F9F

[Hippie 64]

OK .... I checked the CG , I rechecked the Cg , ... Did I tell you checked the CG??? It took off went straight up about 12-15 feet !!!!!! There was no stopping it . I tried to push the nose over , no good . I would have thought there was a rope tied to its tail . Backed out of the thrust and straight into the turf.
Very fixable , popped of a wing at the glue joint . Crunched in the nose a little and the front gear came out . All is fixable .
I read thru Rktr saying his did the same a few times and others say was a beauty in the air . Not sure but I did add weight to the nose behind the cone to get it balanced . Any clues or advise ????????
[hr]
And lost my Camera off my Texan while flying it today !!!! Is there a full moon tonight ? If you tell me no I'm not going to believe you !!

[Grossman56]

RE: F9F

Hey Brian, that sucks!  Sounds like the Waco's first and second flight.  Your battery didn't shift or something like that?  To state the obvious, that CG seems to be way off,  maybe shift it forward to nose heavy a bit, then a gyro.  Thats what I'm going to end up doing with the Waco.   I had to add a fair amount of weight to the nose and she flys ok, but for the price of the Eagle A3L Gyro, what the heck!

Grossman56

[Rocketeer]

RE: F9F

Greetings Guys'

I don't know if you remember my posts and reviews on the F9F but, for me it too was a horrible experience!!!

I attempted to fly that bird three times (with repairs in between) and every time all it wanted to do was simulate a sounding rocket!!!
Once the wheels left the ground it would nose straight up for about 10 - 15 feet roll over and dive to terra firma!!

I had the battery up as far as it would go and even added almost 2 oz. of weight to the nose but nothing helped.
For the third flight attempt, I had three guy's at the field verify the CG as being on and even asked one of our best club pilots to take it up.
Exact same results!!! It would track bullet straight down the runway but, again as soon as the plane was airborn chaos ensued.
Nose up, tail down, roll over, hit ground!!

The plane itself is beautiful... the design leaves a bit to be desired.

Bill L.
in Okla.

[Hippie 64]

RE: F9F

I'll keep trying till I can't repair it anymore then that's it . Once it hits that point it will be a paper weight .
 I did add weight to the nose . Cg over five times I'm sure of . Lifted off very nice then straight towards the clouds . I know I'm no where  near as experienced as many out there . But I know the steps and I never skip one ever . I blame Gremlins 

[Rocketeer]

RE: F9F

Greetings H64,

That is exactly the point to which I was driven.
When I reached the point where I couldn't (maybe didn't want to) repair it any more, I salvaged the servos, ESC, Receiver and EDF and chunked the rest.

Best of luck, I'm looking forward to you conquering this beast!!!


Clear Skies

Bill L.
in OKla.

[Loneflier]

RE: F9F

I hate to hear that you guys have had such trouble with the Panther. It is one of the two EDFs that I have, and fly regularly and love it. Wish you were closer, and I'd let you fly this one. At the least, we could compare them to see if there is something off. Since this was my first EDF, if I had had the problems you guys are dealing with, I might have written off EDFs, and stuck with prop planes, but it really is a good flying plane.

[Hippie 64]

RE: F9F

That's really nice of you thanks . Do you have the landing gear in yours ? Maybe it's causing some of the problem . Seems as if where I read great flier it's a no gear and belly landing ! 

[Loneflier]

RE: F9F

No, I never did add the gear to mine. I just hand launch with about 3/4 throttle and she flies off pretty nicely. I did have to add a lot of expo to the ailerons at first, since it was really touchy. Finally ended up with only about 60% throw on the ailerons with 35% expo and now she flies smooth. I am flying with a 1500mAH battery shoved all the way forward, with CG at 1.25" back from the leading edge measured right at where the yellow meets the gray on the wing. Hope this helps!

[Rocketeer]

RE: F9F

Greetings Loneflier,

One of the reasons I purchased the F9F was all of the positive reviews and video reports I researched first.
I do believe this plane is a good flier and a worthy EDF (a have flown multiple EDFs in my hangar) but for some reason mine simply did not want to cooperate.
I did have the landing gear on mine. One would think that the nose servo would only add to the tendency for the plane to be nose heavy and not extremely tail heavy.

I think if this plane goes on sale this holiday season I might purchase another one and try again.

Clear Skies

Bill L.
in Okla. 

[Loneflier]

RE: F9F

Thanks Rocketeer,

I am currently building my next EDF, it is the red FW MIG 15. I am hoping it will fly as well as the F9F, but still have a fair amount of work to finish before she will be able to fly. Speaking of flying, I took off this whole week hoping for some calm days to get some flying in, but so far, it appears Mother Nature has other ideas. Rained all day yesterday, and today the winds are 20+mph, with gusts near 30! Just a bit much for me to attempt flying anything. Took a 4 mile walk this morning, at least it is warmer here, low 60's today, and will work some more on my Mig, and probably do some reading. I wish the Black Friday sales would start early though, I am anxiously awaiting them in the hopes of perhaps getting that ME-262! :-)

Have a good day!

Rich 

[Rocketeer]

RE: F9F

Greetings Loneflier,

It sounds as though we are experiencing identical weather patterns.
We received 5 inches of rain on Saturday to be followed by sunshine extreme winds on Sunday.
Our school is out after Tuesday classes so I too am hopeful that the weather will cooperate and allow for some urgently needed fly time!!
For thatI would truely be thankful.

Best of luck,

Bill L.
in Okla.

[Hippie 64]

RE: F9F

Here is the ugly fact !!!!! http://vimeo.com/112757917    I barly gave it any up with very low rates . Also as soon as I say the climb start I tried nosing it over .
[hr]
Loneflier sounds like you live in my area , upstate SC .

[Grossman56]

RE: F9F

OHHHHH, thats nasty!!  Thats pretty much what the Waco did to me on the first flight!
Don't know whether it will help or not, but I checked all the control throws and the elevator was way too much, so I reduced it and it helped quite a bit.  I wonder if its possible that the EDF isn't sitting right??
Just guessing, as I'm not familiar with EDF's but anything to help a buddy

Grossman56

[Loneflier]

RE: F9F

Greetings All,

Well, the weather finally broke here and today was just gorgeous this morning for some flying. Sunny, winds at 1-2mph at most, and for November, pretty warm, in the upper 40s. So, I gathered my new Mig 15, along with the new FZ FW-190, my Art Tech Pitts Special, and the new HH UMX B-17 and went flying! First off was the B-17. I hand launched it, and immediately it started climbing. It required a lot of down elevator trim, but once that was dialed in, it flew very nicely. Not fast at all, but pretty scale looking, and has a nice sound with those four tiny props going. I flew it twice with the 1S 250mAH batteries and got about 5 minutes worth of flight. It will loop, but doesn't look scale doing it. Nice, slow flybys are what this one is about.

Next up with the Pitts Special. I've flown this one several times and really like it. It will fly slow and stable, but at full throttle will scoot along nicely too. Very aerobatic, and just plain fun to fly. Easy to land as well. Just comes in at a slow speed, and just before it touches down, gently flair with some up, and she settles right in on the grass with no tip overs.

Next was the maiden flight for my FZ FW-190. I have read a lot of negatives concerning the landing gear being weak. I had no problems with take off. She lifted right off the grass and a bit of bobbling while I got it fully trimmed out. She does fly more stable with the gear up. Once trimmed, I was surprised how easily she flew. Very stable at slow speed, but plenty of power for high speed runs. Rolls are smooth, loops can be huge if you want, hammerhead stalls are easy, just a blast to fly, and looks great in the air. I made a couple of slow passes with gear and flaps on the first position, and she really comes in nice and slow. When I did land it, it was very gentle, and a short rollout, but one of the legs did fold up. No damage, so I increased servo throw on it, and took her up again. This time I really let her go, and was doing low, fast passes, loops, inverted flight, and really enjoying it. Landing on the second flight, I came into a slight, maybe 2mph breeze with no flaps, and again managed a pretty gentle touch down with no bounces. She rolled out and came to a stop with no gear issues! I will have to keep an eye on that, but otherwise, this FZ 190 is definitely a keeper!

Finally, it was the MIG's turn. I had watched videos of how to handlaunch this one, checked and rechecked all control surfaces, CG, etc, and gave it a good toss and nearly full throttle. Well, I understand your pain Rocketeer and H64!! She started climbing and turning almost uncontrollably. I cut power and basically managed to pancake it in on the belly. No damage, so I tried again, and again, nearly straight up and didn't have much time to correct before down she came. This time, it managed to knock a wing loose from the epoxy at the fuselage, and also knocked the battery tray down. Guess repairs will be effected, and we'll try again. I might let it scoot along the grass and see if I can do a ROG takeoff next time. 

So, mostly good news with the exception of the MIG. Sorry for the long post, but back down here in my den, recharging batteries, and hoping to go do it again this afternoon!

Rich 

[Rocketeer]

RE: F9F

Greetings H64,

Holy Crap!!! Talk about De Ja Vu!!!

That is exactly what my F9F did no matter what!!!

Drove me crazy!!!!

Thanks for the proof. Now I don't feel like it was me.....

Hang in there,

Bill L.
in OKla.

[Hippie 64]

RE: F9F

Really hate to hear that Loneflier . I don't mean anything by this but I'm glad to hear that these planes seem to be having something weird with them . I know by any means I'm not the heavily experienced pilot that I hope to be but my reflexes are fast and accurate . I did all I could to push that nose over , when I saw there was no hope I cut thrust to avoid as much damage as I could .
I have years of experience with cars , gas n electric 20 plus . my reflexes and not thinking to do the right thing and now to save something are usually accurate   . I almost have the F9F repaired and contemplating removing the gear to see what happens .
Rktr I've decided on the Freewing 1120mm Focke Wulf . The quality between Dynam and Freewing has no comparison , two different levels so that's the way I'm going .   
Sorry for the rant guess I'm still trying to convince myself of what caused the flub

[Loneflier]

RE: F9F

H64-No offense taken at all. I am still scratching my head trying to figure what I did wrong, or what might be wrong with the MIG. I do think once I get the damage repaired, I will add some "down elevator" to the neutral position. Maybe that will help. Like both you and Rocketeer, if it keeps on crashing, I may well just scrap it, and save the EDF, servos, receiver, etc.

I was really leaning towards that ME-262 if it is on a good Black Friday sale, but not so sure now. These EDFs are different I guess.

I think you are making a good choice with the Freewing FW-190. Good looking plane! Let us know your impressions of it when you build and fly it.

Rich

[Rocketeer]

RE: F9F

Greetings H64,

I agree, that I'll be looking forward to your take on the Freewing 190.
They make such awesome products, I know you'll be plaeasd.

Clear Skies


Bill L.
in Okla.

[Hippie 64]

RE: F9F

Ok I put more weight in the nose and got it up . Not pretty looked like a minute long roller coaster. Got it down on its wheels . Gonna add a little more weight to the nose and try again Sunday. 




Bryan 

[Rocketeer]

RE: F9F

Greetings H64,

Man, that plane is a beast!!!

How much weight have you added so Far?
I know I had almost 2oz. in the nose and it just laughed at me.......

Bill L.
in OKla.