Official Freewing 90mm Eurofighter Typhoon EDF Jet Thread

[xviper]

Where are they saying to put the 21g cylindrical weight that came with the plane?

For those that bought theirs from Raymond... Lucky you, the decals suck. Honestly, if this happens again I'm passing on buying the plane.

I didn't see anything in the manual about where to put that slug. Should I need to use it, I may bore out a tunnel in the tail piece and put it in there. Another option would be to use strips of lead and put them in the trough under the rudder.
I hate applying decals, particularly large ones on surfaces with contours, lumps and bumps. Although it wouldn't necessarily deter me from buying, I wish Motion did NOT listen to the few who were crying about "PLEASE SELL THIS PLANE WITH THE DECALS OFF"! It's easier to paint over decals or strip them off than it is to apply them (IMO). Of the thousands of these things they sell, how many actually get a custom livery? 5%? 10%? 20%

[Evan D]

Mine is assembled to the point weight and balance and set up is done.

Mods. Well, not many. I did pull the canards off the mixing board and went to dedicated channels on the receiver. I did this to allow more freedom in mixing as I like a very full throw for air brakes. I also moved the pushrods to the outer holes on the canard servos. I also have separated steering and have a Assan steering gyro.

Balance... Expecting a very nose heavy plane I bored a hole in the tail cone to allow TWO of the 21g slugs. One that cam e with this plane in the parts bag and a second I had removed from another plane. I then assembled the plane and I tried a 5200 that weighs 650g and a 5000 that weighs 575g. With the two slugs I am at 25mm aft of the marks with the 5200 and 30mm aft with the 5000. Good enough for me. I'm not one of the people that go cutting edge tail heavier and I don't use gyros as they do to help with their rearward CGs.

I still have more decals to add and a spritz of lacquer to put over them and some final wire management, but otherwise she is done.

[Radar-Guy]

But where does the spring go?

It’s for the nose gear strut, with a different characteristic. According to Freewing (a friend asked for me ) the softer one is installed. Yes, the fitted one feels very stiff already compared to their previous models.

[Evan D]

:) I answered you on RCG, FW sometimes adds a softer nose strut spring in the bag.

[kallend]

Where are they saying to put the 21g cylindrical weight that came with the plane?

For those that bought theirs from Raymond... Lucky you, the decals suck. Honestly, if this happens again I'm passing on buying the plane.

I don't thnk "they" say anything but Radar-Guy's tail piece has an accommodation for it.

But where does the spring go?

[Evan D]

Where are they saying to put the 21g cylindrical weight that came with the plane?

For those that bought theirs from Raymond... Lucky you, the decals suck. Honestly, if this happens again I'm passing on buying the plane.

[TonyTaff]

Yea My 8s Typhoon arrived today and Yes Motion sent me the correct model. I had already taken delivery of m2 4S 6000 Mah batteries as recommended by Motion, they are the dame part number as Motion recommended. However There is no way these will fit in the battery bay. They push out the sides new, I dont want to think what will happen when they start to swell

[xviper]

I'm not of the impression that "problem" is the correct word to use in this particular subject. So far, only a very few private owners on the east side of the Atlantic have flown this plane. Besides them, we've seen Wes (MotionRC), Arthur-RC and those guys in SE Asia (FNRC videos) fly this plane (and they don't tell us much). The rest of us in N. America who have this plane, are in various degrees of "winter" and can't fly.
I see it as an individual's ability to balance this plane, given the battery they plan to use, taking into consideration how they wish to fly it. Any plane that comes with CG marks or CG measurements printed in the manual, has always been "recommended" balance points. As Wes has already demonstrated, the plane will fly fine at the recommended marks, but he even stated in one of his first videos, that balancing it several mm in front of the marks made for a better flying plane when wind penetration is required. In another video, Wes also said that for slow, "high alpha" flight, being aft of the CG marks is preferred. Arthur-RC has done flights with and without armament and he found that without armament, the plane was severely nose heavy (for his tastes). With armament attached, he found that the balance point was more to his liking 20mm aft of the CG marks, PLUS some weight in the tail. He found this to be the best for high alpha flight.
Then there was some discussion as to the need to relocate the control board so that the battery could go rearward even more to get it to balance for the desired flight characteristics. Mine is 8S and that's a lot of battery weight with my chosen MAH. My twin 4S, 6000mah, HV, Coddar LiPos shoved right back to the rear lip balances the plane, with ordinance, about 10mm aft of the marks. When I use twin 4S, 5300mah, HV, SMC LiPos, I will want to move one of them more aft to balance it the way I might like it to fly. Hard to say because I haven't flown it yet, just playing with it in the basement, driving it back and forth on the floor.
Arthur used a 4000mah, 6s, CNHL in his flights. These weigh ~700g. A 5000mah, 6s,CNHL will weigh well over 800g. A 6000mah, 6s, HV Coddar weighs only 665g. It then becomes a matter of what type of 5000mah battery you choose to use.
We've seen this plane fly fine with a forward CG and we've seen it fly fine with an aft CG. It all depends on what you want to do with the plane and how you wish to fly it. A "problem"? I don't think it's a problem as such.

[DCORSAIR]

I guess I missed it too, what is the CG problem?. If I purchase one, I also will be using 6S 5000mah pk.

[Apriliamgt]

So what have I missed in regards to the cg problem? I was hoping to us a 6s 5000?

[Apriliamgt]

What have missed ? In regards to the cg problem ? I was looking to fly on 6s 5000?

[TGoelzer]

Mine just got delivered! Whoo Hoo!

[kallend]

Thanks. With all the hubbabaloo about balance I'm going to do the tail cones last.

Radar-Guy's tailpiece is my first choice for placing tailweight, since it can hold a lot, can easily be opened up for changes, and is better supported by the structure than a glued-on nozzle.

[kallend]

Here are some "heavy" nozzles. Printed with 65% infill mine came out to 47g empty each, and each can hold more than 50g of lead.

https://www.thingiverse.com/thing:5899318

Be aware that

(1) it does require cutting the foam stub onto which the stock nozzle is glued. A cutting guide is provided in the file.

(2) the duct does not go down the center of the nozzle, but is offset at the front by some 2mm to align with the duct in the foam which is not centered in the stub. This means that you have to make sure the orientation is correct or the nozzle duct and the foam duct will not be aligned..

(3) It fits my EF perfectly. This does not mean it will fit yours perfectly.

(4) The exit diameter is 55mm, same as the stock nozzle. This amounts to 90% FSA as best I can tell.

[Evan D]

Thanks. With all the hubbabaloo about balance I'm going to do the tail cones last.

[kallend]

Your nozzles will add 200g with the lead so that should be pretty good.

When you put them on thingyverse can you give us a link please?

Will do.

The exhaust duct does not go down the center of the tailpipe, but is offset by about 2.5 degrees. I'm just printing uo some test nozzles to make sure everything lines up properly. Should be done by midday Friday.

[Evan D]

Your nozzles will add 200g with the lead so that should be pretty good.

When you put them on thingyverse can you give us a link please?

As a rough estimate it will take about 70g of weight in the tail to move the CG back by 10mm.

[xviper]

Well the 8s gets you chaff and flare dispensers, actual missiles that shoot off, opening canopy, and a whole bunch more…

no, it’s just a hotter fan…

I got the 8S for the free gumball dispenser. When the center burner comes on, a jawbreaker pops out the back end.

[kallend]

As a rough estimate it will take about 70g of weight in the tail to move the CG back by 10mm.

[Evan D]

Well the 8s gets you chaff and flare dispensers, actual missiles that shoot off, opening canopy, and a whole bunch more…

no, it’s just a hotter fan…