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RE: Banana hobbie's new f18 - 12/31/2008 3:09 PM   
frisconick


 

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Pat,

Do your horizontal stabs feel as flexible as mine? With mine sitting on the landing gear, putting a finger under the tip of each stab and lifting, I think the stabs would break before the wheels would come off the ground. I'm thinking of routing a channel on the bottom of each stab and epoxying a small carbon fiber tube.

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RE: Banana hobbie's new f18 - 12/31/2008 4:17 PM   
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Wow, is Pete getting back to you guys through PM's or phone calls???.. I dont believe he posted just to say be patient, & didn't answer any concerns (especially MISSING RUDDERS & BATTERIES !!!). If he's getting back to you guys other ways, please post. I think a carbon fiber tube from root to tip in the horiz stabs & wings could never hurt, but lifting at the tips wouldn't be a good representation of stresses endured during flight. The lift would be distributed more evenly through out the airfoil. Just from his flight video, I planned on doing the CF tubes though.
Jay

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RE: Banana hobbie's new f18 - 12/31/2008 6:56 PM   
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mine flexes to. i flew mine yesturday but didnt use right battery and cg was way off. surfaces can flex to a degree. ever seen a 747 take off. thoses wings look like there going to brake but dont. they flex a few feet. airplanes not good ground vehicles. they become strong when there in there zone and thats flying. after live air speed is created the thrust will take alot of the weight off the stabs. but all in all if they were to break it would be on take off only and using a extreme amount of elevator throw....i thnk the most important thing on this plane is to have enough power and most NOT TAIL HEAVY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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RE: Banana hobbie's new f18 - 12/31/2008 9:18 PM   
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its nice but not a 10. it looks cool but if you look at it wrong it gets a nick or dent. my only thing was the retracts. i removed the stock junk servos and put in a hitec metel mico and a futaba metel micro so they both would go in same direction. i also removed the elevators servos and put in some hitecs i had. these stock servos are not much. this plane is best to be bought as plug and play no servos and no reciever. the speed controller looks top notch. it is a 70 amp not a 60amp which is even better. the engine sounds mean. and also has a 5 amp bec. the retracts are on a 3 way harness so you have to have all three adjusted just right which is difficult. the fron nose retract adjustment was not right. i think the easiest way maybe would have been y the mains togeather and the plug the nose in a aux channel and mix gear and aux. the problem with y harness is you cant adjust one servo at a time. and i think with 3 mechanical servos at least be able to adjust the nose buy itself. all in all the plane is nice looks cool but the servos i am not going to lie are junk. they are good for a small foamy. and know you cant take out of the box charge and fly. thats only on the 70mm version. there easy. i tell you this if i have problems with these retracts alot they will be epoxied and flown as a stiff leg.... just hope to get my battery next week.

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RE: Banana hobbie's new f18 - 1/1/2009 6:17 PM   
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hello got a favor of ya. if posible so i can have sound mind. could you put a little mark of somesort on your fuse and take a picture and send to my email or forum of the exact spot where your cg is. i just want to compare. another thing where are you planning on putting the carbon tubs in the stabs. are you doing the middle or the ends. does sound like good idea. do you think just putting on the length of leading edge would do or the middle. if you could do this i would be appreciated.. thanks patrose16@yahoo.com

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RE: Banana hobbie's new f18 - 1/1/2009 9:54 PM   
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Will shoot some more pictures later today and post.

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RE: Banana hobbie's new f18 - 1/2/2009 12:22 AM   
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sorry to bug you again. when you post what balancer are you using for fullymax battery. i havent got mine yet but want to know which plug adapter works. i ordered a flightpower 18.5 3700. i wonder if they will be compatable.. pat

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RE: Banana hobbie's new f18 - 1/3/2009 12:32 AM   
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Here are some images of the CF strips I epoxied into the stabs and wings. They are .177 wide by .057 thick. I used a dremel tool with a drill bit to route out the slots. Much stiffer now. In one of the images on their web site, it looked like lead weights were wraped arount the front of the battery. I brightened up the image and there appears to be a considerable amount of weight there. This makes me feel better since I had to add 1.75 ozs to the nose cone to make it balance at 100mm. The three marks in the image are at 95, 100, and 105mm back.

Pete, I've called probably a dozen times, but the support line is always busy and no one ever answers the sales line. I've asked for your help here and sent you a PM, but no response. Hope this isn't what you mean by "Professional Lifetime Tech Support only at Banana Hobby". A few comments would be of great help.

Thanks all,
Nick


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RE: Banana hobbie's new f18 - 1/3/2009 12:54 AM   
ricardinho


 

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i here you on that. seems like when we really need the help we cant get it. i just hope they make right with my battery. i did recieve my flight power battery today. wow what a differance in power. you are not going to believe the ass this thing has. i did the same as you on the stabs earlier today. big differance. they will still flex alittle which is normal on any plane. so i believe in inchs on the cg is 4 or 4.1 inchs and back from leading edge correct. tomorrow is maiden 2 i know it will be right now. i put 2 1/2 onces on mine on the nose just incase. so are you flying yours tomorrow. if so let me know. i will also let you know... see ya

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RE: Banana hobbie's new f18 - 1/3/2009 3:18 AM   
frisconick


 

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Good luck tomorrow. Let us know how it goes. Forecast is for strong winds here tomorrow, so probably no flight yet.

Nick


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RE: Banana hobbie's new f18 - 1/3/2009 3:50 AM   
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Hey Pete / Andy Chen -

What happened to the Carbon rods that were supposed to be in the wings? ....not to mention the claimed Rudders.... What gives?

quote:

ORIGINAL: ricardinho

mine flexes to. i flew mine yesturday but didnt use right battery and cg was way off. surfaces can flex to a degree. ever seen a 747 take off. thoses wings look like there going to brake but dont. they flex a few feet. airplanes not good ground vehicles. they become strong when there in there zone and thats flying. after live air speed is created the thrust will take alot of the weight off the stabs. but all in all if they were to break it would be on take off only and using a extreme amount of elevator throw....i thnk the most important thing on this plane is to have enough power and most NOT TAIL HEAVY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!



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RE: Banana hobbie's new f18 - 1/3/2009 11:59 AM   
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I just ordered the HET 90mm F-18. I've been following this thread & dont understand how Banana Hobby can let this go so long without chimeing in. Not good business.. They are beautiful jets though.. Good luck with the maidens!!!

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RE: Banana hobbie's new f18 - 1/3/2009 5:38 PM   
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quote:

ORIGINAL: Kmot

$600 bucks for a foamie??

And it is not even as advertised? I feel sorry for you guys who got taken by Bananarama Hobbies....

They should give you a partial refund at the very least!

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RE: Banana hobbie's new f18 - 1/3/2009 6:36 PM   
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I don't understand why you guys are making so many changes on this plane....fly it as it is.

I am using a Zippy 5s 5000mah and the plane flys just fine. The CG is off if you try for the 105mm using the included lipo......the Zippy sets the CG spot on. I am getting four to five minute flight time....might could go for more but 4-5 minutes is enough.

The only problems I found with the plane was the main gear were not glued very well... pulled them out and used Gorilla glue(white) to re-install them. The other problem was installing the control horns. When the two piece horns were tightened down it crushed the foam to a degree that it weaken the attachment point. Once again I used Gorilla glue to reinforce the horns.

This is the nicest and largest foamie I have seen....it flies great and is fast. The LG could be a worry but if you land half way decent the LG will take up quite abit of shock. On my second flight I flew too long and had a down wind dead stick landing so I pulled the LG up and landed in the tallest grass I could find....no damage at all.

I bought the PNP only because I didn't know there was a kit version. By the way I don't miss the rudders but I fly from a paved strip.....the take off run is not too long and I haven't had a problem of the plane wandering too much on take off. Fly in lite to no wind guys....and you won't need rudder.

I removed all the orderence.....it looks cool but causes lots of drag.



Banana Hobby question:
I would like to know if these motors/esc could take 6s lipos?

< Message edited by Max1965 -- 1/3/2009 8:33 PM >


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RE: Banana hobbie's new f18 - 1/3/2009 9:20 PM   
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Your 5000 mah battery only gives 4-5 flight minutes!!! The jet on the website advertises that the plane get 10-15 minutes of flight time with the 3700mah battery. Is this the same for the rest of you guys???

< Message edited by Detour747 -- 1/3/2009 9:22 PM >


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RE: Banana hobbie's new f18 - 1/3/2009 11:37 PM   
ricardinho


 

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i flew mine today on the 3700 . wide open about 4 minutes. it was very windy today also. i landed this thing very soft in the grass. the front nose gear is very week in the grass. if you land in the grass you will have to bend it out alittle after every flight. i think this thing is not as advertized. its the sizzzle and not the steak. i dont blame them though. its buisness. also be sure to extra snug all adjustments on the rear wheels . every thing you can find. the nose as well. well anyway went good. is fast needs lots of runway and landing room. i wont buy anymore though. quality is junk....

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RE: Banana hobbie's new f18 - 1/4/2009 12:31 AM   
Max1965


 

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Detour747
Your 5000 mah battery only gives 4-5 flight minutes!!! The jet on the website advertises that the plane get 10-15 minutes of flight time with the 3700mah battery.


Detour, I said I land after 4-5 minute flights....not that I get only 4-5 minute flights. Besides I fly the hell out of the plane . If you believe ANY plane such as the FA-18 will fly for 10-15 minutes no matter if 3700Mah or 5000Mah then you haven't been flying EDfs for very long.

I would not purchase this plane to fly on a grass runway unless I canned the LGs and bellyflopped the plane. I use a paved runway and I have had a few less than graceful landings but the LG hasen't parted from the plane yet. Of course I glued the mains in with lots of Gorilla glue. Still what did you guys expect? You can tell from the pictures that the landing gear will not stand up to grass....and you better grease the landing on a paved runway. If you must land in the grass...as I did...then do so with the landing gear up. The plane is fast....flies O.K. and is a nice looking palne if you don't do bad landing too often. The price is somewhat high but if you buy the kit version I think the price is o.k. So far I haven't any thing bad to say about the motor/fan/esc as they work just fine , even when I fly full throttle. SO if you think about it and buy the kit...unless you have the electronics and such you will still spend the same amount of money(or more) as the cost for the PNP.

< Message edited by Max1965 -- 1/4/2009 12:22 PM >


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RE: Banana hobbie's new f18 - 1/4/2009 12:51 AM   
ricardinho


 

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you must have misunderstood me. i got 4 minute flights and still maybe a minute for landing. the winds were high so thats eats more battery. no way on earth are you getting 10 to 15 minutes like they said on the box. thats about the flight time i get out of my 35%edge. and yes i just got into ducted fans. i have flown my buddys turbine jet a few times to obtain my waiver. these fly a little similar as far as being 3 steps ahead. i am going to fly it again tomorrow and am going to take off 1/2 once of weight. i have my battery positioned all the way back in the compartment and still seems nose heavy. right now i have 2 1/2 onces on the nose. i will remove little at a time until its perfect. thats going to cut down on landing speed and takeoff speed.. this plane would be ok bought as plane speed controll and engine. all the rest take a hammer and crush it. all my servos except the airons are gone. the gear ones striped out just from pulling them up and down. and they only ones left are the airons and nose stearing. the airons servos chatter all the time. i am on 2.4 so its the servos. they will be replaced next. i wish i would have bought the basic one. but he had that thing looking so good i couldnt refuse.....

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RE: Banana hobbie's new f18 - 1/4/2009 12:59 AM   
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ricardinho I was not posting to you....read my post again. NO where did I say I flew for 10-15 minutes........

< Message edited by Max1965 -- 1/4/2009 1:02 AM >


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RE: Banana hobbie's new f18 - 1/4/2009 1:15 AM   
ricardinho


 

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i think we have confused eachother. i was agreeing with you about what the manufacturer said about that long flight time. sorry i thought you were talking to me because my name was on your reply. sorry just trying help...

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RE: Banana hobbie's new f18 - 1/4/2009 2:20 AM   
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Max, your right about me being somewhat new to edf's. I only have experience with a previouse jet before this that flew at about 85mph... so Iam looking for something a little bigger and badder. I didnt know this thing had TWO 90mm engines though.

< Message edited by Detour747 -- 1/4/2009 2:23 AM >


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RE: Banana hobbie's new f18 - 1/4/2009 3:43 AM   
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Max,

We must be talking about two different planes. The BH F/A-18 I have only has one fan/motor that splits out through the dual exhausts.

Pat,

I think Max is right on the grass landings. Did you take off from grass or just end up there being a windy day? What brand servos did you use to replace the bad ones? How much of the plane did you have to take apart to get to the connectors? As for the CG, I take it you're still using the battery you bought separately and not the BH battery? Can you tell us exactly where it balanced with the 2.5oz up front and the battery all the way back?

Glad to hear it behaves well in the air!! Tomorrow will be another sucky day here.

Nick


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RE: Banana hobbie's new f18 - 1/4/2009 12:32 PM   
ricardinho


 

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hey man. plane flys fine. needs good speed for landing. will sink when you start pulling back on throttle. i am using a flightpower 3700 18.5.. getting about 4 minutes plus time for landing. and that was in windy conditions. i take off from paved runway and land in grass until i gey used to the plane. today i will land on runway. i still the 2 1/2 onces on front and had battery as far back in the compartment. will take off a little weight also today. trial and error. all in all is easy to fly and forgiving. about the retract servos. very easy. the conectors for the rear are under the speedcontroll cover. the front is conected under the battery compartment. you may have to fish alittle there but not that bad. dont trust them retract servos very long. the hitec hs65 mightfeathers are great . i had to use one futaba on one size so they all move togeather. will keep you posted about the cg thing

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RE: Banana hobbie's new f18 - 1/4/2009 12:36 PM   
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frisconick
The BH F/A-18 I have only has one fan/motor

Boy am I embarrassed This plane was a gift and I was told it had two motors......I just never looked ...nor did I read the specs. In fact believing the plane had two motors is why I installed the 5000mah battery. Oh well no problem because the plane flies great. Next time I will read the specs on the plane. Actually I don't normally fly foamies but this one is nice. Sorry for the wrong information...... .

I did reinforce the Horz stab with CF strips as I was affraid I would rip one off doing violent manuverers. I too think the plane should have CF rods on the wings as well as the Horz stab......the factory should do this upgrade.

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RE: Banana hobbie's new f18 - 1/4/2009 1:14 PM   
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Anyone got a video of this flying, besides the BH one? And how fast is this plane actually?

About the CF wingsupports, where can u buy those?


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