Official Freewing 90mm Eurofighter Typhoon EDF Jet Thread

[xviper]

Of course if he uses less throttle he can improve flight time but all things being even a smaller capacity battery will give less flight time. Or he could just fly to a lower voltage per cell number. Interesting he has "4000mah graphene which weighs 640g". I'll use 5000's that weigh 575g or 5200's that weigh 645g.

If he's using HobbyKing Turnigy Graphenes, they are quite heavy for the mah size. I have several of them myself and I would say that his 4000's are more like 4500 to 4800 in other, non-Graphene brands. My 3000, 4s Graphenes have the same flight time as my Admiral 4000, 4s bats and weigh nearly the same. Both flown in the same plane (OV-10) in the same manner. Their Graphene Panthers are the next evolution in the Graphene series and they are even bigger and heavier for the same mah size. It's like buying a 20% to 30% bigger battery. By contrast, I find it intriguing that the HV bats from Coddar and even from SMC, are so much lighter for the given mah than "normal" LiPos, yet fly the same kind of duration. How do they pack so much more into so much less? The HV are the ones I plan on putting in this Eurofighter.

PS. I've stopped buying Turnigy Graphenes. They just aren't good value for the money and once mine got to about 3 years old, the balance lead faulted and no longer can be balanced charged. Since newer brands have come along like SMC, Coddar and CNHL and several others, HobbyKing Graphenes have taken a back seat to those others.

[Evan D]

The Motion web site recommends their 6000 Pro that weighs 910g. The manual pg8 says 5000 to 6000 greater to or equal to 35C. No specific battery. Where do you see 760g?

it is for the 6s version... Yes I agree, it is quite heavy... The lipo recommended on the instructions weighs 760g and allows you to respect the centering of the plan. So I said to myself that why not my 6s 4000 with a little more rear centering..... In addition the engine seems more economical (only a 120a esc against 130a usual on the brand's 90mm) . With my Gripen which consumes 125a at peak (fms 2000kv motor) I manage to fly 5 minutes on average with my 4000 graphene..... So, why not ;)

[Evan D]

Of course if he uses less throttle he can improve flight time but all things being even a smaller capacity battery will give less flight time. Or he could just fly to a lower voltage per cell number. Interesting he has "4000mah graphene which weighs 640g". I'll use 5000's that weigh 575g or 5200's that weigh 645g.

Maybe not, because being lighter will also require less thrust. Will depend a lot on his flight style.

I.e. going from 2x5Ah to 2x4Ah on my MiG-29 didn't change my flight times for the type of flight I was doing but the plane flew much better with two 4Ah because it was lighter loaded and T/W increased substantially.

[Tonio62]

Maybe not, because being lighter will also require less thrust. Will depend a lot on his flight style.

I.e. going from 2x5Ah to 2x4Ah on my MiG-29 didn't change my flight times for the type of flight I was doing but the plane flew much better with two 4Ah because it was lighter loaded and T/W increased substantially.

This is the right way Alejandro 🤘
All my jets are better with light lipos ;)

[Airguardian]

Maybe not, because being lighter will also require less thrust. Will depend a lot on his flight style.

I.e. going from 2x5Ah to 2x4Ah on my MiG-29 didn't change my flight times for the type of flight I was doing but the plane flew much better with two 4Ah because it was lighter loaded and T/W increased substantially.

[Evan D]

Older 90mm 6S peaked at 110-115A even though they came with a bigger Amp ESC. Let us know how you do with the 4000. Should fly okay, just a little shorter flights than a 5000.

[Tonio62]

Are you talking about the 8s version? If so, you’ll need 2 batteries. 2 X 4000mah,4S might get you 3 to 4 minutes, depending on how your fly.
If you’re talking about the 6S version, the recommended battery is 5000 to 6000mah, 6S. Also depending on how you fly, you might get 3 minutes (maybe less) on a 4000mah. These new EDFs seem to have more claimed static thrust, which to me, would indicate more energy needed. This is also NOT a light airplane. Furthermore, a typical 5000 to 6000 battery weighs in around 800g to over 900g. You may have some difficulty balancing it without some added weight.

it is for the 6s version... Yes I agree, it is quite heavy... The lipo recommended on the instructions weighs 760g and allows you to respect the centering of the plan. So I said to myself that why not my 6s 4000 with a little more rear centering..... In addition the engine seems more economical (only a 120a esc against 130a usual on the brand's 90mm) . With my Gripen which consumes 125a at peak (fms 2000kv motor) I manage to fly 5 minutes on average with my 4000 graphene..... So, why not ;)

[xviper]

I hope to be able to fly with my 4000mah graphene which weighs 640g (+60g of telemetry sensor). Without the armament I think I could glean some flight time ;)
For now I was only flying with 80mm jets, and will test before investing in 5000mah ....

Are you talking about the 8s version? If so, you’ll need 2 batteries. 2 X 4000mah,4S might get you 3 to 4 minutes, depending on how your fly.
If you’re talking about the 6S version, the recommended battery is 5000 to 6000mah, 6S. Also depending on how you fly, you might get 3 minutes (maybe less) on a 4000mah. These new EDFs seem to have more claimed static thrust, which to me, would indicate more energy needed. This is also NOT a light airplane. Furthermore, a typical 5000 to 6000 battery weighs in around 800g to over 900g. You may have some difficulty balancing it without some added weight.

[Tonio62]

I hope to be able to fly with my 4000mah graphene which weighs 640g (+60g of telemetry sensor). Without the armament I think I could glean some flight time ;)
For now I was only flying with 80mm jets, and will test before investing in 5000mah ....

[Quickstop]

well looking through their U-tube channel (even though I don't speak a work of their language )
seems they get very early access to a lot of new kit. didn't even know Freewing had developed a Centreburner system. looks very swanky with universal mounts much more streamlined than other solutions and you don't have to stick cable ties into the motor case. Also in the promo stuff for it looks like the display model is the new Eurofighter, makes me wonder were these developed in conjunction?

To me this looks like it was shot at Freewing and posted by FNRC, set is different as are the people

[kallend]

The Lightburner made those bifurcated Y-layout centerburners, I have one unit on my F-18 but Ran is no longer around, rest in peace.

Ran and Gooniac motivated me to design my DIY system.

I already have them designed for the V3 EF 6S unit. I don't make them though, I post the designs on Thingiverse for free download.

(Not directed specifically at you: if you don't have a 3D printer you are missing out on a lot.)

[Airguardian]

And there don't seem to be any good mounts for bifurcated duct twins with independently lighted tailpipes.

The Lightburner made those bifurcated Y-layout centerburners, I have one unit on my F-18 but Ran is no longer around, rest in peace.

the canards might be plugged into the board individually so that the likes of me and I imagine also Airguardian can plug them into the RX on their own so we can mix out the canards on roll. #scalepolice

Indeed I will!

Yes, I'm sure some will choose to not have roll on the canards... Not me.

You blasphemous heretic!

[xviper]

Note the control board is not the "blue box" MCBe.

I still marvel at these things. My first encounter with them is in the B-2 bomber. I was amazed that they did all the critical mixing in that device so that it makes it more "goof proof" for so many people to easily set up and fly these models. So far, the B2 has been working as intended, without some of the glitches we saw and still see in some of the "blue boxes". I'm hoping that these new control boards will be problem free. I don't mind mixing things myself, but to just plug a few leads into the RX and be done, is a game changer.

[Evan D]

Yes, they are separately plugged into the board. FW always, or just about always has some type of MCB, multi connection board, whether a blue box or a circuit board. They allow the simple use of a receiver set up as a simple aileron, elevator, rudd, etc program in your radio. They also have some type of ribbon cable output to simplify the wing connections.

In almost every case I bypass most if not all of the functions of these MCB's and plug each surface into it's own channel on a high channel count receiver. Usually I'll keep the MCB for lights and retracts. That way I can do the mixing I want. In the case of this I will probably duplicate my Gripens and do air brakes with the canards and have it mixed to the elevons so I can use them in flight, not just on the ground.

Here is a video of how I set up my F-22 with individual surfaces and using a 12ch receiver. IMG 1771 - YouTube

Here is my Gripen and the airbrakes. This was when I first flew it and since then I have increased my throws, especially my canard throws. FreeWing 80mm Gripen EDF setup - YouTube

Using the MCB in the Euro will allow people with a simple 7ch TX and RX to have an easy set up on a fairly complicated aircraft.

Yes, I'm sure some will choose to not have roll on the canards... Not me.

[BenOzzy94]

They did a pretty thorough job, looks to me like the canards might be plugged into the board individually so that the likes of me and I imagine also Airguardian can plug them into the RX on their own so we can mix out the canards on roll. #scalepolice

[kallend]

Centreburner system. looks very swanky with universal mounts much more streamlined than other solutions

I thought it rather poor in that regard. Gooniac's mounts are much more streamlined, as are the mounts from another contributor here. And there don't seem to be any good mounts for bifurcated duct twins with independently lighted tailpipes.

[Evan D]

They did an excellent job of showing both assembly and set up along with alignment and how to reverse the surface directions if needed for your radio. I like that the now have allen headed screws. Note the control board is not the "blue box" MCBe. Interesting that they don't score the parts to be glued or touch the parts then separate them before putting them together.

The center burner came out last month and even Tom from Motion has mentioned them in threads. They are available now at RCC.

[BenOzzy94]

WARNING: Avoid if you are averse to these.
Build video from FNRC. Can’t understand anything they say. Skip the first 2.5 minutes and the last 2 minutes. Not much talking in between. I saw a couple things that were interesting. Looks like the exhaust nozzles already have narrower inserts built in. Control surface demo ~2/3rds in. Shows what the switch does and airbrake function, reverse.

well looking through their U-tube channel (even though I don't speak a work of their language )
seems they get very early access to a lot of new kit. didn't even know Freewing had developed a Centreburner system. looks very swanky with universal mounts much more streamlined than other solutions and you don't have to stick cable ties into the motor case. Also in the promo stuff for it looks like the display model is the new Eurofighter, makes me wonder were these developed in conjunction?

[xviper]

WARNING: Avoid if you are averse to these.
Build video from FNRC. Can’t understand anything they say. Skip the first 2.5 minutes and the last 2 minutes. Not much talking in between. I saw a couple things that were interesting. Looks like the exhaust nozzles already have narrower inserts built in. Control surface demo ~2/3rds in. Shows what the switch does and airbrake function, reverse.

[xviper]

Raymond quoted $198.60 shipping to Chicago. I can wait until March and free shipping anyway, because the weather here will suck until then, and we're going scuba diving in the "Keys" for the next entire month.

Yes, that's what I'm paying in Canadian $$$ from RCC. When I order from Motion, my shipping is $137.00 US. However, when I buy from RCC, the price of the plane is a bit cheaper as it hasn't been shipped to N. America yet. In total, after US to CAN conversion, shipping all in, It's $1100.00 vs $970.00. As I say, for those who get free shipping from Motion, there is no advantage buying this from RCC. They've got to REALLY want this plane a few weeks early to pay the extra money. The added bonus for me to buy from RCC is that they allow me to buy in CAN $$, thereby foregoing the currency exchange charge from either PayPal (~2.5%) or my CC company.