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*** Ultra Sport Brotherhood ***

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Old 08-24-2018, 07:49 PM
  #3076  
Warbird40
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I will take 163 if still available or the next available #
Thanks

Last edited by Warbird40; 08-24-2018 at 11:22 PM.
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Old 09-06-2018, 09:36 AM
  #3077  
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Default Engine debate

So my Ultra S 40 is powered by a Thunder Tiger Pro 46 (stock exhaust) but I have an OS 40SR with tuned pipe that I would like to run.....which set up you think will give me the best performance?
thanks
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Old 09-06-2018, 03:00 PM
  #3078  
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Depends on how you describe performance. Level flight top speed? Acceleration and vertical penetration? Usable speed range? Results are heavily dependent on the prop you use on each engine and how the tuned pipe is tuned. What are you hoping to get?

Last edited by jrf; 09-06-2018 at 03:02 PM.
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Old 09-18-2018, 09:06 AM
  #3079  
paladin
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WELL WHILE RECOVERING my 32 year old us60 I debated replacing the servos (same age as the plane) and having never worn out a pot I decided to leave the old servos in. within 10 flights of the new cover job I had just broken off from formation with m son and completed the down wind turn and the plane rolled left (aileron only role) I corrected and it came right back. it happened two more times before I was far enough down wind to roll into a final. I brought it down with hast leveled it to the runway, pulled the nose up and about 10 ft later it rolled left again. I was expecting it but the nose drop was to much for how high I was and I broke it in half at the canopy. I took 10 days and put the jig saw puzzle back together with about 10 flights on it now and the new radio system.

we have noticed that mine (powered by turnagy sk35055-430 turning a 12x12) flys just as fast as my son's (powered by a turnagy sk24358-500 turning a 12x12) on straight and level. in turns, maneuvers, especially vertical mine just walks away from his. so he switched to the same motor as mine and now we are almost = but he does not have a spinner on his and it seams to cost him about 5-10 ft under what mine covers in a low pass. so we are looking to get a spinner to test that assumption.

Joe
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Old 09-19-2018, 04:25 AM
  #3080  
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Originally Posted by paladin View Post
WELL WHILE RECOVERING my 32 year old us60 I debated replacing the servos (same age as the plane) and having never worn out a pot I decided to leave the old servos in. within 10 flights of the new cover job I had just broken off from formation with m son and completed the down wind turn and the plane rolled left (aileron only role) I corrected and it came right back. it happened two more times before I was far enough down wind to roll into a final. I brought it down with hast leveled it to the runway, pulled the nose up and about 10 ft later it rolled left again. I was expecting it but the nose drop was to much for how high I was and I broke it in half at the canopy. I took 10 days and put the jig saw puzzle back together with about 10 flights on it now and the new radio system.

we have noticed that mine (powered by turnagy sk35055-430 turning a 12x12) flys just as fast as my son's (powered by a turnagy sk24358-500 turning a 12x12) on straight and level. in turns, maneuvers, especially vertical mine just walks away from his. so he switched to the same motor as mine and now we are almost = but he does not have a spinner on his and it seams to cost him about 5-10 ft under what mine covers in a low pass. so we are looking to get a spinner to test that assumption.

Joe
You have given me new inspiration. I have a US 40 about the same age. It was one plane I built and flew back then that Never crashed. Over the years I have let it sit as I had an OS 45 pump and the Carburetor gave out years ago and I never did repair it. I just built more planes and let it sit. There are a few holes in the covering due to many moves and age. It, too has over 30 year old servos. I have always been hesitant to sell it or get rid of it because it flew so well, and like I say, never crashed. So I kept it sitting in the shop and moved it when we moved.
I have since began using electric in most of my airplanes, This would be a great project to recover and replace the worn out OS with electric. I'm not sure when I'll get it done, but It has moved to the top of my list.
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Old 11-14-2018, 03:55 PM
  #3081  
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Default Ulta Ultrasport

I have planes and can cut the kits for120"ws Ultrasport if you guys think youd be interested let me know.Now theres a project...Michael
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Old 04-06-2019, 01:18 PM
  #3082  
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Is there such a thing as too many Ultra Sports? Back during the Perry GA swap meet held by the GAMA airplane club I rescued a 60 size plane that was in really good shape pretty much ready to fly engine and servos but the bottom part of the rudder was broke. What is was is that the builder when he installed the rudder tail wheel he mistakenly glued in the plastic bearing into the rudder instead of the tail post of the fuse. I had to cut the rudder off strip the covering and just simply knock off the bottom part of the rudder and glue on a new piece of wood and sand back to shape recover the rudder and reinstall the tail wheel to properly glue in the plastic bearing of the tail wheel into the tail post of the fuse and boom recover look like it was never broke. The plane was equipped with a Saito 82 golden knight when I was checking out the plane from the seller the engine had pretty much no compression but when I got it home and dribbled some fuel in the glow plug hole and turned it by hand then turned the engine with a starter I then put the glow plug back in and like a Saito the engine had plenty of compression but the bearings were noisy loud so I send the engine to Horizon they put in new bearings and shipped back to the house for only $61. Now I'm waiting for some nice weather to give the plane a go.
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Old 04-06-2019, 01:28 PM
  #3083  
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The next US is a 1000 the seller told me that the person that was in the process of building the plane past away and what you see is what I bought the fuse was already covered but was missing the canopy and the push rods to the tail feathers and motor mount and ailerons. I told the seller that I'm not worried about those things I most likely have them in my parts box which I did. The wing did have some hangar rash but some sanding and some cutting all that was gone. What drawn me to this plane is that the builder had already made the progress to install retracts so I already have a set of Robart electric retracts to install in this thing so I have everything I need to complete this plane except I did have to go to ebay and buy me a canopy but that is a must to finish this plane. As of this writing I'm waiting for the epoxy to cure in the tank compartment and the engine compartment so next all I have to do is cover the wing and fuel proof the wheel wells install the tank and finalize the balance. I'm going to use a OS 1.20 AX on this plane I really think this engine will make this plane very lively.
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Old 04-06-2019, 01:32 PM
  #3084  
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If anyone is asking about the wheel wells I used cardboard from the box that you buy a pack of soda. If you take your time the cardboard will be cut to fit from the surface of the sheeting down to the other side of the sheeting. Monokote does stick to the cardboard and then when you fuel proof the wheel wells you then glue down the covering. I will post pictures of the final look here shortly.
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