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HUGE ULTIMATE BUILD

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Old 01-05-2005, 10:37 PM
  #1
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Default HUGE ULTIMATE BUILD

Well i took a few days off this week and decided to get building. yesterday i took and cut the fuse out of foam. i just cut the plan out and glued it to the foam with a glue stick. then i got out the jig saw and went to town. then i started building the rudder. for christmas, my Dad got me a craftsman sander with the 6" disc and the 4" belt. then my daughter got me a bandsaw. wow- what a difference these two tools make when building! wish i had them when i did my triplane. this morning i got up and started on the fin. i finished that and then started on the stab and elevators. i went ahead and enlarged these (rudder and elevators) because i feel they were undersized on the 40 size plane. then i propped up the fuse and clamped these parts together. man this thing is big! i went ahead and took some pics and will get them out and soon as possible.
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Old 01-06-2005, 12:50 PM
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Default RE: HUGE ULTIMATE BUILD

what are your opinions on servos for the tail. i'm thinking of a 805 hitec for the rudder. i was going to use the 645mg (2) for the elevators . is this enough? maybe i should use 2 more 805s for the elevators. i like the price of these servos, but they are not metal geared. they do have a stout gear train though. what do you guys think? i'm getting ready to sheet the fuse, so i need to lay everything out
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Old 01-06-2005, 09:04 PM
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Default RE: HUGE ULTIMATE BUILD

Which ultimate is this?
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Old 01-07-2005, 07:20 AM
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Default RE: HUGE ULTIMATE BUILD

my scratch built 86" wingspan profile ultimate. fuse length is a about 87". do you think the 645's are enough. it should (hoping) be 22lbs or less. i don't really want to pop $200 for digital elevator servos if i don't have to. anybody use the digital version of the 645 without any problems?
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Old 01-07-2005, 07:39 AM
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Default RE: HUGE ULTIMATE BUILD

post us some pics, this ultimate sounds sick, did u have the .40 siz goldberg model?? If so want modifcations sould i make to it to fly 3D. I just got it for christmass but i havent started it yet cuz i wanna turn it into a 3D plane.
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Old 01-07-2005, 07:50 AM
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Default RE: HUGE ULTIMATE BUILD

i have the .40 size sig kit. then i took and double the plans. the elevator and rudder definitly needed to be enlarged. are you sure it's a goldberg kit. i didn't know they made one. i'll gets some pics as soon as i burn up the roll of film.
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Old 01-07-2005, 11:38 AM
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Default RE: HUGE ULTIMATE BUILD

Its either goldberg, or sig, im pretty sure its a G/B kit.
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Old 01-07-2005, 12:17 PM
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Default RE: HUGE ULTIMATE BUILD

i know goldberg makes a ..60 size ultimate, it's not a profile though. well i guess i need to get out to the garage. i'm going to try to get the fuse sheeted today. first i'm going to hunt down some wingtubes.
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Old 01-07-2005, 12:17 PM
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Default RE: HUGE ULTIMATE BUILD

Come on mrbig.....get the pics up I'm getting excited.

What are you going to strap on the nose?
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Old 01-07-2005, 03:00 PM
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Default RE: HUGE ULTIMATE BUILD

I'm watching this one!

Lets see the pics!!
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Old 01-07-2005, 03:21 PM
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Default RE: HUGE ULTIMATE BUILD

zdz 80 or brison 5.8- depends on what it takes to balance. i really want the brison though. hopefully tomorrow with the pics.
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Old 01-07-2005, 03:31 PM
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Default RE: HUGE ULTIMATE BUILD

645s sound a little weak pushing two ailerons a piece!
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Old 01-07-2005, 03:47 PM
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Default RE: HUGE ULTIMATE BUILD

dhooks- the 645's are for the elevators- one on each side. i measured the span of it- it comes out to 36". will they be enough? i'm using 4 servos for the ailerons. these will probaly be 645's also
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Old 01-07-2005, 07:51 PM
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Default RE: HUGE ULTIMATE BUILD

That sounds much more like it!
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Old 01-07-2005, 08:27 PM
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Default RE: HUGE ULTIMATE BUILD

Pictures
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Old 01-07-2005, 08:51 PM
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Default RE: HUGE ULTIMATE BUILD

pics tomorrow for sure- i've been burning up the roll. i have the sheeting cut to size for one side of the fuse. had to hit kmart for masking tape- can never find anything when i need it. then again if i picked up the place and got organized.....I also got the bench cleared off so i can glue the sheeting on. what do you think i should use- gorilla glue? seen that done on the review of the 65" omp yak, and it looked easy enough.
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Old 01-07-2005, 09:08 PM
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Default RE: HUGE ULTIMATE BUILD

Gorilla Glue is supposed to be the best. I have also had good results with pro-bond. Just make sure you scuff up the foam with 120 grit.
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Old 01-07-2005, 09:26 PM
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Default RE: HUGE ULTIMATE BUILD

thanks. i always heard to scuff the foam, but didn't kow what grit to use.
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Old 01-08-2005, 03:18 PM
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Default RE: HUGE ULTIMATE BUILD

just sheeted the fuse. took more glue than i thought it would. glad i bought the big bottle. i should let this sit for 24 hours right? hope i did it right. well i'm off to get the film developed. i should have some pics for you guys by tonight.
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Old 01-08-2005, 07:07 PM
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Default RE: HUGE ULTIMATE BUILD

here is the inspiration.
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Old 01-08-2005, 07:16 PM
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Default RE: HUGE ULTIMATE BUILD

Id say you can handle it in 12 hours depends on how wet you had it when you glued it. Water is what activates it....when its really wet it sets up faster.
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Old 01-08-2005, 07:16 PM
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Default RE: HUGE ULTIMATE BUILD

here's the foam fuse cut out with the plan glued to it. thebasa ribs are also there. i've still got to drill the hoes for the wing spar, ailerons, lightening holes, etc. there is also four plywood root ribs. second pic-stab, elevator, fin, and rudder all framed up laying on the fuse. third pic- this is my 8 year old Cameron put in for size reference (he's tall for his age-takes after the old man).
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Old 01-08-2005, 07:17 PM
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Default RE: HUGE ULTIMATE BUILD

Oh I hope you weighted it down really well to. Like a cpl hundred lbs heavy.
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Old 01-08-2005, 07:19 PM
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Default RE: HUGE ULTIMATE BUILD

i think it was about 1:00pm when i set it up. it should be good by the morning.
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Old 01-08-2005, 07:23 PM
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Default RE: HUGE ULTIMATE BUILD

here is the tail mocked up in the fuse. my dad graciously posed with it.
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