RE: CMP 160 sized Texan  
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RE: CMP 160 sized Texan - 6/2/2008 5:19:35 PM   
RCPILOT78


 

Posts: 276
Joined: 4/20/2005
From: new port richey, FL, USA
Status: offline 		DAVE ...... your right about the Zenoah engines they are great....as far as the elevator control rod is concerned your also right I had to modify the system at the elevator connections its going to be difficult to explain , I would need to send you a picture but I can't get in the fuse to photograph..all I can say is their system is too flimsey..I had to use plywood gussets epoxied to the wire ( Y ) bends to strengthen them... and also used heavier threaded wire back there... I used their system but beefed it up GOOD LUCK with your build I have been flying my at-6 for over a year now almost 180 flights on her and still enjoying it...

(in reply to mystar46)
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RE: CMP 160 sized Texan - 6/2/2008 5:39:02 PM   
RCPILOT78


 

Posts: 276
Joined: 4/20/2005
From: new port richey, FL, USA
Status: offline 		GUAIO....... What I use for vibration dampening mounts can be found at ACE hardware...they are 1/4 -20 rubber bushings with a brass threaded insert ,,they work great, their about a 1/2 inch in diameter and are ready for a 1/4-20 bolt...on most firewalls the wood is thick enough that the bushing does not protrude out the back but on the t6 the fire wall is thinner so I use rubber o-rings the kind used in outdoor hoses also purchased at ACE...to shimm the excess lenght of the bushing and end with a large metal washer and bolt...I always bolt the engine on with the nuts on the inside of the firewall...but you can reverse this and have the threads and nuts on the outside....those bushings make a nice clean mount with vibrtation dampning and a solid engine mount.


I don't think their is a cockpit kit for this pland mine is just scratch built...

(in reply to GUAIO)
       Post #: 502

RE: CMP 160 sized Texan - 6/2/2008 7:33:57 PM   
mystar46



Posts: 163
Joined: 11/4/2005
From: Kennett Square, PA, USA
Status: offline
quote:

DAVE ...... your right about the Zenoah engines they are great....as far as the elevator control rod is concerned your also right I had to modify the system at the elevator connections its going to be difficult to explain , I would need to send you a picture but I can't get in the fuse to photograph...........................................


I threw every bit of hardware that came with the kit in the trash and had made my own elevator setup. I had a brass control arm soldered to a steel joiner for the elevator halves and the solder joint broke loose just from the vibration I guess. I tested its strength before putting it in the plane and it seemed real good. It was all internal in the fuse like the one in the beginning of this thread.
I have a 4-40 rod and ball joint on the pushrod, so I'll just go through the fuse on one side. Since I put the steel joiner in there I only need to connect to a horn on one side. Should be a relatively straight shot and very strong. My Sig 1/4 scale Cub is setup the same way and I have hundreds of flights on it. Like I said I'm glad I found this now rather than in the air when it's too late.
I only need to setup the retract valve and servo, mount the air tank and balance and I will be ready for maiden this weekend if the wind ever calms down. At this point it seems like I will still need to add nose weight even with the G26 up front.

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RE: CMP 160 sized Texan - 6/2/2008 9:19:06 PM   
ScaleRCpilot


 

Posts: 59
Joined: 4/28/2003
From: Gonzales, TX, USA
Status: offline 		mystar46,

Sounds just like my G23! That motor will haul it around just fine from what I'v seen!

Your not using rubber mounts from what I can see- don't think you need them if you balance your prop. Plane looks like it was designed around the G26.
Thanks!
SR/CP

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RE: CMP 160 sized Texan - 6/2/2008 10:04:54 PM   
mystar46



Posts: 163
Joined: 11/4/2005
From: Kennett Square, PA, USA
Status: offline
quote:

mystar46,

Sounds just like my G23! That motor will haul it around just fine from what I'v seen!

Your not using rubber mounts from what I can see- don't think you need them if you balance your prop. Plane looks like it was designed around the G26.
Thanks!
SR/CP



G26 is a potent little motor!
I wish it sounded a little more like a 4-stroker and less like a chainsaw but what can you do.
It will be nice at $4.50 a gallon instead if $15.50 a gallon and no slime to clean up after each flight except for residue from smoke system.
Bolted right to firewall seems good and my balanced prop was nice and smooth.

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RE: CMP 160 sized Texan - 6/8/2008 9:07:16 AM   
Thunderbolt47



Posts: 985
Joined: 10/23/2002
From: Beulaville , NC, USA
Status: offline 		Hey Dave, I'll be at Warbirds over Delaware too. I had a blast last year with my "Bald Eagle" Mustang. It survived all year to make another trip this year. She is down at the moment. (don't want any last minute mishaps.)

Looking forward to seeing your Texan. I haven't ordered one yet, I have way to many projects going on now. My Wife would beat me badly, if I bought another plane right now. But maybe it wouldn't hurt to much. I will heal up and it is a cool plane (After seeing one I'll might take my chances)

Anyways, look me up and introduce yourself. I be flying this.
Kelly


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RE: CMP 160 sized Texan - 6/8/2008 11:07:34 PM   
mystar46



Posts: 163
Joined: 11/4/2005
From: Kennett Square, PA, USA
Status: offline 		Hi Kelly

That's a nice Mustang! Is that the one that Jim Beasley flies? Our club recently took an exclusive tour of his hangar at Chester County Airport. Very impressive to say the least.

Anyway, my maiden flight did not go well yesterday. I snapped into the high grass on takeoff. I believe the plane was too heavy. I tried to do too many things and overloaded it. Flaps, lights, retracts, and a smoke system. I have another airframe and my engine, radio, and retracts all came out fine. Unfortunately I don't think I can have it ready for Warbirds now. Sorry to let everyone down. I'll still be there with my friend John flying a Dynaflite PT-19 with an OS 1.60 twin 4 stroke in it. I'll try to find you out there!

Next T-6 will not have smoke or flaps. Should come out much lighter.

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RE: CMP 160 sized Texan - 6/9/2008 2:07:15 AM   
RCPILOT78


 

Posts: 276
Joined: 4/20/2005
From: new port richey, FL, USA
Status: offline 		MYSTAR..too bad about the maiden.....my at-6 weighs in at 17 lbs.. and is a floater without flaps....a word of caution about the at-6 wing , even the full scale wants air speed before liftoff...the 3rd flight on mine I almost did the same as yours but was luckier I was able to save it....from then on I always get her up to speed and she practically lifts off on her own....now have over 100+ flights...you might forget about the smoke but I recommend the flaps..

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RE: CMP 160 sized Texan - 6/9/2008 12:42:17 PM   
Thunderbolt47



Posts: 985
Joined: 10/23/2002
From: Beulaville , NC, USA
Status: offline 		Dave, sorry to here about the maiden. Hopefully some one else will have one there I can look at.

My Mustang was modeled after Jims plane. He came to Wilmington NC several years ago and I thought the scheme was cool. I did change it a little. Biggest change was the inviation strips on the top of the wing. If you can get a copy of SKS WOD 2007 video , I flew a flight for them.
G-62 130mph. 25lbs

Back to the T-6.

What did yours weigh? An AT-6 almost needs smoke just like any Bi-plane. they just go together. Burn some midnite oil and get it done!

Later,
Kelly


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RE: CMP 160 sized Texan - 6/9/2008 8:42:11 PM   
mystar46



Posts: 163
Joined: 11/4/2005
From: Kennett Square, PA, USA
Status: offline 		I'm going to weigh what's left of it and see what it came out to.
It landed on one wing tip so the front and rear wing mounts twisted the fuselage and shucked it like a crab.
Basically one outboard wing panel on the wing is toast and the firewall ripped out. (no surprise after seeing how little was holding it in to begin with)

I guess all I can do is learn from my mistakes and try again. I will be weighing and balancing after every step this time.
I'm pretty sure it weighed more than yours does RCPILOT78.

If I get a good flying plane this time I can always go back and add things later.
I agree with your comment about the smoke, Kelly! Check out Jim's hangar pictures at http://www.chestercountyrc.com/modules/xcgal/thumbnails.php?album=55&page=2 .


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RE: CMP 160 sized Texan - 6/10/2008 12:27:26 AM   
ScaleRCpilot


 

Posts: 59
Joined: 4/28/2003
From: Gonzales, TX, USA
Status: offline 		Dave,
Sorry to read about your bad crash. It happens and it sucks! I know how you feel!
I lost a real nice Royal pt-17 Stearman on its first flight - dove straight in from the sky! Demolished! But look at it this way - at least you did not spend 8 months building it! Order up another and try again!

Good luck!
Doug SR/CP

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RE: CMP 160 sized Texan - 6/10/2008 2:44:58 AM   
mystar46



Posts: 163
Joined: 11/4/2005
From: Kennett Square, PA, USA
Status: offline 		Thanks

Yeah I already have another of the same. Started on it tonight. I'm not one to give up so easily, especially when I hear about how well yours all fly. I'll get it right this time for sure! Radio, engine and retracts (all the expensive stuff) came through unscathed.

Mine weighed in at about 18.5 lbs dry. I hate to think I had any preconceived notions about how it would fly, but it just felt so damn heavy when I carried it to the flight line.

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RE: CMP 160 sized Texan - 6/10/2008 2:59:35 AM   
RCPILOT78


 

Posts: 276
Joined: 4/20/2005
From: new port richey, FL, USA
Status: offline 		mystar46....scalercpilot is right order up another and try again...the price is right for an 80 inch warbird arf....I really can't see where your bird could have come out heavier than mine I use the Robart retracts they are heavier than than the Eurokit and seirra retracts ..I also have flaps..the only thing you added was smoke can't believe that the smoke gear would make it that heavy...I had the bird out today and flew the paint off of it.. takeoffs and landings are so easy I can't believe yours did what it did...oh and yes the firewall does need some epoxy reninforcing...but that is true of all arfs....

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