*** Ultra Sport Brotherhood ***
I have noticed that recently access to the forum is often not available.
I wonder if this will post.
My understanding of this forum is that it is privately established and rules of course make sense such as no religion, sex and politics should be discussed.
However I understand that anyone in the whole world has access to reading it.
That by itself is a good reason to have rules for those who have registered and gained the privilege of posting and having discussions pertaining to radio control of our toys.
Zor
Dave
1. Ken Isaac - RCKen
2. Mike Buzzeo - Minnflyer
3. Alex7403
4. Dash008
5. AH1G
6. tschuy
7. MILDBILL-RCU
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40. kbarko
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44. dschroeder
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86. siko_flyer
87. Kit
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89. gerryndennis
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109. arrdee
110. KaP2011
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115. KC10Chief
116. _Tommy D
117. Do328jet
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120. AJsToyz
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124. SteveW
125. Super08
126. ma_mulcahy
127. digital_trucker
128. ARTP47
129. us020140
130. Profiled
Dave
I was given a older ARF version of the US 40 late last year. It was RTF including a older Futaba radio and some sort of "auto pilot"!
Anyhow I replaced the radio RX to Spektrum removed the fixed gear and converted to servoless retracts. The motor is a bone stock zero or darn near zero time 46 FX. All I did was remove the baffel in the muffler.
When I checked the balance the model was well reward of the 4" thats suggested. So I replaced the pushrods with custom CF ones and added a heavier alum spinner. Inverted, gear tucked I'm just about at 4.25"s now, so I'm close.
My question is with a full tank of fuel will I not be forward of the CG range? Now granted as I burn it off the CG will shift reward, but as it gets time to land the gear comes down, and that also shifts some weight forward.
Guess I'm just wondering your thoughts on this. I have flown a LOT of electric lately, so excuse my thinking that fuel will help my balance issues.
Thoughts?
Tommy D
Powered by a Saito .56 with the option to drop a Saito.72 in if needed.
KaP2011
Ultra Sport Brotherhood #110
KaP2011
Ultra Sport Brotherhood #110
I’ve been doing a search on this forum for plans or templates. A fellow flyer bought an ultra sport 40 last fall at a swap meet. I was able to fly it for him and trim it out. I was shocked at how fast it flew with a supertigre 45.
So then I was on a mission to find one. I do not have much time to build, so I bought one used on ebay. http://www.ebay.com/itm/ws/eBayISAPI.dll?ViewItem&item=251009873257&viewitem= &sspagename=ADME%3AB%3AWNA%3AMOTORS%3A1123
I hope to get it here soon. I have time to fix and repair. The one I flew had retracts. Does anyone have the planes and templates they can e-mail me? I have a few sets of the new electric retracts and I would like to take off the fixed gear and install retracts. I’m sure this can be done after the fact.
Good luck and have fun!
KaP2011
Ultra Sport Brotherhood #110
Looks like you found a nice buy. You may not need any plans for the gear. Just place the retract units where the fixed gear blocks are now or go one rib bay out if you like a wider stance. Since that engine hasn't run in 11 years or so I would give it the overhaul treatment. A completed tear down, cook the main parts in a crock pot with antifreeze, new bearings, o-rings and piston ring if necessary and you should end up with an engine as good as new.
Good luck and have fun!
KaP2011 I have the saito 100 and it has plenty of power to spare. I had it in a 9 pound texan swinging a 16x6 and it had awesome vertical performance. you would need to use a 13x9 do to the clearance on the us which would be fine for that engine. [8D]
I had been thinking of useing the 100 in a BHM P40 that I got last year and re-kitted, (crashed on my second takeoff) I'm begining to think of rebuilding it.
KaP2011
Ultra Sport Brotherhood #110