*** Ultra Sport Brotherhood ***
#2276
It would require a bit of scratch building, BUT if you still wanted an IMAA legal Ultra Sport that would (should) still perform like the US60, you could enlarge the plans until you got the IMAA legal wingspan with the enlarged fuse and tail plane to match. I'm pretty well convinced that you can up-size/down-size this plan with no ill effects.
#2277
My Feedback: (551)
Very interesting idea!
It would require a bit of scratch building, BUT if you still wanted an IMAA legal Ultra Sport that would (should) still perform like the US60, you could enlarge the plans until you got the IMAA legal wingspan with the enlarged fuse and tail plane to match. I'm pretty well convinced that you can up-size/down-size this plan with no ill effects.
What a great flying airplane that would be! Quick responses like the 60, and not as floaty as the kit 1000. I have a 1000 kit, but now you have me thinking.
Jim
#2278
My Feedback: (9)
i helped a buddy elongate the fuse, way back so i cant remember exactly how much but i think it was in the 6 to 8 inch range.
we did this by tracing the slab sides of the fuse on a peace of paper then addyng the extra distence along the turtle deck line. then adding the rudder post line parallel to and same length as the original then drawing a new bottom line to bring it all togeather. cut that out of 1/64 marine ply (because the new slab side was longer than the balsa we could get) and laminated balsa, two layers with the joints above the wing and half way between the wing te and stab le) to make the new slab sides. then built it by the numbers.
flew ju like the us60!
Joe
we did this by tracing the slab sides of the fuse on a peace of paper then addyng the extra distence along the turtle deck line. then adding the rudder post line parallel to and same length as the original then drawing a new bottom line to bring it all togeather. cut that out of 1/64 marine ply (because the new slab side was longer than the balsa we could get) and laminated balsa, two layers with the joints above the wing and half way between the wing te and stab le) to make the new slab sides. then built it by the numbers.
flew ju like the us60!
Joe
#2280
My Feedback: (551)
The extended wing gave the 1000 an increase in span of 12% and about 10% more wing area, so in order to give the 1000 the same ratios of area and moments as the 60, you would have to increase the length of the fuse from the CG back by 12% to offset the span increase and also increase the total area of the tail surfaces by 10% to offset the increase in the wing area. That would give you an airplane basically the same size as the kit plane. It still wouldn't fly the same as the 60 because of the higher aspect ratio wing, but it would be close. Blowing the plans up 12% gives you an airplane that is 25% larger than the kit plane, and aside from the unavoidable effects of the larger size and weight, it would fly exactly like the 60.
A 25% larger Ultra Sport 1000 (US1250?) would give a few more engine options also. Moki 2.1....50cc gas...Saito 220? A 50cc gas twin with the jugs hanging out would be awesome!
Jim
A 25% larger Ultra Sport 1000 (US1250?) would give a few more engine options also. Moki 2.1....50cc gas...Saito 220? A 50cc gas twin with the jugs hanging out would be awesome!
Jim
Last edited by jrf; 06-05-2014 at 10:49 AM.
#2283
Join Date: Mar 2012
Location: East Tawas,
MI
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"I hate it when that happens"
OK, I have to share with the Ultrasport Brotherhood and post this, originally completed in 1993 and have flown it religiously every year since then, Never more than a weed hole or tip wing rash or so until now. I won 5th prize in the Monokote covering contest when I completed it, hence the magazine pictures. US40 kit with O.S.61 and Dave Brown retracts as a tail dragger. I kinda put her in a coma last evening doing rolling figure 8's and she is currently resting in ICU until I can get a canopy and 6 rolls of Monokote for its resurrection this winter if I can stand looking at it in pieces that long. Going with a .46 heli motor with a pitts muffler this time instead of the heavy extremely overpowered .61 but boy did she smoke along... It will live again! My oldest daughter is in the Tower magazine ad and is the mother of my grandson who witnessed my fail in the crash pics. 21 years flying this jewel, not too shabby... "It happens" when you fly 'em like you stole 'em :-) ... how do I find my Ultra Sport brotherhood number?
#2284
Bummer! I remember those adds. Congratulations on getting her published. Remember, rebuilding her will add some weight. You may want to consider an OS 55AX. A little more oomph than the .46, but not as hot as the .61 was.
#2286
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Join Date: May 2014
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Well guys i found out that a evolution 33cc engine will work and fit just fine in my US1000 so this is the way i'm going when i build it.I will post as i go along.Mean time i will fly my 60 size which i had from back in 1997 its my favorite out of all my other planes.
#2287
I am in the process of building a US 1000 for another RCU member. We're planning for a DLE-30 to hang on the nose of it. I've "installed" it on the plans and looks like there is going to be plenty of room for the engine to go in there. One of the nice things about having a gas engine is that I can now move the fuel tank whenever I want instead of directly behind the firewall. I'm planning on moving the fuel tank, as well as a smoke tank back into the fuselage to that it's a bit closer to the CG of the plane. The owner of the plane wants a tricycle retracts on the plane so moving the tanks is needed so that I have room to put the nose gear behind teh firewall.
Ken
Ken
#2289
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Join Date: May 2014
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Ken thats right didnt think of moving the fuel tank, it is better to move it back some ,I didnt think the DLE would fit also its cheaper then the evolution 33cc.
Tango i have seen a kit on rcu for $200.00 go to the buy and sell section and type in us1000 it still might be for sale
Tango i have seen a kit on rcu for $200.00 go to the buy and sell section and type in us1000 it still might be for sale
#2292
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Join Date: Apr 2014
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#2293
Join Date: Nov 2006
Location: Pueblo West,
CO
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Hi Joe, No I just try to iron down or trim solvent down the point as best I can, sometimes they stay, sometimes not. I have in the past rounded out the point to about a 1/4 radius but I don't think this makes a huge difference.
You can see the trim solvent bleeds the color. Back in the 90's I used too wet out the entire strip with not much bleeding, not sure if formulation changes have made it worse or if some colors just run more than others. Here I used the windex method and sealed the edges with trim solvent.
Calvi
You can see the trim solvent bleeds the color. Back in the 90's I used too wet out the entire strip with not much bleeding, not sure if formulation changes have made it worse or if some colors just run more than others. Here I used the windex method and sealed the edges with trim solvent.
Calvi
#2294
My Feedback: (551)
If an individual still has the Great Planes plans that came with a kit they can sell them to you. The RCM plans are still available at rcmplans.com, but I have heard that the current owner may not be filling orders at this time. Try asking him a question by email first to see if you get a timely answer. Of course if an individual has the RCM plans, they can sell them to you.
Last edited by jrf; 06-07-2014 at 08:29 AM.
#2297
My Feedback: (551)
Jim
Last edited by jrf; 06-07-2014 at 08:55 PM.
#2299
There is an US 1000 kit for sale in the Marketplace right now for very affordable price of $200. If I had any free cash I would jump on it like a duck on a junebug, but my wife just opened up an Yoga Studio so any free cash we have is pretty tied up. So anybody looking for an Ultra Sport 1000 kit, I'd jump quickly as this kit won't last long at this price.
Ken
Ken