This is one airplane that for some reason I love the looks of it, maybe it's because it looks like an F-4 ( I love the F-4s too, yeah!!!, that may be it )soon I will start the build of my second one and I will share some of the bulding with the jet community( the first one is history, not by my doing ).

Pictures to come soon, ( not a build thread just pictures and some comments )

PS: This is my Hawk, any comments or sugestions are welcome, PLEASE do not turn this thread into any kind of political debate.


Thank you all and lets enjoy our hobbie.

Here are the first pictures, by now I have the Rudder servo installed ( 3421 JR ) and the vertical stab on the fuse as well as the elevators with the Servo ( single Hitec 333 oz ) in place with the push rods attached to the elevators, this single servo for the elevators has been tested before with excellent results, I tell you this ARFs are getting so much easy to build ( slide in and secure ) and the quallity is impruving by a ton.

This version of the Hawk has a lot more details than the prototype I build at first, airbrakes, 5 pices nose doors, tail hook and base. I do love the wing but you got to be carefull with this wing on the slow flight portion if it slows down to much you will get a nasty snap roll, so you have to keep that in maind on the final slow down to landing, you get the wing fences in the arf kit but only the Red Arrow use them not the T-45 so, put them a side.

Correct me if I'm wrong but I think CG is at 180mm. There is lots of room in this airplane so the set up of the trays will not be a problem at all.


PS: I know some of the pictures are no the best, I'll try to get sharper ones in the future.

On the prototype I noticed that I was going to need more flaps, so I made sure I had enough on this one when I glued them to the wings.

Here are pictures of the full size I found at the airshow in Mather air field Sacramento, Ca early this summer.

Here is some of my progress on the Hawk.

tray

Two more.

Nice job.

I'm just about ready to test fly mine this week.

I see your looking at the CoG at 180mm. I have been told that this should be at 125mm. You got me worried now []

I haven't managed to find anyone that has flown one of these yet under the Fei Bao name, so i'd love to have further info prior to re-kitting the model with incorrect settings for her??

Any help appreciated.

Cheers

Steve

As always, very clean lay out Carlos. Now lets fly it!! or lets just fly....

Hi Steve,

Your Hawk looks great!

I’ve flown my JL T-45 at 120 and 125 mm c of g and both positions were O.K.

As you are aware the two airframes are different so a direct comparison may have its pitfalls.

However, a c of g at 180 mm back does not “feel� correct.

120 mm back on the T-45 equates to a c of g at the wing root cord of 30.15%. I wouldn’t go much further back than 32% for first flight.

HTH,
Eric

Cheers Eric

Guess I'll have to be the first to try it then!!

Fingers crossed.

Steve

dont know who told you 120mm bute surely that is not correctly
CG is between 160-180MM Leading edge backwards
and a JL hawk is not a FB hawk!

The trouble is, no one seems to know what it should be.

Some say they are the same, some say they are not. JL, Skymaster, Fei Bao.

No-one knows the correct CoG or movements. Do I have to now remove the lead in the nose???

Can someone that has flown one of these please let us know what the correct settings are.

No matter how much looking I do everyones reports confict with everyone elses.

Does anyone know about this model before I go and trash it on the first flight.

BTW Sandor, this model came via you from Ali.

I would like fact as I'm not going to be the muppet to test it.

Cheers in advance

Steve

so why would i give you false imformation then?
Ale flew these hawks
so did i..
Ali liked it more backwards.
it is no conflict . the cg is correct
the JL is NOT the same aircraft as the SM or the FB one.
all old skymaster hawks where once build by FB.

Steve,

Does sandors 160 to 180 mm back equate to 30%-ish of ther root cord?


Eric

Total cord length=490mm.

Therefore 30% is 147mm.

I have now spoken to Ali, He remember the SM kit balencing on the front edge of the gear doors, which is approx 125mm. However he's not sure what the difference with the extra nose length would cause to the CoG.

Thanks for clearing that up. Are there any instructions for this model ie movements required to fly it??

I shall try to move the CoG back to 160mm

Seems more info is required when this kit is sold though.

Steve

I have moved the Batteries back again to give me 160mm CoG.

It doesn't feel right on the wheels when sat on the ground, it feels tail heavy.

BTW Ali hasn't flown this kit, he has flown the "OLD" Symaster kit, NOT this one with the longer nose.

Please could you ask one of YOUR customers who has flown this model to step in on this thread.

I WANT FACT.

I am getting to the stage where this model will NOT be flown as I cannot get the details I require. I do not feel this is a safe way to be, and will not risk a model where no-one seems to know the true details for it.

Either that or all the gear gets stripped out and returned with full refund via Ali to you.

Steve

Thanks to Ali who I have spoken to for putting my mind at rest. Even with an offer to come flying with me to test the model and CoG out.

It has been decided to try the test flight at 140mm CoG.

If it's too far forward then it's never going to be as bad a a too far rearward CoG.

That's also alot closer to the 30% of cord on the wing, so I feel much happier than that.

Sorry for taking over you thread CarsII.

I'll report how the flight has gone.

Steve

Steve, I'm sorry for not replying 'till now, but i have been working my &$$ for very long hours every day, so much that I haven't work on the Hawk for days but Thursday I'm on it all day.

I understand your delema, we have flown this very same model ( Fei Bao Hawk ), we flew it with a CG that gave us a nose heavy set up, on landing it didn't wanted to rotate, for that reason we made a long landing, past the end of the runway, the CG of is just infront of the main landing gear and yes, the model will want to seat in its tail with no fuel, some models are that way.

I will investigate a little more regarding the CG point, but Sandor has some good info there, we flew this Hawk before ( the first one ) at florida Jets, Ali was also there.

Good luck on your first flight, to bad I can't do it first, my work schedule is just off the scale for the moment. Oh, my Hawk will be ready for the Fresno jet meet in Sep.


One or two pictures.

Well as far as I can see, my FB Hawk is exactly the same as my original Skymaster Hawk, just a much better finish and a lot more work done. Its not the same as the later generation SM hawk and it is totally different from the Jet Legends model. And Sandor should know he sells them! I intend to use the original set up when I eventually get around to build mine.
You needs lots more elevator movement than looks right; mine was looking so excessive that I took off with rates in. Big mistake, very numb even with 30 degrees each way. You need to slow the flap travel right down or you can get excessive trim change in use. Don't apply them when going fast. 15 degrees is perfect for take off, and 45 is plenty for landing (or less if its windy).
John

HELLO HAWK FANS

Using jr 8711 on elevator,which type of servo arm would be best to use also for the rudder using jr 2431 metal or nylon also should it be taped or drilled for clevis i am thinking about the ones on dream works.

also those who have got there planes well on there way please post some pictures of componet panels , gear doors , elevator and rudder setup etc with out assembly manualls we all like to here what will work and what dos'nt.

Arden May

Here are some more pics.

the rudder servo is a 2431 metal gear with a standar plastic arm.

thanksfor the info.

what length is the servo arm on the elevator.........

Arden