RE: ThunderTiger Rare Bear    Gallery
View related threads: (in this forum | in all forums)

Tower Hobbies
Enter up to 4 keywords or Tower stock numbers
Logged in as Guest



Users viewing this topic: none
    Search This Thread  
 
Printable Version

All Forums >> RC Airplanes >> ARF or RTF >> RE: ThunderTiger Rare Bear
Page: <<   < prev  36 37 [38] 39 40 41 42 43 44 45   next >   >>  

Login
Message << Older Topic   Newer Topic >>
RE: ThunderTiger Rare Bear - 4/12/2005 2:50 AM   
DagoNbr6


 

Posts: 57
Score: 100
Joined: 10/13/2002
Last Login: 4/22/2007
From: NV
Status: offline 		Did you get your gear doors. He brought them out all fixed up. If not he must have forgotten to give them to you.

Hide Signatures

(in reply to Desert Toad)
       Post #: 926

RE: ThunderTiger Rare Bear - 4/12/2005 3:26 AM   
rocketman-RCU


 

Posts: 129
Score: 100
Joined: 1/15/2002
Last Login: 9/5/2010
From: Lawrence, KS, USA
Status: offline 		Hi Guys. I have been reading most of this thread since the beginning. I have the Bear with a Thunder Tiger 1.20. CG was slightly nose havy with this engine and Robart gear and struts. I had the stab failure on the first flight and reinforced the stabs and gear blocks. My biggest problem is that I cannot seem to get rid of the elevaator flutter; I even did the epoxy block rebuild where the horns enter the fuse. I finally added rubber band bungees at both ends of my fiberglass elevator arrow shaft. Nothing helps, it will flutter at 30% throttle with the gear still down. Anymore ideas as to the cause of this flutter. Only thing I have not done is install gap seals although the gaps are fairly small.

Hide Signatures

(in reply to DagoNbr6)
       Post #: 927

RE: ThunderTiger Rare Bear - 4/12/2005 3:44 AM   
Desert Toad



Posts: 266
Score: 100
Joined: 11/6/2002
Last Login: 8/8/2010
From: Lovelock, NV, USA
Status: offline 		Dago, no gear doors yet, how did they look?

He might be holding them ransom for a long story christmas present....but I haven't forgotten. Your Jett Dago ready to roll again - 6th annual Mother's Day fly-in is fast approaching!

DT

Hide Signatures

(in reply to rocketman-RCU)
       Post #: 928

RE: ThunderTiger Rare Bear - 4/12/2005 4:01 AM   
Itzdzworld


 

Posts: 44
Score: 100
Joined: 4/9/2003
Last Login: 5/27/2009
From: Pearland, TX, USA
Status: offline 		I now have a new R/B I am putting the elevator servos (2) in the tail of this piece o crap. I think that there is to much Pressure in that area It's got to be a design flaw. One that we as experienced modelers (HAAHAHAHAH) have to work for ourselves. I have written Thunder Tiger 3 times without response from them. I use the motto " If more than 3 people of whom don't know each other tell you the same story of any particular issue there may be something to it (There are alot more than 3). I am telling anyone out there if you don't want dissapointment don't buy Thunder Tiger Products. If you want a major challange to over come several design flaws by the company who made the product. BUY A THUNDER TIGER RARE BEAR,,


HEY THUNDER TIGER DON'T BACK YOUR PRODUCTS, THAT IS A REAL GOOD BUSINESS PRACTICE.... YEAH, YEAH THATS THE TICKET?

Hide Signatures

(in reply to rocketman-RCU)
       Post #: 929

RE: ThunderTiger Rare Bear - 4/12/2005 4:12 AM   
Desert Toad



Posts: 266
Score: 100
Joined: 11/6/2002
Last Login: 8/8/2010
From: Lovelock, NV, USA
Status: offline 		Hey Itzdz, I feel pretty much the same way about their "customer" service.

But I would also like to note the fact that you are still putting a Bear together................

Hide Signatures

(in reply to Itzdzworld)
       Post #: 930

RE: ThunderTiger Rare Bear - 4/12/2005 4:41 PM   
rare_bear



Posts: 1259
Score: 100
Joined: 3/20/2003
Last Login: 9/2/2010
From: north of the basin, CA, USA
Status: offline 		But it would sure make a beautiful static display model to hang in your bathroom for you to admire every morning and evening

(and just think how fast the kit could go together with no modifications whatsoever)



[ducking]

Hide Signatures

(in reply to Itzdzworld)
       Post #: 931

RE: ThunderTiger Rare Bear - 4/12/2005 5:08 PM   
JWORTNER



Posts: 93
Score: 100
Joined: 10/25/2002
Last Login: 6/23/2008
From: Tampa, FL, USA
Status: offline 		Rocketman,

I have done a lot to my stab (all documented in previous pages of this thread) but have been flying it rock solid for some time now with with on OS 160 with no problems at all.

THe first thing I did was get rid of that goofy elevator pushrod. I mounted one high torque in the tail and made a forked linkage. It is only about 3 inches long and leaves little room for play. There is a pic of it some pages back.

Don't think you need two as the previous post suggested, this plane is real tail heavy to begin with.

Also, definatly need to seal the hinge gaps.

Hide Signatures

(in reply to rocketman-RCU)
       Post #: 932

RE: ThunderTiger Rare Bear - 4/12/2005 7:29 PM   
Rbeav533


 

Posts: 109
Score: 100
Joined: 11/7/2004
Last Login: 8/29/2010
From: Spring, TX, USA
Status: offline
quote:

ORIGINAL: Itzdzworld

If you want a major challange to over come several design flaws by the company who made the product.


As a long time Scale builder I didn't experience any "Major Challenges" in correcting design deficiencies. Sure there are problems with the product as it comes out of the box. However IMO, I don't believe some of these problems (horizontal stab) would be an issue, if we as assemblers, weren't significantly over powering these models. The lack of glue and inadequete reinforcement of the landing gear blocks is a definate trouble area that TT should address. However one must also consider that Ace is the distributor that provided the Alpha/Beta testing of the product before it was released to the public. The pre-production kit that Ace assembled and tested may have had a higher level of build quality than the initial production versions that first hit the consumer market. If this was in fact the case, there's no way one could fault Ace for the poor quality of the production kits. But Ace as the distributor for Thunder Tiger SHOULD be putting pressure on TT to correct their production processes to ensure that the kit doesn't prematurely fail in flight or suffer other issues such as langing gear damage when built per the instruction manual.

In retrospect, there was an article in the March issue of the AMA magazine that indicates a large number of R/C fliers today are simply ARF fliers and have little to no building experience. I just recently joined an R/C club in my area and noticed the same thing. We have a larger group of ARF and electric flyers than we do builders in my club. If one of these ARF flyers were to attempt to assemble the Rare Bear kit, I can understand how they might be somewhat overwhelmed. I would not classify the Rare Bear as an ARF, there needs to be a classification that falls somewhere between ARF and kit built. The disclaimer on the box indicating the model requires ADVANCED modeling skills is too small and easily overlooked.

Rich




Hide Signatures

(in reply to Itzdzworld)
       Post #: 933

RE: ThunderTiger Rare Bear - 4/12/2005 7:39 PM   
Rbeav533


 

Posts: 109
Score: 100
Joined: 11/7/2004
Last Login: 8/29/2010
From: Spring, TX, USA
Status: offline 		I finally finished my Rare Bear and have tried over the past two weekends to trim fly but it wasn't meant to be.

The first weekend I couldn't get a needle on the engine. I never could get the engine to enter a rich 4-stroke, only a slightly rich (with about 1 turn the needle) setting. Thinking I had some sort of fuel line/clunk restrictions, I purchased a new fuel tank and fuel tubing, all with 1/8" ID diameter tubing. Last weekend I tried again on Saturday, still couldn't get a needle, that's when I discovered carbuerator problems. For some reason the stock carb wouldn't deliver enough fuel to get a rich mixture setting (ASP 1.08 Redhead) . Saturday evening I installed an O.S. 7B carb from an old runout O.S. 1.08 in place of the stock ASP carb. SUCCESS !!! I was able to get a nice rich 4-stroke setting, perfect idle mixture with very smooth transisition from idle to full throttle. There's something magical about O.S. carbs, they seem to work, even on non O.S. applications. Anyway, Sunday we tried again, but Mother Nature conspired in the form of 15 mph winds, gusting to in excess of 20 mph. I'll give it a try this upcoming weekend, weather permitting, and report back about the outcome of the test flight.

Rich

Hide Signatures

(in reply to Rbeav533)
       Post #: 934

RE: ThunderTiger Rare Bear - 4/13/2005 2:17 AM   
DagoNbr6


 

Posts: 57
Score: 100
Joined: 10/13/2002
Last Login: 4/22/2007
From: NV
Status: offline 		They must have forgotten to give them to you. I'll hunt them down for you. Since they're to long to put on a Dago. The Vegas odds are already in for Sept. Dago's a 2 to 1 favorite.

Hide Signatures

(in reply to Desert Toad)
       Post #: 935

RE: ThunderTiger Rare Bear - 4/13/2005 2:44 AM   
hattend



Posts: 2259
Score: 100
Joined: 11/29/2001
Last Login: 9/5/2010
From: Redding, CA, USA
Status: offline
quote:

ORIGINAL: DagoNbr6

They must have forgotten to give them to you. I'll hunt them down for you. Since they're to long to put on a Dago. The Vegas odds are already in for Sept. Dago's a 2 to 1 favorite.


Fool's bet...Dago retired, won't be at Reno this year.

Don
Go Bear


_____________________________

Revver Brother #94

Hide Signatures

(in reply to DagoNbr6)
       Post #: 936

RE: ThunderTiger Rare Bear - 4/13/2005 3:02 AM   
Desert Toad



Posts: 266
Score: 100
Joined: 11/6/2002
Last Login: 8/8/2010
From: Lovelock, NV, USA
Status: offline 		What do you expect, Don - If they won't let him cheat, he doesn't want to play!

Hide Signatures

(in reply to hattend)
       Post #: 937

RE: ThunderTiger Rare Bear - 4/13/2005 3:08 AM   
hattend



Posts: 2259
Score: 100
Joined: 11/29/2001
Last Login: 9/5/2010
From: Redding, CA, USA
Status: offline
quote:

ORIGINAL: Desert Toad

What do you expect, Don - If they won't let him cheat, he doesn't want to play!



Hehehehehe...good one!

Don

_____________________________

Revver Brother #94

Hide Signatures

(in reply to Desert Toad)
       Post #: 938

RE: ThunderTiger Rare Bear - 4/17/2005 7:29 AM   
Wild Bill D


 

Posts: 1
Score: 100
Joined: 4/17/2005
Last Login: 4/17/2005
From: , NY, USA
Status: offline 		Well, the weather finally broke up hear in the north east and things dried up enough to test fly my Bear today. I've been following this thread since the beginning and I have to admit that I was a little nervous about the first flight after hearing about all the problems and pros and cons ect...
Engine..G-23
Retracts..Springair
Radio.. Futaba
Weight..Heavy
CG..Slightly Conservative
Prop..16-8 3 blade
Construction.. Did not use battery holder and such just flat firewall.Painted a little extra epoxy on parts and landing gear blocks ect. Located rudder and elevator servo in tail.

This airplane flew great. Looks great in the air too! It wanted to climb so what... so I just trimmed it down a bit .
No bad characteristics that I can see.. Landed soft with very little head wind. Fast even at part throttle. Our field is small and grass.. I believe it will do anything you ask of it.. Cant wait to fly it again.
I think ill seal the gaps.. other than that Im just gonna fly it..
Good Luck

Hide Signatures

(in reply to Al Magaloff)
       Post #: 939

RE: ThunderTiger Rare Bear - 4/18/2005 1:09 PM   
JWORTNER



Posts: 93
Score: 100
Joined: 10/25/2002
Last Login: 6/23/2008
From: Tampa, FL, USA
Status: offline 		WildBill,

I flew mine 2 times with no problems. On the 3rd flight we heard a noise as it went by. When I brought it in, under very close inspection, we found that the stab was beginning to come off. If you have been following the thread you have seen the pics.

Anyway, point being that if you did not beef up the stab, keep a very close eye on it. Mine seemed fine at first too.

Maybe you're lucky and got one where there is good glueing from ribs to sheeting.

And yes, the plane does fly real good. I love mine. I't knife edges like a dream.

Mine climbed to and I just trimmed it down. To compensate at low speed for landing, I mixed a little up in when my gear go down.

Hide Signatures

(in reply to Wild Bill D)
       Post #: 940

RE: ThunderTiger Rare Bear - 4/18/2005 1:51 PM   
THESCALEMAN


 

Posts: 313
Score: 100
Joined: 12/9/2002
Last Login: 7/20/2010
From: huntingdon, , UNITED KINGDOM
Status: offline 		hi guy's

have flown mine 3 times now.....fly's great...until landing.....not so good.....first time around retracts ripped out of wing....wasn't that fast approach either.....on examining the retract mounts...found the ply wasn't glued together just tacked!!......glued the bearers back in....had the last 2 flights yesterday...again flew very well......hands off no problem......landing..same as above ripped thge retracts out.....some serious re-design needed in that area....i noticed one of the ends of the mounts is glued to balsa......yes balsa...not going to last 5 minutes....if th eplane didn't fly well it would have ended up in the bin!!!...but i like it.....anyone else replaced the mounts etc?......doesn't help flying off grass....but still should hold up.....weight around 10.75lbs.....had to add 8 ozs of lead after the first flight....made a massive difference...

dave

_____________________________

stairway to heaven

Hide Signatures

(in reply to JWORTNER)
       Post #: 941

RE: ThunderTiger Rare Bear - 4/18/2005 2:18 PM   
Frag



Posts: 285
Score: 100
Joined: 5/27/2003
Last Login: 5/3/2010
From: Fayetteville, GA, USA
Status: offline 		Your retract mounts ripped out?! No way!!

Just joking....its been well documented in this thread as a problem needing reinforcement...look back and there is a bunch of info on how to fix several problems with the Bear before flying....

Hide Signatures

(in reply to THESCALEMAN)
       Post #: 942

RE: ThunderTiger Rare Bear - 4/18/2005 4:09 PM   
THESCALEMAN


 

Posts: 313
Score: 100
Joined: 12/9/2002
Last Login: 7/20/2010
From: huntingdon, , UNITED KINGDOM
Status: offline 		thanks.....i'll look back.......

dave

_____________________________

stairway to heaven

Hide Signatures

(in reply to Frag)
       Post #: 943

RE: ThunderTiger Rare Bear - 4/18/2005 8:56 PM   
Rbeav533


 

Posts: 109
Score: 100
Joined: 11/7/2004
Last Login: 8/29/2010
From: Spring, TX, USA
Status: offline 		I too, did a test flight this past Saturday. It took about 2 hours to chase the Gremlins out of my RB into another scratchbuilt oddity that did CRASH. Anyway, my initial test flight went well, like the others the RB wanted to climb. I found the plane to be sensitive in pitch and believe a little more nose weight will calm things down. Otherwise a very nice first flight until landing. The landing was done deadstick, the RB glides very well. Initial touch down was done a little too fast, as I let the tail down the RB balloned back into the air. A little quick down elevator salvaged that and the second touchdown was too hard and rolled the front gear mount out of the right wing. During the repair work Saturday evening, I found that when I reinforced the gear mounts I didn't get enough epoxy onto the front right gear block. It's all together again, but other committments prevented a Sunday attempt.

Just to remind everyone, I had made two additional mods to my RB. I reduced the amount of down thrust and right thrust from the stock settings by 1/2. During the test flight I had 2 degrees of downthrust and 1 degree of right thrust (measured with Robart Incidence Meter). The reduction of right thrust didn't have any impact on the amount of right trim needed for hands off flight in roll, about 3 clicks of right aileron and two clicks of right rudder. Since I only have one flight I can't be certain I have the elevators or ailerons rigged perfectly. If one elevator is very slightly off, it will induce a roll which I'm taking out with the combination of rudder and aileron trims. I also don't know if reduction of the downthrust had any significant impact. In preperation for the next flight I've added back in half of the downthrust I removed, I'll have 3 degrees of downthrust for the next flight. I'll report back what impact the increase in downthrust has, if any, on the pitch trim and pitch sensitivity. My hope is pitch trim will be less touchy and less down elevator will be needed for trim flight.

Overall I'm very impressed with the flight characteristics. The RB is fast and has great presence in the air. One odd thing I noticed, my RB whistles like a Stuka while in flight. I think it might be due to either the oil coolers openings in the wing roots, or possibly the fit of the upper fuselage/cockpit. The whistling doesn't bother me, in fact it's kind of cool.

Rich

Engine..ASP 1.08 Redhead w/O.S. 7B carb and Bisson Muffler
Retracts..Springair
Radio.. JR
Weight..10.5-11 lbs (WAG)
CG..Very slightly tail heavy
Prop..14-7 3 blade



Hide Signatures

(in reply to THESCALEMAN)
       Post #: 944

RE: ThunderTiger Rare Bear - 4/18/2005 9:23 PM   
Desert Toad



Posts: 266
Score: 100
Joined: 11/6/2002
Last Login: 8/8/2010
From: Lovelock, NV, USA
Status: offline 		Just a note, I also removed some of the downthrust of my mounts as well.

The exact measurement is two(2) washers each side on the top.

DT

Hide Signatures

(in reply to Rbeav533)
       Post #: 945

RE: ThunderTiger Rare Bear - 4/18/2005 9:45 PM   
THESCALEMAN


 

Posts: 313
Score: 100
Joined: 12/9/2002
Last Login: 7/20/2010
From: huntingdon, , UNITED KINGDOM
Status: offline 		hi me again.......mine has factory settings on down and side thrust and she flew well.....didn't want to climb at all.....must be luck of the draw.....have now chopped the retract bay clean of everything....nothing like starting again.....using 1/4" light ply and 1/2"x3/8" beech mounts...all of the old plywood gone...now using heavy duty wires (6gauge) not the 8 supplied, 3" skylight wheels....added about 4ozs to total weight.....i'lll post my progress if you guy's are interested...first i need to draw up the orignal retract formers in AutoCad, then re-position the new beech bearers....with slighty more angle forward so that the wheels are over the leading edge......this is experience from my scale days......hopefully all these mods will help.

dave

_____________________________

stairway to heaven

Hide Signatures

(in reply to Desert Toad)
       Post #: 946

RE: ThunderTiger Rare Bear - 4/18/2005 10:35 PM   
hattend



Posts: 2259
Score: 100
Joined: 11/29/2001
Last Login: 9/5/2010
From: Redding, CA, USA
Status: offline
quote:

i'lll post my progress if you guy's are interested...


I'm interested...post away!

Don

_____________________________

Revver Brother #94

Hide Signatures

(in reply to THESCALEMAN)
       Post #: 947

RE: ThunderTiger Rare Bear - 4/19/2005 7:45 PM   
Datahazard


 

Posts: 6
Score: 100
Joined: 10/14/2004
Last Login: 8/1/2007
From: Washington, NJ, USA
Status: offline 		I have to say, it would have been a good idea to come to this forum before flying my rare bear. The stabalizer failed on flight three at 3/4 throttle power doing a gradual climbing turn. It wasn't long before it went into a dive I couldn't get it out of with absolutely no elevator control and hit the ground with the throttle all the way back. Anyone else wondering why thunder tiger doesn't even list this airplane on thundertiger.com? I wrote a detailed description of the flights in the user review section for the Rare Bear, have some pix before and after too.

Hide Signatures

(in reply to pajaro)
       Post #: 948

RE: ThunderTiger Rare Bear - 4/19/2005 7:56 PM   
JWORTNER



Posts: 93
Score: 100
Joined: 10/25/2002
Last Login: 6/23/2008
From: Tampa, FL, USA
Status: offline 		Man, what a bummer. Sorry to hear that. Yes, after this plane I learned a lesson to always come to RCU before even buying a plane. I still almost lost mine because at the time they just talked about being carefull glueing the stab on, which I did. Mine still started to come apart and luckily I got it down. We have since learned that the ribs are not glude to the skin well, and in my opinion the front cross tube is too short and needs to extend to the next spare. Others have had the trailing edge rip out.

I know my mods work, because I have about 100 flights now with no problems. I also had a dead stick and put it down in thick brush and the stab took a hard hit and broke the leading edge. Everything else was fine thought and just repared the LE and patched with ultracote and back in the air the next day. My stab is like the rock of gilbralter!!!

So if you are building a RB and want to be sure, go back and look for my posts.

Hide Signatures

(in reply to Datahazard)
       Post #: 949

RE: ThunderTiger Rare Bear - 4/19/2005 8:11 PM   
hattend



Posts: 2259
Score: 100
Joined: 11/29/2001
Last Login: 9/5/2010
From: Redding, CA, USA
Status: offline 		Well, your review is the most thorough, good job.

Sorry to hear about your RB. Looks like when I finally get around to building mine (not any time soon it appears) I'll be cutting foam stab cores and redoing the Landing gear. Or maybe doing JWORTNER's mods, whatever I am in the mood to do at the time.

I wonder if TT is still saying they have heard nothing bad about the ARF?

Don

_____________________________

Revver Brother #94

Hide Signatures

(in reply to Datahazard)
       Post #: 950

Page:   <<   < prev  36 37 [38] 39 40 41 42 43 44 45   next >   >>  
All Forums >> RC Airplanes >> ARF or RTF >> RE: ThunderTiger Rare Bear
Page: <<   < prev  36 37 [38] 39 40 41 42 43 44 45   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

© 2001 - 2007 24-7 RC, LLC, all rights reserved.

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


2.141RCU1