Official Freewing 90mm Eurofighter Typhoon EDF Jet Thread

[xviper]

FYI, pre-order for this plane just opened at RCC, however, the shipping will be a killer, especially for US customers who get free shipping from Motion. However, you could get it by end of January. For me (Canada), the final price will be very close (using USPS).

[xviper]

So never bothering with the Gripen and only having a 64mm Rafale, working canards are a new thing to me.

I will be looking to use a Spektrum 8360T, how do i mix everything in and ensure the AS3X is working as needed?

I am confusing myself again, sorry guys. So if i were to use an AS3X RX via the control board, the AS3X would be on the canards as well then?

If you drop the use of the Air Brake, i guess we could use a 6 channel RX?

If you go with the 8360T, you won't run out of channels. As far as I can tell from reading the manuals for the plane and for the ESC, the canards are mixed via the board. It seems the airbrake and reverse are separate leads that must be plugged into the empty channels on the RX, if so desired. Here's what connections you will need on the RX ................................
Throttle, aileron, elevator, rudder, gear, airbrake, reverse.
What needs to be seen and experimented with is the possibility of combining the airbrake with the reverse on the same channel. IE, flip the switch for reverse and the motor reverses and the airbrake goes up. However, this may be undesirable. Eg. On the Eflite SU-30, FMS SU27, the dorsal airbrake is said to provide flight stability during the landing approach, so it's best to have it on a separate channel so it can be used prior to touchdown. Personally, I would not link the two (airbrake and reverse). So, if you decide to go with a Spektrum AS3X 6-ch RX, then you will have to eliminate one or the other.
If you have some experience with Spektrum smart RXs, you may ask ........................... "But reverse on Eflite planes don't need a unused port on the RX because the smart ESC doesn't have a separate lead to activate reverse, so why do I need another channel?" Well, that answer is hidden in the part about the "smart" ESC/smart RX. On Spektrum's low channel RXs, they still use a higher channel for reverse, typically ch-7 but that signal goes through a feedback signal on the throttle lead. It still uses ch-7 but there's just no port for it. Even their 4-ch smart RXs monitor and send signals thru channels 7 to 9. Those signals feed back via channel 1 (NOT SBus). If you use an 8 channel smart RX for reverse on a smart ESC, the channel you use for reverse (ch-7) cannot be occupied because it's an actual physical port. The HobbyWing reverse uses an actual lead. It can be considered a "dumb" ESC vs the Spektrum "smart" ones.
Insofar as using a gyro, be it a stand alone or a smart AS3X RX, that gyro acts via the leads going out of the RX or the gyro (stand alone gyros install immediately after the RX). Thus, any gyro controls go through those leads before the "board". The board does all the mixing and it is likely that if the elevons are gyro affected, the canards will also be affected in both AIL and ELE control.

PS. Don't let the part in the ESC manual for this plane confuse you. It says something about 0-50% does this and 50-100% does that. Just make sure you put it on a switch that goes from -100 to +100 (Spektrum) when you throw the switch. The other stuff about % is mostly for those using non-Spektrum where the actual numbers are different. They just want you to know that forward is the first 1/2 of the switch's throw and reverse is the second 1/2 of the switch's throw.

PPS. The Gripen may not be a good example as its canards are not mixed in a "board". I don't know about the 64mm Rafale. However, my 80mm Rafale does do canard mixing via a board but only for elevator response.

[Evan D]

in span 0.094

1/10.64?

[MAVFLIGHT75]

Looks really good...

MotionRC can you confirm if this is roughly 1/11 scale? If so, I will definitely get

[Evan D]

How are you seeing that a 4ch will do? Pg 10 of the manual says the blue box (MCBX) will do the mixing. The site says a minimum of 7. We don't know yet if this will have a new version of the MCB or the old MCBE. But none of the MCB's have mixing in them other than a retract sequencer.

So we need the normal 6...
throttle
Elevon
Elevon
Rudder
retracts
air brake

If the MCBe does the mixing why do we need 7? If not we have two canard servos doing pitch and roll so we need two channels, ?

Oh and reverse.... So 7 and the MCBe does the mixing.

[BenOzzy94]

It probably will do. The elevator and aileron out put from the RX will be fed I to the box and the box will just mix the canards to the elevons. So it'll probably all work as one fluid motion

[Necroscope]

I am confusing myself again, sorry guys. So if i were to use an AS3X RX via the control board, the AS3X would be on the canards as well then?

If you drop the use of the Air Brake, i guess we could use a 6 channel RX?

[Necroscope]

As far as I can see they are saying that you set up the radio as if it was just a normal 4 ch plane, the board does the mixing and I'd leave it at that. I will probably bypass the system myself for flight controls as I don't like roll on canards but seeing as I've started to skim into the unfathomable depths that is Open TX I should be able to custom mix things myself. (A lot more complicate than Spektrum, Much less restrictive when you learn how it works)

Thanks Ben, i need to read the manual i think. The more i learn, the more i start to see where the cost comes from.

[BenOzzy94]

So never bothering with the Gripen and only having a 64mm Rafale, working canards are a new thing to me.

I will be looking to use a Spektrum 8360T, how do i mix everything in and ensure the AS3X is working as needed?

As far as I can see they are saying that you set up the radio as if it was just a normal 4 ch plane, the board does the mixing and I'd leave it at that. I will probably bypass the system myself for flight controls as I don't like roll on canards but seeing as I've started to skim into the unfathomable depths that is Open TX I should be able to custom mix things myself. (A lot more complicate than Spektrum, Much less restrictive when you learn how it works)

[Necroscope]

So never bothering with the Gripen and only having a 64mm Rafale, working canards are a new thing to me.

I will be looking to use a Spektrum 8360T, how do i mix everything in and ensure the AS3X is working as needed?

[Alphonso]

Alphonso is not Alpha.

Thought I was

[Airguardian]

Ended up making a video to express my thoughts on the new FW EF

[Evan D]

Alphonso is not Alpha.

[50 Fly]

I think the straight struts will be fine on grass. It.s not a plane that will land hot. The F22 has straight struts. The A10 is much better with straight struts on grass. The nose is raked forward and the natural landing attitude of a delta will rake the mains forward at th point of touch down. If you wanted some trailers that look straight (so technically not actually trailing link) , the F4 90mm mains could possibly work well and have a good spring strength for a 4kg + model.

Understand your point, Alpha. Having heard you on a pod-cast, I have big respect for your drive to understand and satisfy the customer, so knowing that your experience with F-22 leads you here helps a lot, they are similar. As you say, I've heard of no one complaining about gear issues with the F-22. Personally, I've stayed with the higher-loaded jets for the challenge, but it's time for a "floater". Appreciate the reply, you are first-class, thanks for all you do to help insure a great "struggle-to-fun ratio " p.s. I had an A-10 for awhile (too tough to convert to turbine) but it was a *****cat to fly so I sold it. Wish I'd kept it now, would like to have tried the straight struts to learn. I saw you guys were offering straight struts, know you wouldn't do that if it didn't work well.

[Tom]

We will have both grass ops and pavement videos up in a week or two.

[Alphonso]

Yes, re-read and I get it now. Makes it doubly disappointing they chose a gear design best for pavement, that they didn't stay consistent with what has made so many jets successful from grass. I've been converting a number of EDF's to turbines, takes a lot of time so need to have it right. "It all starts with the gear"! Might be able to re-trofit A-10 mains to the Typhoon, if wheel wells will allow. Maybe someone from the factory could chime in? Alpha?

I think the straight struts will be fine on grass. It.s not a plane that will land hot. The F22 has straight struts. The A10 is much better with straight struts on grass. The nose is raked forward and the natural landing attitude of a delta will rake the mains forward at th point of touch down. If you wanted some trailers that look straight (so technically not actually trailing link) , the F4 90mm mains could possibly work well and have a good spring strength for a 4kg + model.

[Evan D]

6S. But I have my reasons. First the new 6S fan/ motor has my interest on how it'll do. It's a smaller motor but the same size as the HET 650-68 and has a pretty high kV for a 12b fan so I'm curious to see how it does. Second Tom said that the 6S will come with the HV Hobby Wing ESC so if I want to drop one of two Jet Fan/ HET 8S set up in I won't have to get a new ESC (though I do have a spare HW HV ESC in my drawer). I have both a 1500 and 1680 8S JF/ HET I can choose from and a bunch of batteries I'm using in my current 8S set ups, good to have choices.

If I was in the situation where I would fly either "as is" I'd probably get the 8S for the extra $50.

[TGoelzer]

Thanks Tom, ordering now.


Thanks again!

Did you go 6S or 8S?

I still trying to figure out which one to go with.

[Evan D]

Says preorder in the description so you are adding to cart the preorder.

I see the little green "in stock". The US site has it too.

I know it was cut and paste but the 8S version says "6 Cell 22.2V 5000-6000 mAh LiPo Battery (required)".

[Airguardian]

Tom, Jets appear as 'in stock' in the EU warehouse... that must certainly be a mistake, right?