Fliegerboy

This is in response to post #1767.

Scirocco14:

Except for the nose art and the American flag, all of the covering to include the pinstriping and the stars was done using Hangar 9 UltraCote. The pinstriping was made using the MonoKote SmartStripe tool and the stars were cut using a plastic template and a #11 exacto blade [tedious, but a good way to get the exact size needed].

KaP2011

My Feedback: (17)

Wow, and I was thinking a Super Tigre G90 would be too much for a US 60, maybe not.

AmishWarlord

My Feedback: (5)

G90 is a bit much.
I don't think a 9 pound plane needs 12.4 pounds of thrust to fly.

big_G

My US 40..hot OS on a pipe and retracts was shredded thru a tree a couple of years ago. I had over 400 flights and 15 years on her. Count me in, as I will build a 40 or 60 size next.

GaryHarris

Something my dad told me when I was a kid racing MX.

"Maybe when you grow up youll get a 4 stroke."

KaP2011

My Feedback: (17)

HEHE that's what I was thinking, but hey, I wouldn't need a runway to launch it. I could just hold it out in front of me and give it full throttle...just kidding.

box car

My US 60 has a G90 in it. My US60 twin has 2 G90s in it and my US60 15% has an OS120AX in it. A 60 in a US60 would be like putting a V6 in a Vet. I have been flying for 55 years, what do I know, right. My next build is a US1000 25%, 92 inch. wing span, 80CC gas.
Ken

KaP2011

My Feedback: (17)

Are you running the stock muffler on the G90? How is the performance? I would imagine it would fly straight up until it was out of sight. I was planning on putting an OS 91 S II on it but I'm thinking a 2 stroke would be better. I have the G90 and an OS 61 that are not mounted in a plane. However I do not like the stock G90muffler. I'm thinking a Mac's muffler would be better. What do you guy's think?

AmishWarlord

My Feedback: (5)

A 2012 Corvette was designed for a 668 HP V8

Your stuffing a 1,169 HP super charged V12 engine in it.

A sport plane only needs 125 Watts per pound to fly well.

A 60 in a US60 is about 150 Watts per pound.

Your ST G90 in a US60 is 207 Watts per pound.

Your G90 twin US60 is 355 Watts per pound.

What do you do with all that power?

How long are your flight times?

How do they handle when you get a dead stick?

What's the stall speed of those planes?

Do they slow down nicely for landings?

When taxiing do they sit still when your idling or are they always on the move?

KaP2011

My Feedback: (17)

All very good questions.

How does an OS 91 S IIstack up? I don't really want to use the OS 61. My only other option is a Tower .75 that a friend has that I could trade for. But again there is the muffler issue, I don't like the large Super Tigretype muffler that comes with it.

xxspeed

My Feedback: (5)

I have a US 1000 converted to electric using 12 cell battery set up..flys much better that with the ST 2300. Plane is 20 years old and still is a pleasure to fly.. Ill post a picture if anyone is interested. I need to joint the brotherhood looks like a good link. xxspeed

Quikturn

My Feedback: (12)

I had a Midwest Super Hots (60 size) that I decided to put a ST 90 into and lets just say it had ridiculous power. The 61 SF engine I had in before had plenty of power.

I can't say it didn't put a smile on my face and made me giggle every time I flew it but it was definitely overkill.

As fun as it was, it didn't last long as the engine was starting to rattle the wing mount loose.

Douglas Robinson

Hi
Please include me in the Brotherhood. I have two 60 size U/sports, one with balsa covered wings, and trike gear, and the second that I am trying to build as light as possible, and with two piece wings on a graphite tube, at shoulder height, not quite finished yet.
I will get some photos.

Doug Robinson

Douglas Robinson

Re the power:

I have an OS 75 in one of my U/S's and am planning to put an OS 91 4 stroke in the other.

Question: My OS 91 has a damaged fuel pump. Does anyone know if the engine will run adequately with muffler pressure rather than with the fuel pump. Alternatively, it could use crankcase pressure via the backplate connection to the "missing" fuel pump

rglgatortail

My Feedback: (7)

Your in Doug Robinson just put your number in your signature and your done.

1. Ken Isaac - RCKen
2. Mike Buzzeo - Minnflyer
3. Alex7403
4. Dash008
5. AH1G
6. tschuy
7. MILDBILL-RCU
8. Box car
9. Top Gunn
10. SeaJay
11. Crash Campbell
12. SKYHI1
13. ChuckW
14. RhyanO
15. landeck
16. Ilikebipes
17. airbusdrvr
18. Insanemoondoggie
19. daisy shoot
20. prgonzalez
21. BelAirBob
22. hrrcflyer
23. rastus1
24. tony0707
25. *JCB*
26. Redback
27. bigugly
28. MetallicaJunkie
29. Gordie M
30. Jim_Purcha
31. rcsws
32. jeffsend
33. fireman7875
34. 72
35. ser00
36. Oly
37. cpeisher
38. donzhere
39. SKYHI1
40. kbarko
41. pgilbert
42. rambler53
43. rcjets_63
44. dschroeder
45. Quikturn
46. blueapplepaste
47. green river rc
48. SushiSeeker
49. VCScott
50. FallDownGoBoom
51. ccp10
52. Deadeye
53. Eganwp
54. carlosponti
55. Navy18
56. MineBurg
57. Cdallas2
58. loopyrc
59. Sled
60. Bernard
61. jrbmoto
62. Bubba153
63. Alfredbmor
64. FentonFlyer
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66. BLW
67. smkrcflyer
68. gabarber
69. Amishwarlord
70. JPMacG
71. kamakazie frank
72. RussianFlyer
73. RoyR
74. Red Jeepster
75. Fallingleaf
76. Yukonflier
77. rcjim000
78. goonybird1
79. rglgatortail
80. Latebreaker
81. Tango juliet
82. Saito18
83. hafidy
84. RR24
85. mechdrew
86. siko_flyer
87. Kit
88. n7188u
89. gerryndennis
90. JNorton
91. misterv
92. Mustangman40
93. OntAeronut
94. proptop
95. scottrc
96. scirocco14
97. pt19 flyer
98. Doug47
99. b.bixel
100! bikerbc
101. weezle
102. Mtthwacrss
103. matadco
104. rickbrad
105. GaryHarris
106. Roary m
107. P47Tbolt
108. jp boud
109. arrdee
110. KaP2011
111. HFrank
112. custombuiltrc
113. jquid
114. dasquirrelisme
115. KC10Chief
116. _Tommy D
117. Do328jet
118. sirzepp
119. mrshea
120. AJsToyz
121. svenska3
122. I FLY
123. turnscrew
124. SteveW
125. Super08
126. ma_mulcahy
127. digital_trucker
128. ARTP47
129. us020140
130. Profiled
131. kgibson4
132. r/coldie
133. Tubthumper
134. JH313
135. TWIN FLYER
136. Fliegerboy
137. Doug Robinson

Quikturn

My Feedback: (12)

I don't have experience with this engine however, in the case of pumped 2 strokes the carb venturi is larger and won't run well if at all w/o a pump. I would try a perry pump (VP-30) if you aren't able to repair the original pump. The perry pump uses crankcase pressure.

KaP2011

My Feedback: (17)

I did the maiden flight on my US 40+ yesterday and it went great. However, with the Saito .56 it was underpowered (as someone here had already told me it would be). I brought it home and swaped it out for a Saito .72. Tried it out today and WOW! What a difference another .3 hp makes. Flies great and slows down to a crawl for landing. It does not have verticle power to hover but my skills are not up to that anyway. Running an APC 11X9 prop.

Fliegerboy

Congrats, KaP2011 !

Nice pictures and nice runway.

KaP2011

My Feedback: (17)

Thanks, it's 50' X 200' and I can only hit it half the time hehe. I found a new control surface that I had noticed before but had not paid much attention to. It does wonderful things. One of the guy's I fly with told me it was called the rudder. Huh, who would have known. I can actually steer the plane in the air with it!

GaryHarris

Beautiful plane KaP.

kgibson4

My Feedback: (4)

Looking Good, KaP2011! It sounds like you had a good time.

Did the retracts work out OK for you? Do you know what rpm you're turning with that prop?

KaP2011

My Feedback: (17)

I didn't check the RPM's today but I intent to check it Wednesday when I go flying again.
I have the retracts locked in the down position for now. Since working with the retracts on my P-40 I have aquired an aversion to mechanical retracts. I started out with the intention of putting the mech. retracts in this plane and my US 60 but since have decided to go with eflite electric retracts. Now I'm just waiting until I have the funds to order the retracts.

Fliegerboy

The weather in Spokane has finally improved to the point where it was possible to maiden my US .60 last week. I've five flights under my belt now and it's getting to be fun. It took three flights to get the CG dialed in to the point where it didn't land quite so hot. I finally got my idle speed down a lot which helped with the long float while landing. We have a 600 hundred foot asphalt runway which is plenty long, but I still over ran it once before I got the idle rpm down. I have never had much success using flaps [.60 size Spitfire and Mustang], but on the last two flights I did use flaps and I was surprised at how much they slowed the plane down. With flaps I needed a couple of clicks of throttle on the approach when before I kept the throttle closed completely. The flaps were at maximum deflection [13/16 "] as measured by my Great Planes AccuThrow device. Bottom line, I heartily recommend adding flaps to the Ultra Sport.

KaP2011

My Feedback: (17)

Does anyone here have any experience with the E-flite 60 - 120 90-Degree Main Electric Retracts? I have the funds to order them now but I'm a little hesitant, the only experience I have with electric retracts is with a set of cheap ones from china and I was not too impressed.

mrshea

My Feedback: (2)

well here is my ultra sport .40. Thunder tiger .46 futaba 3004 servos just need to install radio and waitin on my spinner and prop to get here. It's also covered in monokote and i think it turned out terrific. My best effort yet. I included all the mods flaps and moved the retracts out one bay. Hopefully we'll get her maidened here in a few weeks. Phil. Us brotherhood#119