RE: OS AX 46 needs more power
[quote]ORIGINAL: daven The OS AX .46 is faster the OS FX .46, well documented in our area as we have been racing those motors for somewhere around 15 years. Ignore your RPM / PITCH calculations, I won a ton of races using a standard APC 10x7 Sport Prop. A couple of the APC pylon props do work, I believe many of them are using the 9 1/2'' x 8.5 N (Single N, not double NN). Good luck. [/quote] I don't think the AX has been around 10 years, much less 15. My experience with both has the FX faster on top end, the AX torquier at lower rpms.
Posted on: 8/2/2012 1:50 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11178809

RE: Whiplash Delta with FAI Nelson/Piped
[quote]ORIGINAL: ehelibuff I'm running a carbon APC prop. Can't remember the size. Turning 38,000 [/quote] Yep, definitely blew your fuse.[8|]
Posted on: 7/26/2012 12:18 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11170205

RE: OS AX 46 needs more power
Higher ABEC ratings (numerically) do not mean that the bearing will spin faster nor with less drag. They are a tighter fit bearing with less clearance between the races and balls. Less clearance = more drag. Less clearance also means better precision and is why the highly rated bearings are used in precision instruments. It amazes me what some people will post! BTW, I'm a mechanical engineer that specifies the [b]correct[/b] bearings to be used in the machines that I design.
Posted on: 7/26/2012 12:14 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11170201

RE: H9 Jackal 50 Prop Jet
Rusty bearings?
Posted on: 7/20/2012 7:06 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11162341

RE: Boca bearings for OS .35 AX
The stock bearings should be fine. These engines are designed to turn around 17k or so.
Posted on: 6/18/2012 1:26 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11122670

RE: Altitude effects?
Thinner air at altitude presents less resistance to rolling therefore it rolls more. Makes sense to me, how about you?
Posted on: 6/18/2012 7:42 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11122289

RE: Little Toni w/ OS 95AX
Some further speeds with the engine tuned properly, still no cowl or wheel pants or tuned pipe. 12x10 119 mph 12x11 117 mph 13x11 116 mph Still got a few more props to try before I add a tuned pipe.
Posted on: 6/15/2012 9:02 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11119199

RE: o,s, 32 max
[quote]ORIGINAL: freakingfast I have a Cobra (wood kit) and an LR-1 (un-flown /upgraded) that I'm not going to ever fly[&o]. Too dang small for my eyes to see. Sticking to my deltas with florescent red on top and black on the bottom, that I can see. Sucks getting old. [/quote] If'n youre not gonna fly that LR-1, what ya gonna dew with eet? Oh, getting old beats the alternative...[:D]
Posted on: 6/13/2012 10:02 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11116869

RE: o,s, 32 max
I've seen that vid, the plane is smokin' fast!! My engine is not the FIRE, it is a FISE BSE with Jett muffler. Does that marine pipe make the engine real peaky?
Posted on: 6/12/2012 8:36 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11115561

RE: o,s, 32 max
'twas the Extreme Composites, if I remember correctly. I tried 9 x 6, 9 x 7, & 9 x 8 on stock muffler, the 9 x 8 was the fastest in a dive though it did run a bit on the warm side. 9 x 7 was fastest in level flight. The next one (I have a new LR-1 in the box) will have my Jett 35 on it.
Posted on: 6/11/2012 3:14 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11114795

RE: o,s, 32 max
9 x 8 is what gave the most speed on my LR-1.
Posted on: 6/11/2012 1:19 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11114660

RE: o,s, 32 max
9 x 8 will make it happy.
Posted on: 6/11/2012 12:38 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11114623

RE: Little Toni w/ OS 95AX
Tuned for speed means leaned out for maximum speed, not 1000 rpm richer...not pig rich as stated above. As for wheel pants, some help aeros, some do not. Depends on frontal area and how sharp the trailing edge is.
Posted on: 5/14/2012 2:20 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11080600

RE: Little Toni w/ OS 95AX
Finally got the wing repaired after a botched landing. Still running pig rich breaking the new engine in. So far, speeds as follows: 12 x 10 113 mph 12 x 11 114 mph 12 x 12 116 mph 11 x 12 104 mph 13 x 11 104 mph These speeds are on different days, no wheel pants, no cowl. Speeds recorded by Eagletree. I figure another 10 mph tuned for speed, another 5-10 mph with wheel pants and cowl. Then...add tuned pipe for maybe another 8-10 mph.
Posted on: 5/14/2012 12:52 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11080494

RE: Little Toni advice needed
The spinner that comes with the Toni is of poor quality. Not balanced at all...
Posted on: 4/27/2012 12:37 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11059277

RE: new world speed records
Wow!! Over 150 mph heli!![:-]
Posted on: 3/16/2012 1:39 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=11003025

RE: First
Didn't check it. Ran a 12 x 8 on the bench, don't remember what it turned that at.
Posted on: 3/4/2012 7:15 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10986691

RE: First
[quote]ORIGINAL: airraptor Just to let you know the GP Little Toni will not do 120 with a 60-95 size engine. and a 120 will be lucky to get 110. The fastest one ever was with a OS 91 DF engine and it only got to 150. you could put a YS 115 in it and get 130. [/quote] Mine has done 118 with the 95AX and 12 x 10 APC prop, stock muffler, that is still running way rich, not broke in yet. So I think 120 is well within it's sights. I've got the Eagletree speed recorder (uses a pitot tube). Can't wait to see what it does when I prop it up a bit to 12 x 12 and tune it with a pipe.[8D] I'll let you know after I repair the damage my landing gear did to my wing on a muffed landing. (I hate fixing leading edges)[>:]
Posted on: 3/4/2012 7:06 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10986675

RE: First
120 is pretty easy with a Q-500 and a .25-.40 engine. Fairly cheap too.
Posted on: 3/2/2012 1:48 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10984167

RE: First
Eyeball guess, 60-80 mph.
Posted on: 3/2/2012 12:20 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10984062

RE: First
Why are you selling it Evan? Looks like a good deal to me...
Posted on: 3/2/2012 11:44 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10984026

RE: First
Depends on how fast you want to go. For 60 size, I like the Little Toni, speed about 120. For 40 size, Q-500 such as the Viper, speed about 120-140. If you want to go faster, there are some options, but they start getting expensive too.
Posted on: 3/2/2012 9:59 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10983930

RE: Great Planes Shoestring ARF 54 Need 125 MPH!
Fairly new props. I don't think there is a mold line on them, but they are not in front of me right now either. The plane (Kaos) is actually slower with a 10 x 8 or 10 x 7 than with the 9 pitch. The muffler length with the spacer is probably too long for those props.
Posted on: 2/10/2012 10:46 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10952883

RE: Great Planes Shoestring ARF 54 Need 125 MPH!
[quote]ORIGINAL: freakingfast On the OS 55, the most extension/spacer I run is 1/8''. Any more and it moves the power band too low and the hp just falls off (even with different props) A dog. Dang engine is picky. [/quote] I'm running the 55 with the Jett red muffler and a 3/8" extension. It pulls the APC 10x9 at about 14200-14400 static. I wouldn't call that a dog.
Posted on: 2/10/2012 7:32 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10952639

RE: gp patriot 40 and enya 60 7033
[quote]ORIGINAL: Roary m If I remember right, the powerplant instructions on the plane discouraged the use of a 60 size engine. The 60 NX would be an exception because it is a small case 60 size engine. [/quote] Also the OS .55AX
Posted on: 2/6/2012 1:56 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10946865

RE: OUTLAW from EXTREME FLIGHT
The bubble jet is a tight fit. You will need to flatten the top of it for the cover to fit.
Posted on: 2/2/2012 9:56 AM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10940299

RE: Great Planes Shoestring ARF 54 Need 125 MPH!
I run the 55 w/ Jett muffler on a Tower Kaos using a APC 10x9, 118 mph on radar (out of dive). It is slightly slower with a 10x7 and 10x8 on this airframe.
Posted on: 1/19/2012 12:21 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10917280

RE: Picco .80 RIRE
Unless you can bury the exhaust inside the fuse, it will probably be slower than the electric.
Posted on: 1/10/2012 12:32 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10902046

RE: 40 size stick + K&B 61
[quote]ORIGINAL: cutaway Propped right, an LA .46 should be able to drive a .40 size stick in the 100mph+ range with no problem [/quote] Only in your dreams.[8|]
Posted on: 1/5/2012 2:18 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10893428

RE: 40 size stick + K&B 61
40 mph is extreme to some...[:)]
Posted on: 1/4/2012 12:23 PM by Author "BiggerDanno" in the forum "Extreme Speed Prop Planes"
http://www.rcuniverse.com/forum/fb.asp?m=10891547