RE: Goldberg Ultimate 10-300 build  
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RE: Goldberg Ultimate 10-300 build - 12/3/2006 7:43:17 PM   
baldrick


 

Posts: 44
Joined: 2/28/2006
From: Christchurch, NEW ZEALAND
Status: offline 		Redundant packs are the way to go. If I have a bad unexplained crash everything gets thrown out. The reciever get looked at then when it comes back I smash it with a hammer, like wise the servos. I have seen too many people using gear which is crash damaged. It may work for a while but one day it will catch you out. When I start building my ulti I am not using any OEM gear. The extensions are going to be heavy duty like wise the switches. Each battery pack will have an idiot light connected.
We all have too much time and money invested in our sport so the small cost of an extra battery and switch is easily justified.

(in reply to WacoCabinaero)
       Post #: 451

RE: Goldberg Ultimate 10-300 build - 12/4/2006 8:39:24 PM   
thanosg2004



Posts: 63
Joined: 10/12/2005
From: Voula, GREECE
Status: offline 		Hello everyone,
I started building my ultimate and I run into a problem.
The notched trailing edge of the wings does not line up with the wing ribs on the plan.
The inner and outer ribs line perfectly ( according to the plan ) but the middle ribs dont.
It seems that the nothced trailing edge supplied is wrong.
So shall I go on and glue it as it is or make a new trailing edge ?
Has anyone had the same problem ?
Thanks for your help,
Thanos.

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(in reply to baldrick)
       Post #: 452

RE: Goldberg Ultimate 10-300 build - 12/4/2006 9:23:41 PM   
baldrick


 

Posts: 44
Joined: 2/28/2006
From: Christchurch, NEW ZEALAND
Status: offline 		I have had similar problems with various manufacturers. I find the simplest and quickest way is to cut new notches (or trim the ribs). They aren't really structural but just an aid to assit during construction. It doesn't matter if the notches are wider but do really try to make them the correct depth. Put a nice small fillet of glue either side once you remove the wing from the board.

Any other suggestions out there?

(in reply to thanosg2004)
       Post #: 453

RE: Goldberg Ultimate 10-300 build - 12/4/2006 9:32:11 PM   
thanosg2004



Posts: 63
Joined: 10/12/2005
From: Voula, GREECE
Status: offline 		Thank's baldrick,
I think I'll cut new notches. It's easy and this way I can follow the plans 100%.
Thanks again for your help,
Thanos.

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Whoever said that money can't buy happiness, didn't know where to shop ! ! !

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       Post #: 454

RE: Goldberg Ultimate 10-300 build - 12/4/2006 10:14:56 PM   
WacoCabinaero



Posts: 115
Joined: 8/29/2005
From: Owen Sound, ON, CANADA
Status: offline 		It's not uncommon that the Leading and trailing edges length and the rib notches be out a bit. As long as the kit LE and TE are the same length and the rib nothes "line up" and of course the parts are the same for both left and right panels you likely have the intended parts even with the discrepencies.

Many plans will state in the fine print that they may differ slightly from parts provided and that even the paper shrinks and expands with relative humidity. The plan is a guide to assemble the parts provided. As long as the model is symetrical when finished and care is taken to match the materials to eliminate any warps. I have long assumed that I am going to be replacing spars and longerons when building.

If you build off the centerlines it will be fine. I am about to start on a CG Ultimate myself.

The very first 10-100 sat down the road from me for the last 14 years or so. It ended up there as it was sold to a scrapper at auction when Ultimate went under. It was flown to were is sat and rot and got parted out. It has been moved now. Sept 30th according to Moleski. I took a lot of pics of it and wondered how it had come to such an undignified end. With the million Ultimate models that have been built and flown I have wondered how many people knew or cared about it's humble beginnings and terrible end. The 10-100 was a dinky thing with the 16 foot span and slender little fuselage. The Goldberg Model is a great flyer. I would like to do a 10-200 version of it, get the cabane lowered to where it should be and shorten it up. It might not fly any better but a version of the 10-100,180,200 would be an eye pleaser.

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(in reply to thanosg2004)
       Post #: 455

RE: Goldberg Ultimate 10-300 build - 12/5/2006 12:36:26 AM   
FlyerBry



Posts: 449
Joined: 9/12/2003
From: Washington, IL, USA
Status: offline
quote:

ORIGINAL: Stearman Flyer

It's not uncommon that the Leading and trailing edges length and the rib notches be out a bit. As long as the kit LE and TE are the same length and the rib nothes "line up" and of course the parts are the same for both left and right panels you likely have the intended parts even with the discrepencies.

Many plans will state in the fine print that they may differ slightly from parts provided and that even the paper shrinks and expands with relative humidity. The plan is a guide to assemble the parts provided. As long as the model is symetrical when finished and care is taken to match the materials to eliminate any warps. I have long assumed that I am going to be replacing spars and longerons when building.

If you build off the centerlines it will be fine. I am about to start on a CG Ultimate myself.

The very first 10-100 sat down the road from me for the last 14 years or so. It ended up there as it was sold to a scrapper at auction when Ultimate went under. It was flown to were is sat and rot and got parted out. It has been moved now. Sept 30th according to Moleski. I took a lot of pics of it and wondered how it had come to such an undignified end. With the million Ultimate models that have been built and flown I have wondered how many people knew or cared about it's humble beginnings and terrible end. The 10-100 was a dinky thing with the 16 foot span and slender little fuselage. The Goldberg Model is a great flyer. I would like to do a 10-200 version of it, get the cabane lowered to where it should be and shorten it up. It might not fly any better but a version of the 10-100,180,200 would be an eye pleaser.


I have often considered doing the 20-300 version which is the two-place version under development when the company went under. I haven't been able to come up with any concrete changes to the original dimensions so I am unsure if they actually lengthened the fuselage at all. I know they moved the rear cockpit aft a bit to fit in the new front one but that's about it.



(in reply to WacoCabinaero)
       Post #: 456

RE: Goldberg Ultimate 10-300 build - 12/5/2006 1:17:10 AM   
WacoCabinaero



Posts: 115
Joined: 8/29/2005
From: Owen Sound, ON, CANADA
Status: offline
quote:

ORIGINAL: FlyerBry


I have often considered doing the 20-300 version which is the two-place version under development when the company went under. I haven't been able to come up with any concrete changes to the original dimensions so I am unsure if they actually lengthened the fuselage at all. I know they moved the rear cockpit aft a bit to fit in the new front one but that's about it.





http://www.pitts-special-team.de/pittsteam/dash200.html


A couple 3 views here show that they are close. The 20-300 was purpose minded for dual aerobatic training. The longer it gets so do the rails it's on. A variety of the models made would be a welcome site. If anyone knows of a kit or plans of aything but the 10-300 I would be interested to know one exists.

Dan Ulrich, who I believe was the draftsman for all the Ultimates did a plan for a 10-300 from the full scale blueprints. There were just a few sheets on 36" wide paper. It wasn't a model plan per say but a 1/3 scale drawing of the 10-300 in exact detail and dimensions and intended for a modeller to develop his own model from. That's going back a long time now.



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(in reply to FlyerBry)
       Post #: 457

RE: Goldberg Ultimate 10-300 build - 12/5/2006 2:58:59 PM   
WacoCabinaero



Posts: 115
Joined: 8/29/2005
From: Owen Sound, ON, CANADA
Status: offline

http://moleski.net/ULTBIPE/ulthist.htm

Within the other site there is this info on the 20-300. The 2 seater would lend itself well to a more detailed interior for a more distinctive model.

_____________________________

Be kind to your dog. Nothing will ever love you more.

(in reply to WacoCabinaero)
       Post #: 458

RE: Goldberg Ultimate 10-300 build - 12/5/2006 7:05:44 PM   
WarbirdAirRacer


 

Posts: 641
Joined: 12/18/2002
From: Littleton, CO, USA
Status: offline 		Its funny we went to the full size Ultimate....as I have called and emailed Ultimatebiplane.com and they will be sending me a set of plans for the 10-300. Seems they have bought the rights to it and are keeping the Ultimate alive?

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       Post #: 459

RE: Goldberg Ultimate 10-300 build - 12/10/2006 8:52:07 PM   
Garthwood


 

Posts: 471
Joined: 5/2/2003
From: mississauga, ON, CANADA
Status: offline 		Tuwood..................Just came across this thread again after many months. I am so sorry about the loss of the Ultimate. Yes we do get attached to our models, especially the ones we put our heart and soul into. I'm glad to see that you are all set to start building this Ultimate again, again and again if that's the way it is going to be.
I have run into some problems with mine the CG Ultimate 10-300 ARF, but it was mostly due to servo problems. No it did'nt crash, almost did. I experienced some flutter on the maiden flight, by the time it landed safely it had ripped the two aileron servos (Futaba 9202) from the centre post where the servo horn attaches. I was lucky. The second time I installed two digital Hitec servos and experienced slow input response. After a number of tests with the Hitecs with experienced pilots we figured that these servos did'nt have the speed as indicated, the response just was'nt there. I had these servos replaced with Futabas digital servos, which they are on order. It has taken this long. The test flight will be next spring. The weather did'nt cooperate this year, too many strong wind and rainy days.
The flutter was fixed by sealing the hinge line, not because the hinge line had wide gap but somehow it fluttered. On the second test flight no flutter was experienced. The Saito 120 was just fantastic, the landings were smooth. The pull-pull worked just fine.
On the third test flight experienced slow servo response, and almost lost it. It is best to invest in good quality servos. I am not knocking Hitec servos. Perhaps maybe digitals drawn high current, Futaba have digital servos that only 4.8v can be used. So go figure.

Good luck with your next Ultimate build.
Charles.

(in reply to tuwood)
       Post #: 460

RE: Goldberg Ultimate 10-300 build - 12/23/2006 7:22:37 PM   
thanosg2004



Posts: 63
Joined: 10/12/2005
From: Voula, GREECE
Status: offline 		I have one more question,
I am in the process of attaching the wings interplane struts.
But I can't find where their location is. I mean how close to the treiling edge the bottom side of the strut has to be mounted.
I found many pictures on the net and it seems that there is not a specific place for them as people
attaching them in different places. ( closer or further from the trailing edge.)

Any suggestions ?

Thanks,

Thanos.

_____________________________

Whoever said that money can't buy happiness, didn't know where to shop ! ! !

(in reply to Garthwood)
       Post #: 461

RE: Goldberg Ultimate 10-300 build - 12/23/2006 8:42:39 PM   
Garthwood


 

Posts: 471
Joined: 5/2/2003
From: mississauga, ON, CANADA
Status: offline 		Hi Thanos......................My Ultimate is an ARF, I don't have the plans. If you follow your plans together with the building manual you should be able to figure the whole thing out. The interplane struts attachment on the ARF is a bit different than the kit. But you should be able to fit the build up tabs in the hollow area of the interplane struts. I fitted mine with blind nuts, but this was a modification.
I can get you some close up pictures how mine fits but it has to be after the Christmas holidays. Let me know if you require some pics.
The cabane struts on the ARF is also quite different than the kit.

Merry Christmas
Charles.

(in reply to thanosg2004)
       Post #: 462

RE: Goldberg Ultimate 10-300 build - 12/23/2006 8:50:39 PM   
thanosg2004



Posts: 63
Joined: 10/12/2005
From: Voula, GREECE
Status: offline 		Thanks Charles,
I would like to see some pics.
Please send them when you can,
thanks again and Merry Christmas

Thanos.

_____________________________

Whoever said that money can't buy happiness, didn't know where to shop ! ! !

(in reply to Garthwood)