Official Freewing 90mm Eurofighter Typhoon EDF Jet Thread

[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 ;)

[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.

[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.

[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 ;)

[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.

[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 ;)

[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.

[Tonio62]

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?

[xviper]

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's on page 8 of the manual at the top right corner of the diagram.

(Got beat again.)

[Evan D]

Yes, some of the numbers printed on batteries are just not right... Again, all things being equal...

And curious about "The lipo recommended on the instructions weighs 760g".

[Evan D]

Dooh... I see what you are saying but not a specific battery. Thanks.

[Tonio62]

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.

I use the yowoo graphene lipos, brand of Hrb....
very good value !

[kallend]

Yes, some of the numbers printed on batteries are just not right....

It's Christmas, don't get me started.

[Shrop]

I use the yowoo graphene lipos, brand of Hrb....
very good value !

+1 on the Yowoo Grphenes, I'll be using 2x5000 4S 100C Yowoo's in my 8S version. Yowoo 4S and 6S batts have been my go to packs for the last 2 years for EDF's and they are available locally in Sydney too.
Looking forward to the Eurofighter Typhoon enormously, congrats to Freewing for listening to what the community wanted.

[Airguardian]

A video of the V2 Euro I hadn't posted yet...

[dbirds2]

how much weight do these centerburner lights add to the airframe.

[kallend]

how much weight do these centerburner lights add to the airframe.

I can't speak to his system, but my DIY design for single fan dual lamps for a bifurcated tailpipe adds 26g at the read end, and the controller is about 10g (depending on which Arduino you use). The controller can be located anywhere convenient.

[dbirds2]

I can't speak to his system, but my DIY design for single fan dual lamps for a bifurcated tailpipe adds 26g at the read end, and the controller is about 10g (depending on which Arduino you use). The controller can be located anywhere convenient.

thanks

[T-CAT]

I’m really happy to see Freewing going for a more scale look on this jet. I’ve been wanting to see that happen and more of it. There are quite a few details I’m truly appreciating on this jet which include:

- White painted struts
- An ESC that can be used for 6S or up to 8S
- Thrust Reverse functionality
- The overall scale landing gear stance and location, and gear doors
- The switch for the main landing gear doors
- Airbrake
- A 12-blade impeller (and improved power system overall), which I prefer the sound of over the 9-blade
- Easily accessible canard servos
- Plastic capped cockpit
- Wing screw design
- Canards appear to secure with machine screws into threaded metal rods.
- Landing gear lights on the mains

[kallend]

Clearly "read end" should be "rear end" in my previous post.