RE: Larger Revolver    Gallery
View related threads: (in this forum | in all forums)

Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> RC Airplanes >> ARF or RTF >> RE: Larger Revolver
Page: <<   < prev  247 248 [249] 250 251 252 253 254 255 256   next >   >>  

Tower Hobbies Get Coupon Codes Brands  
Login
Message << Older Topic   Newer Topic >>
RE: Larger Revolver - 12/24/2012 2:22 PM   
wjcalhoun


 

Posts: 805
Score: 110
Joined: 12/25/2008
Last Login: 6/19/2013
From: League City, TX, USA
Status: offline
Mike:
The short version of the long story on the DLE55 bearings is...

Was installed in my PHP Ex260; taking off of a wet grass runway, almost ready to lift off. I hit a hidden puddle which tore off the main LG -> prop strike at WOT -> broken crank. I thought that with that significant force, the bearings might have been damaged (although they felt fine), so i decided to replace them.

I actually flew the plane 3 times after replacing the bearings, and had increasing trouble getting her to idle down. I think what happened is that the manufacturing grease in the bearings inhibited airflow through the bearing, and as it ran in, the grease was replaced by 2 cycle oil, which allowed for transfacial airflow through the bearing.

I have new DLE bearings on order.

Back on topic, my R70 is ready to go with the EagleTree instruments, so today, tomorrow, or the next day (weather permitting) I'll get out and fly her to get altitude, airspeed, and 3-axis g-force measurements.

Merry Christmas all,

Bill

Hide Signatures

(in reply to microdon2)
       Post #: 6201

RE: Larger Revolver - 12/24/2012 2:33 PM   
orthobird


 

Posts: 593
Score: 105
Joined: 12/2/2011
Last Login: 6/12/2013
From: shreveport, LA, USA
Status: offline
it came that way.  my mistake for not having had removed it earlier.  i should haev checked that before.  i obtained the engine brand new.  so it came that way from DA. 

_____________________________

avoid crashing!!

Hide Signatures

(in reply to Ernie Misner)
       Post #: 6202

RE: Larger Revolver - 12/24/2012 3:05 PM   
lopflyers


 

Posts: 1221
Score: 140
Joined: 6/21/2010
Last Login: 6/18/2013
From: Orlando, FL, USA
Status: offline
For the price of those DA I'd think the factory should triple check that

_____________________________

Keep your wings level
Club Saito Member #693

Hide Signatures

(in reply to orthobird)
       Post #: 6203

RE: Larger Revolver - 12/24/2012 5:32 PM   
Luchnia


 

Posts: 1791
Score: 193
Joined: 5/17/2009
Last Login: 6/19/2013
From: Amelia, VA, USA
Status: offline

quote:

ORIGINAL: Sbach342Guy

The fuse is damaged from having the landing gear ripped out. The landing gear is mounted to two aluminum l-brackets which are mounted inside the fuse. Oddly enough the aluminum was stronger than the ply in the fuse. It tore up the inside of the fuse pretty bad. I'll post pics in a bit.


I think this is characteristical of the higher price and quality airplanes. My EF Extra 88" has aluminum brackets build into the fuselage probably much like you have. This is what a good quality built plane is like. I think other manufacturers could do this with minimal cost too, or make it an option.

You must have hit that extremely hard as I cannot imagine what it would take to break that gear section out. I know my EF can pretty much fall out of the sky on the ground and not damage that setup! Maybe when you rebuild go in the area of the adjoining wood and do some thinned epoxy or thinned glue of your choice and do some strengthening.



Hide Signatures

(in reply to Sbach342Guy)
       Post #: 6204

RE: Larger Revolver - 12/24/2012 7:10 PM   
VictoryRoll



Posts: 251
Score: 100
Joined: 5/7/2008
Last Login: 6/19/2013
From: Norfolk, MA, USA
Status: offline
HI Bill (wjc) !

  What a great reply you to my last post/questions, and yes, there were a lot of moving parts to it.  I appreciate you taking the time to answer each one, effectively & clearly..   Very informative, and I love formulas and math, as I am a Mech. Eng., as well as a Computer Eng.... anyway, I appreciate your wisdom and help.

On the misaligned (from factory) pins on each wind panel... "not gonna do it !" (GHW Bush)     I called the store and it will be back on the UPS truck either late today, probably Wedns.   It is definately a mfr's. defect, and I should not be expected to correct that, as I am sure most of us would agree.   I do have an incidence meter and could correct, but, not something I wish to do on an ARF.   Additionally, some of the hardware bags were opened, and I suspect some items may be missing.   I also suspect that this box/unit was probably delivered to another person, they found misaligned pin defect, sent it back, and it must have gotten mixed up with the new boxes, instead of the return to mfr. boxes/lot.

Not really happy about that, but at this time of the year, I think they are allowed a mulligan on this one.  Nt cost to me, just a week to 10 days more before I get to play with it, but that will give me time to get my new PSP Mfg. engine test stand, and start my breaking-in of the Saito 100.    I have a wood test stand now, and it will not handle the 100, so I get to spend more money...

I plan on doing the same with replacing CA hinges w/ the Robart 1/8th's. to all control surfaces.  I pretty much use same method as you, and I too had trouble with the Gorilla glue.   Changed it to epoxy as well.   Question:  Do you stay clear of the area in the two edges where the old half of the CA hinge is still imbedded in the edge, or do you just drill straight through them if that is the location you desire?    Do you believe that I should use 6 hinges per control surface w/ this setup?   I am a person like yourself, that beleieves in going over the recommended/typical install requirements, like you stated for servos torque, I do the same, so I am thinking of following your lead/suggestion on the number of the 1/8th Robarts.  Do you agree?

Thanks for everything Bill!

Merry Christmas,


Don



_____________________________

AMA#905932
Club Saito Member #691

Hide Signatures

(in reply to wjcalhoun)
       Post #: 6205

RE: Larger Revolver - 12/24/2012 10:16 PM   
wjcalhoun


 

Posts: 805
Score: 110
Joined: 12/25/2008
Last Login: 6/19/2013
From: League City, TX, USA
Status: offline
Hi Don
I avoid the areas that had CA hinges in them, because it is very hard, and the drill bit tends to wander off if one tries to drill into it. The specific location along the aileron, or rudder, or elevator, is not so consequential in my opinion, so i place the hinge where i know i can get a clean hole in the direction i want it to go.

I built my R70 with 5 per surface, and I had a failure at the outboard edge (gorilla glue) during a KE spin. Might not have happened with epoxy.

As i look at bigger birds (my 3 50cc planes for example) the outboard end, and inboard end hinges are doubled - maybe 2-3" apart, and the other two or three are spaced out along the control surface. Honestly, I think 5 equally spaced robarts would be fine if installed properly with 30 min epoxy, but if you want 6, that would be fine also; not much weight.

I think you are probably correct to send the airframe back; if the AR pins are misaligned, one might wonder whether the builder got other frame members out of place in the construction jig, and the plane may be out of true elsewhere also.

Best,
Bill


Hide Signatures

(in reply to VictoryRoll)
       Post #: 6206

RE: Larger Revolver - 12/24/2012 10:17 PM   
Sbach342Guy


 

Posts: 431
Score: 100
Joined: 12/8/2006
Last Login: 6/13/2013
From: STEWARTSTOWN, PA, USA
Status: offline
It was a dead stick landing. Plane bounced back up 6' or so and come back down at a 45 degree angle...right on the gear. I didn't expect it to carry quite so much speed considering how far out I was when the engine died. I was running out of runway and had to bring her down. Much better than a total loss.

Hide Signatures

(in reply to VictoryRoll)
       Post #: 6207

RE: Larger Revolver - 12/24/2012 10:19 PM   
SigMan



Posts: 1033
Score: 110
Joined: 6/27/2004
Last Login: 6/10/2013
From: Boonville, IN, USA
Status: offline
sorry to hear about your loss. getting ready to start on mine soon. post some pics if you can. thanks.

_____________________________

Club Saito Member #1
AMA# 542304

Hide Signatures

(in reply to Sbach342Guy)
       Post #: 6208

RE: Larger Revolver - 12/24/2012 10:46 PM   
Ernie Misner



Posts: 4673
Score: 130
Joined: 7/5/2002
Last Login: 6/12/2013
From: Tacoma, WA, USA
Status: offline
On my smaller planes I have used 1/4-20 nylon bolts for the landing gear. They nylon bolts would give way before it would break out the fuse. There might be a way of doing that on the larger planes?

Hide Signatures

(in reply to SigMan)
       Post #: 6209

RE: Larger Revolver - 12/24/2012 11:52 PM   
Sbach342Guy


 

Posts: 431
Score: 100
Joined: 12/8/2006
Last Login: 6/13/2013
From: STEWARTSTOWN, PA, USA
Status: offline

quote:

ORIGINAL: Ernie Misner

On my smaller planes I have used 1/4-20 nylon bolts for the landing gear. They nylon bolts would give way before it would break out the fuse. There might be a way of doing that on the larger planes?


I'd worry about how much more damage you might do. One of the times I ripped the gear out of the Revolver the stabs were both torn in half by the gear.

Hide Signatures

(in reply to Ernie Misner)
       Post #: 6210

RE: Larger Revolver - 12/25/2012 3:05 AM   
microdon2


 

Posts: 1691
Score: 110
Joined: 4/19/2009
Last Login: 6/17/2013
From: Whitestone, NY, USA
Status: offline
I agree with SBach. Letting the gear rip off may cause more damage. Build it strong enough and you'll never worry about your gear again.

Hide Signatures

(in reply to Sbach342Guy)
       Post #: 6211

RE: Larger Revolver - 12/25/2012 6:26 AM   
Ernie Misner



Posts: 4673
Score: 130
Joined: 7/5/2002
Last Login: 6/12/2013
From: Tacoma, WA, USA
Status: offline
The nylon bolts do work great on smaller planes. I'm sure you are right that a system like isn't workable for large gassers although it would be more along the line of aluminum bolts. As Murphy would have it I don't think I ever had a real hard landing after going to the nylon bolts on those planes.

Hide Signatures

(in reply to microdon2)
       Post #: 6212

RE: Larger Revolver - 12/25/2012 11:58 AM   
lopflyers


 

Posts: 1221
Score: 140
Joined: 6/21/2010
Last Login: 6/18/2013
From: Orlando, FL, USA
Status: offline
Ho ho ho, Merry Christmas Club Revolver

_____________________________

Keep your wings level
Club Saito Member #693

Hide Signatures

(in reply to Ernie Misner)
       Post #: 6213

RE: Larger Revolver - 12/25/2012 1:35 PM   
Luchnia


 

Posts: 1791
Score: 193
Joined: 5/17/2009
Last Login: 6/19/2013
From: Amelia, VA, USA
Status: offline
With over 6000 post in this thread one would think the Rev 70 is a popular bird!

Hide Signatures

(in reply to lopflyers)
       Post #: 6214

RE: Larger Revolver - 12/25/2012 2:32 PM   
ahicks


 

Posts: 1912
Score: 669
Joined: 8/10/2008
Last Login: 6/19/2013
From: Waterford, MI, USA
Status: offline
Ya Think? Love this place! Yes, we wander around topic wise on occasion, but there's so much wisdom collectively it's hard not to! Very upbeat place to visit! Glad to be a part of this.

Merry Christmas guys!
-Al

Hide Signatures

(in reply to Luchnia)
       Post #: 6215

RE: Larger Revolver - 12/25/2012 3:53 PM   
mike early



Posts: 2077
Score: 125
Joined: 10/28/2007
Last Login: 6/18/2013
From: Ashland, KY, USA
Status: offline
I wonder if a YS 140 sport would work in this plane

_____________________________

Saito Club Member #578
P-40 Brotherhood #62

Hide Signatures

(in reply to ahicks)
       Post #: 6216

RE: Larger Revolver - 12/25/2012 5:14 PM   
microdon2


 

Posts: 1691
Score: 110
Joined: 4/19/2009
Last Login: 6/17/2013
From: Whitestone, NY, USA
Status: offline
Oh, it does. Awesome power and that fantastic YS 4s sound. Sucks up the Nitro, though...

Hide Signatures

(in reply to mike early)
       Post #: 6217

RE: Larger Revolver - 12/25/2012 9:09 PM   
orthobird


 

Posts: 593
Score: 105
Joined: 12/2/2011
Last Login: 6/12/2013
From: shreveport, LA, USA
Status: offline
She had her maiden yesterday.  required few clicks for ailerons and elevator trim, then she flew level.  Really stable plane. 

_____________________________

avoid crashing!!

Hide Signatures

(in reply to lopflyers)
       Post #: 6218

RE: Larger Revolver - 12/26/2012 1:40 AM   
lopflyers


 

Posts: 1221
Score: 140
Joined: 6/21/2010
Last Login: 6/18/2013
From: Orlando, FL, USA
Status: offline
Ortho, are you talking about the beast? 40% Extra? Did the DA iddle after all? Did you fly her at the field or at the private strip? I'm as excited as you .

_____________________________

Keep your wings level
Club Saito Member #693

Hide Signatures

(in reply to orthobird)
       Post #: 6219

RE: Larger Revolver - 12/26/2012 11:57 AM   
orthobird


 

Posts: 593
Score: 105
Joined: 12/2/2011
Last Login: 6/12/2013
From: shreveport, LA, USA
Status: offline
Yes, it was.  what a sight. it is still playing in my head like a movie.  i flew her at the club, there must have been about 30 spectators/pilots.  did it ever idle.  i got her iddling at about 900 rpm.  i brought my tach this time.  WOT she was at 6000 rpm with a carbon fibre prop that was 32 inch diameter with a 10 pitch.

on the runway, i started at 1/4 throttle, once she was straight, i kicked it to 1/2 throttle and her tail picked up and then she lifted.  i mmediately, i noticed she had tendency to want to roll to right and she wanted to climb, so i brought her up real  high while i used my right hand to adjust the stick to compensate for this.  once she was up high, i started to use trim, after 3 clicks for aileron and 3 for elevators, she was tracking straight.

i then flew her level for at least 2 minutes, just basic box pattern of flight.  once i felt comfortable with her, and i was not shaking as much, i turned on the smoke pump and did a large diameter loop, where the smoke trail met each other.  then i did several low fly by's and rolls.  did a few knife edge with her real high, trying to see how much rudder i needed and seeing if she would drop from sky.

after this, which took total of less than 6 minutes, i said, i am going to land this baby.

did about 3 passes before finally deciding to land her, which was not a perfect landing, she was losing altitude fast at about 10  feet above runway, and i did pull back on elevator, but she bounced once.  she did not have enough speed, and was stalling.  i did not want to throttle her as i knew she may then flare high again.  once on the ground, i was then able steer her back into flight pit lane.  then i used kill switch to turn her off, and i began ispection process.  no damage to her.

amazingly, the 52 ounce tank of gas was almost completely empty.  don't think i would have made it had i tried one more go around to land her!! ouch!!!  lucky me!
oce on ground, i noted that the elevators looked fine in the position they were in.  don't know why she wanted to climb so much, but i had to give few clicks of down elevators.  must be that i had the elevator neutral position with up elevator too much.

the rolling, i noticed that the right aileron position was lower than the root wing TE, and the left aileron was higher than the root wing TE.  meaning, in this position, the left roll position was to counter her tendency to want to roll right.  but then i did notice that the rudder was not in line.  so i wonder if i could have adressed the roll with the rudder.

last night, i put her in the garage, and i split the ailerons within the receiver.  there are 2 right ailerons servos and 2 on the left.  all 4 were connected to the smartfly, where two were reversed and all 4 were equalized.  so now, i put the left aileron on aux 3.  and using my transmitter, i can adjust the right and left ailerons separately.

then using subtrim, i adjusted the rudder, and i have made both ailerons even with root of the wing TE.

let's see if she still wants to roll right on flight number 2.  now if i remember correctly, if the plane rolls left, this could be an engine thrust problem.  my bird has about 3 degrees right thrust angle built in to engine dome.  maybe it is too much and this is causing it to roll right?

to be continued......


btw, are any of the revolver gang going to go to Joe Nall?


_____________________________

avoid crashing!!

Hide Signatures

(in reply to lopflyers)
       Post #: 6220

RE: Larger Revolver - 12/26/2012 12:02 PM   
orthobird


 

Posts: 593
Score: 105
Joined: 12/2/2011
Last Login: 6/12/2013
From: shreveport, LA, USA
Status: offline
check out my latest post!!  LOL 

_____________________________

avoid crashing!!

Hide Signatures

(in reply to Ernie Misner)
       Post #: 6221

RE: Larger Revolver - 12/26/2012 12:18 PM   
Luchnia


 

Posts: 1791
Score: 193
Joined: 5/17/2009
Last Login: 6/19/2013
From: Amelia, VA, USA
Status: offline
Good to see that maiden went well. Amazing you used that much fuel

I am really considering going to Nall in 2013 and it would be my first time. I know several folks from my club have been numerous times, but I have yet to make it. Maybe 2013 will be the year!

Hide Signatures

(in reply to orthobird)
       Post #: 6222

RE: Larger Revolver - 12/26/2012 2:16 PM   
orthobird


 

Posts: 593
Score: 105
Joined: 12/2/2011
Last Login: 6/12/2013
From: shreveport, LA, USA
Status: offline
 I have never been eeither and I calculate it is a 10 hour drive
not too bad.
i may do it also

_____________________________

avoid crashing!!

Hide Signatures

(in reply to Luchnia)
       Post #: 6223

RE: Larger Revolver - 12/26/2012 2:21 PM   
lopflyers


 

Posts: 1221
Score: 140
Joined: 6/21/2010
Last Login: 6/18/2013
From: Orlando, FL, USA
Status: offline
Wow, you have to video that for us!

_____________________________

Keep your wings level
Club Saito Member #693

Hide Signatures

(in reply to orthobird)
       Post #: 6224

RE: Larger Revolver - 12/26/2012 5:26 PM   
wjcalhoun


 

Posts: 805
Score: 110
Joined: 12/25/2008
Last Login: 6/19/2013
From: League City, TX, USA
Status: offline
Ortho:
The engine is a DA-100?
One might expect fuel consuption of about 2 oz / min / 50cc, or 4 oz/min if i remember your engine right, which should give you 13 min at WOT.

It sounds like you are using twice that. I might check for leaks. Or maybe i am misremembering the engine; if it is a 200-220, might be about right.



Hide Signatures

(in reply to orthobird)
       Post #: 6225

Page:   <<   < prev  247 248 [249] 250 251 252 253 254 255 256   next >   >>  
All Forums >> RC Airplanes >> ARF or RTF >> RE: Larger Revolver
Page: <<   < prev  247 248 [249] 250 251 252 253 254 255 256   next >   >>  





Jump to:


 
Google 



Search | Marketplace | Event Calendar | Local Clubs | Magazine | Product Ratings | New Products | Discussion Forums

Photo Gallery | Instructor Search | Field|Track|Marina Search

Advertisers | Hobby Vendor Resources | Rate Manufacturers | Sign In/Sign Up

SITE MAP!   : :   FORUM RULES

RC Universe is a service of Internet Brands, Inc. Copyright © 2001-2013.

Charities we support that also need your help
Yorkie Rescue | Humane Society | ASPCA | Crohn's-Colitis America


0.686RCU1