos, a 12-blade 1857kv and a 9-blade 1920kv.

I just check MRC website, and both red and yellow versions of Avanti PNP now say "NEW! 9 Blade factory balanced EDF combined with a powerful brushless 3658-1920kV inrunner motor". I'm pretty sure that as recently as a few weeks ago the yellow one had the 12-blade 1857kv, but it seems now they both come with the 9-blade. If I'm understanding the website correctly, you can't get the 12-blade anymore unless you order without the motor, and then separately order the 12-blade motor/fan (which I still see offered separately).

[Ks.jetflyer]

They are 80mm. The only 90mm avanti i know of is the Sebart

That's my thinking also.

[Hemidoo]

I have the original release avanti. Must say best flying jet on the market. One of our club members just ordered a red one. Confused, the listing in one place says 90mm 9blade, another place 80mm 9 blade and also says 80mm12 blade. He called MRC, rep said it's 90mm 9 blade. I find that hard to believe. Anyone know if they upped to a 90mm.

I'm sure Motion like other businesses that are mega busy are struggling to keep up .

[Bgelok]

They are 80mm. The only 90mm avanti i know of is the Sebart