sorry to hear about your misfortune I think with your cg set a bit aft (a little more nose heavy) than per the instructions was yhe right thing to do with this kit! as it does tend to snap easily set at mfg spec. But it sounds as if mabey your elev. rates were too high? This thing has a very sensitive elevator rate for it's size! -
Good luck on your rebuild hope it goes ok for ya!!

Question:
Does the elevator control surface really has to move only 15mm down and 15mm up according to the manual?? Seems too little!
The same with all the other control surfaces?
What settings do you use?

Crow,
Sorry to hear about your misfortune!
I am using the lower rates and find it performs very well I think 9mm for Ele and 5 for ailerons ???
On higher rates I found it too jittery and almost lost it.
I am goin to turn them down.

Thanks
I used more than 15 mm for elevator and it was quite well, but i`ll turn it down a bit to be sure not loosing it again.

Just made a total monkies ass of the checkered sticker on the cowl, and took all of the clear coat (and any other stickers on the cowl ) off as well.
I have nothing but admiration for anyone who got there's looking even half decent !

Anyone else had this plane tip stall on very slow landing (dead stick).
Happend me twice yesterday, it was pretty slow though as I caught it both times.

Got to get the ASP to idle better !

BTW
Has any one else found their model climbs like mad under full power?
I am finding it very hard to trim the elevator as one click up and it climbs and one click down has it drop.

It seems I'd have to leave it one way or the other and fly half power all the time or full power all the time !

Any tips to overcome this !

Thanks
Rob

well could be a pilot error

since the extra is known to have a stall on the elevator if pulled to hard

i have flown the extra for 6 months and you can bring her in very slowly with no problems , however pull to much on the elevator and she will go one her back like the amsterdam lady,s !!

If you are using a computer TX, you can adjust the amount of trim per click. Unfortunately mine requires constant change according to the amount of feul in the tank. A little bit of downthrust is required if it is only booming under power. Check your incidences and declage too.

I had the same problems with the checkered trim on the nose. Trying to get a stiff sheet of plastic round a compound curve, when its got a symmetrical pattern on it must be impossible!! Try cutting it into strips, one block wide first.

As for tip stalling, yes, when making a slow landing, in no wind, the right wing drops on mine just as it starts to flare. Lateral balancing may help a bit.

-David C.

test flew my new one yesterday 4/08/03 and what a machine it is with the SuperTigre 90 up front it climbs like the proverbial and aerobats to perfection, anything you can do this plane will do aswell, it knifedges either way and so solid, loops track straight and true, vertical is magic straight as a die my only concern was when landing after the second flight I tip stalled as I was about to touch down and I thought I was coming in pretty fast although another club member thought I had slowed down nicely anyway the right wing dropped and the tailwheel bracket broke but that was the only damage. The C of G was within 5mm of the instructions so I have put 1oz of lead in the cowl front just under the prop shaft opening and will try again. My Great Planes Extra had the same characteristic if the C.G. was taken a little rearwards so I presume it is a charicteristic of the Extra whatever brand of kit?
The sheer power of this machine with the SuperTigre is something to behold and I look forward to many flying hours with it but am reluctant as yet to try the Blender because of all the controversy about the tailplane failures so I am treating her gently at the moment and checking the tail after everyflight just to make sure everything is still in tact, will continue to post as and when developments occur. Just to confirm mine has the mods to the tailplane as regards the upgrade from Graupner i.e. strut supports. What a Machine!!

Thanks for the advice guy's,
I had a mix in to add a little down on full power but my tx only then allows both ail/elev dual rates on the same switch which I don't like.
I'll look into the downthrust and tx settings.

Slow landing in low wind is the exact scenario I encountered it in.
Normally it's windy here so it never happened before.

I've got one last chance with the check, so wish me luck !

Thx again,
Rob

Getting the check decals on are not so difficult if you observe the folowing.

Wet the cowl with saopy water (use dishwasher liquid). This prevents the decal from sticking while you work with it. Then using your wifes hairdryer (not your heat gun!!!!) heat the decal up until it is pliable and able to stretch (not so much that it runs under its own weight!!!) a bit. Apply the decal and mold to the contours. Do not worry about the wet cowl. As you work the decal the water will run out from under the decal as air would. Leave to dry and set ......hey presto easy.

Boy it sure does seem that this plane has an 'extra' (no pun intended) sensitive elevator for the elevators size! And I was thinking before I ever flew it that it was'nt quite big enough!!
Also it seems that everbody flying this bird is having better luck with it being a little nose heavy as opposed to what the instructions recomend!!
By the way my O.S. .91fx 'ROCKS' on this plane!

got mine up in the air a few days ago. After serious repairing i was suspicious that it might have some bad habbits. Quess what, it flew better than ever.
Just a little fall, amaizing. Only the `61 engine is bit too small. Mostly flew in full throttle.
CG is 100mm from leadin g edge, seems to fit perfect.
But there was one thing i can`t explain. I was turning back into wind, had strong right aileron when the plane made quick turn to left and then continued to right. I blame wind but i really don`t know what it was.
Landing is so smooth with a little throttle. Never had such a beautiful landings with my cub.

Crow

Good to hear you had a good flight crow!
Sounds like you might of had some kind of RF interferance though- you better check her over real well---dont want ya to lose her to some interference. Make sure you dont have metal to metal contact anywhere!I substituted my metal clevises on the tailbrace for nylon just to be safe

Hi Crow,

Have you fitted any interference suppressors on the aileron servo leads, as the long length can be a source of interference.

Sarah

nope. The local dealer didn`t say anything about this and i didn`t know to ask.
Have to check it out!

thanks
Crow

ok so with the supplied brace the extra flys good, btw about how much throw should the "extra" senstive elevator have? also do you think a brand new ASP .61 would be enough for the extra, btw the engine is about 10 years old and has never been used, also has more power than most .61s ive seen more power than any OS ive ever seen

Start out with the elev. set to mfg. specification low rates. and go from there till your comfortable! The ASP should do you just fine! My .91 is 'overkill'. Good luck to ya! I think you'll really like this bird she's awfully easy on the eye and get's lot's of compliments!!

my opinion is that this plane need a bit more than 61 engine. But ofcourse it depends what you going to with that plane. I set my control surfaces on high rate and it is perfect.

pic: plane vs bushes
Crow

Crow either you got a very heavy plane or you like 'tons' of extra power!! I have'nt even 'opened' up (flown at full power)my .91 fx yet- it's still fresh and not 'broke in'--But yet I find it to be VERY overpowered for this plane!! I can only imagine how muchh power it will have when I get her broke in! My plane came out at right at 7-lbs. So obviously a very good running .61 will do just fine!!
And for a person just starting out on this plane low rates is defanitly recommended!!! Just look at all the posts here on this thread alone with 'everyone' talking about the sensitivity on the elevator and with the tendancy of the plane to snap on high rates!
So anybody who has not flown this plane yet-'Take heed' you must start out on low rates and then go from there. Then after your comfortable with the attitude of this plane move up to high rates! Unless you have got wads of cash to be tossing around for unessesary crashes and repairs, (most of us dont) You should never start on high rates, Especially on first flight setup with a plane of this nature,(Or any plane for that matter!!) And given the tendancies and characteristics it has your much better off starting on low rates!!!--------'Just my opinion'

crow, my extra is going to be used in IMAC so a .61 will be perfect. nobody says i cant shove a saito 100GK in it

Hi Guys,

Which size of engine should I use if i want it to hover?

Thanks.

If your looking to hover you sound as if you need the 'extra' power a .91 would give you! This would give you plenty of pull out power! a .61 would prob. hover this, But just barely, With hardly any pull out power.

Well I just got done with the first flights. Nice

I only had to give 3 clicks of aleron trim and 2 of elevator trim. Not bad. It flys very stable and is alot of fun. It seemed to fly fairly fast but I have been flying most fun flys lately so that could be why.

I did have two problems. 1) Right side landing gear kept coming lose ( a little lock tight will fix it.) and 2) It could use some right thrust to have better up lines. It should be a good plane and last a long time. I will let you know how it flys in our clubs pattern contest in a few weeks. I hope I am ready be then.

Tim