HL Graupner AT-6

[JPHen]

Well I couldn't resist so I went ahead and bought the new Hobby Lobby AT-6. It was delivered yesterday.

First Impressions - very, very nice ARF. All controls are already hinged, pushrods are already installed, Canopy is already cut and painted, fg cowl, nice set of retracts. Overall very nicely done. As a matter of fact, I think this is going to jump to the front of the build que (ahead of a Jepe F-16 and Hobby Hangar Bronco).

I weighed the airframe with the hardware I'm going to use and came up with 4 lbs 15 oz. The Hobby-Lobby conversion was 129 oz, so I'm worried a little bit about the weight as it's only a 52 inch wingspan.

My proposed set-up is as follows:

Hacker B50 13s w/6.7 gb
2 x 3s2p 2100 Prolites or possibly 2 x 3s 2100 TP Pack (6s) depending on weight
Phoenix 60 w/ubec
Going to use HS-85's for rudder, elevator (2), and ailerons (2) and retract servo (TBD)

Looking at HL's setup, they used an AXI 4130 w/2 3s 3200 Kokams and an 1800mah receiver pack. I'm hoping that I can save some weight using my setup.

For grins, this is how it looks after five minutes of giddily putting the big pieces together... :D


Joe

[CUBANO8]

Very nice!!

I saw the video that HL has on this one, I'm impressed!

[PerfectStranger]

It's peaked my interest as well. Maybe a project for '06, we'll see. Keep us updated on your progress Joe.

matt

[JPHen]

Thought the plane looked strange when it's next to my other planes. So I take out the tape measure and the wing measures 62 1/4 inches. I think HL needs to update their website.

[Tommy D]

JP

That was the bird that impressed me most at NEAT. Flew like it was on rails!

Good Luck

Tommy

[JPHen]

Thanks Tommy, in my opinion, it's one of the nicest ARF's I've owned.

[bwillhite]

Could you post a link to this plane on the Hobby Lobby website? I can't seem to find it!

Brian

[CUBANO8]

Could you post a link to this plane on the Hobby Lobby website? I can't seem to find it!

Brian

http://www.hobby-lobby.com/harvard-at6.htm

[jeremyl_13]

Could you please post the wheel well sizes as I'd like to know if It could handle larger wheels. As the stock ones look rather small.

[JPHen]

The wheels in the kit are around 2.25 inches. I have 2.5 inch wheels that fit well, I thin you'll be able to squeeze in 2.75 inch wheels, but it will be tight.


Joe

[the Swamp Fox]

looks great joe.

my buddy converted 2 of the graupners(cub and decathalon ) they both had a very high level of completion out of the box. A true ARF .

nice price too. Best of luck :)

[jeepers1940]

I've seen many a prototype AT-6/Harvard over many years, and the stock wheels sure look a tad small to my eye. If they would fit, larger wheels would look more scale-like.

[ElectRick]

Are there any built-in provisions for retracts or is it a DIY modification? It sure is a nice looking plane.

Rick

[JPHen]

Jeepers how big would they need to be for scale?

Rick - it comes with mechanical retracts and the mounting for both the retract and retract servo are drop-in, they're pretty hefty too - aluminum - I'll see if I can post some pics.


Joe

[drksyd]

Very nice plane, you got yourself a winner Joe. If I didn't have the KMP Texan I would look into the Graupner. Would be interested in seeing pics of the retracts. Are the gears bent forward?

[jeepers1940]

JPHen, I'm afraid I don't know just how big main gear wheels need to be to be scale, but somewhat bigger than pictured, IMO.
Several years ago, I had an opportunity to examine an AT-6 that was lying around on a cropduster strip disassembled, awaiting a buyer. (No, don't get your hopes up - it's long gone) It was certainly used but showed no real damage. It had been a Spanish Air Force trainer, had been purchased and brought over here (U.S.) to sell to an interested party with some money to spare. It had the Spanish A. F. crest on the fin as I recall, and one of the main gear tires was a Pirelli tire; the other m.g. tire was another brand. With the landing gear legs off the plane, I remember how large the tires looked. I like to think she's still flying somewhere -
BTW, they're right, yours is a fine looking model.
Bill

[JPHen]

The retracts are bent very slightly forward, if I had to guess, I'd say about 5 degrees, maybe a little more. I'll post some pics later today - heading out to take the kids to the pumpkin patch.

[Tommy D]

Packed away somewhere in this house are hundreds of AT-6/SNJ photos. I’m sure they might help you determine what’s scale on your wheel questions.

I assisted my Pop's when they had to do an extensive repair on one.

Back in the 80's it's pilot <Former P-51 Jockey> had just landed. While still on a fairly high-speed taxi run he was told to expedite the runway ASAP.

Well the SNJ has a lock on the tail wheel so at high speeds it doesn’t swivel. The pilot unlocks the tail wheel, the plane gets away from him and you can guess the rest!

Aside from an engine remove/inspect/reinstall, replacement of both landing gear struts <bent> she also got a wing.

I'm in the process of moving, but if I find any of these gems I'll be glad to post them.

Ok, back on topic!

Tommy

[JPHen]

Tommy, feel free to post any and all pics. Love to see 'em.


Joe

[the Swamp Fox]

here's an SNJ that stopped by .

went up in it and actually had the stick for awhile . It was great.

re: tires . hopefully they'll spend most of time in the wing anyway :)

g'luck Joe!

[JPHen]

All ~ thanks for the words of encouragement.

Here are pics of the retracts.

[JPHen]

I'm also curious and need some feedback whether or not I should use a receive pack or UBEC. If I go with a receive pack, what size should I get?

[CUBANO8]

I'm also curious and need some feedback whether or not I should use a receive pack or UBEC. If I go with a receive pack, what size should I get?

I perfer an RX pack. The size is really up to you, if you need nose weight, then a larger pack will help.

[JPHen]

Well, I'm thinking about using the adjustable e-mount that esprit sells, then mount the lipos packs on the side of the mount. This should give me enough weight up front (I'd guess). Although I don't want to use too much weight for a receiver pack, it does give me some flexibility.

[CUBANO8]

You know what would be nice if you can PM Mike Hines AKA "HiFlyer", and ask him to post some pics on the insides of the HL AT-6, so we could see how they did there setup.

[JPHen]

I wish I could. I called HL to ask how they mounted the motor and whether they moved the servos. HL calls me back and tells me the guy who did the conversion left Hobby-Lobby and took the plane with him.

[Tommy D]

When did this happen?? It was flying what... a month ago at the NEAT fair??!!??

[the Swamp Fox]

hey Joe,

have you decided on batts and motor yet ?

maidened my cmp Super Chipmunk today(6lbs) ,About the same size as the AT-6 . No weight needed up front with the big hacker 9xl . 5s3p 6750 put me quite nose heavy with the pack far back as I could get. Still flew nicely.

I use ubec with no worries. Rx pack cool too.
one thing I wouldn't do is strap lipos to the motor mount of 5-6 lb+ plane .
just seems like a lot could go very wrong in the event of a hard nose in ..seen it :eek: . I know alot of people do it ... but that's just me .

when you get all your gear together a quick mock up will give you a good idea of where everything needs to ride. You'll probably have to do a little hacking but I don't see balancing this plane being too hard at all.
best of luck
~henry

[CUBANO8]

Yea I agree, If you can get those Li-Po in the fuselage, and maybe add some type of protection for any hard impacts, It would save you some headaches. Trust me, I've smashed a couple already, but sometimes I have to shift things a bit to get the CG right.
I like TP warranty, they can either fix it, or if they can't, 1/2 price for a new pack, no matter what condition.
I still say they make a profit on 1/2 price anyways.

[JPHen]

Thanks for the input - I think I'm going to hold off cutting anything until everything is mounted.


Joe

[JPHen]

Need two servos for the elevator. Odd - first plane I had needing this. I was hoping I can avoid the need for two, but don't see how I can avoid it.

BTW, need a recommendation on retract servos. Will any standard size servo work?

Oh - forgot to mention that I'm going to run a B50 13s w/6.7 gb on 6s. Amp draw wise I may be able to get away with 6s1p on Prolite 2100's. That's why I'm concerned about the nose weight.

[Hiflyer]

JPHen

I am sorry that you got some incorrect info when you called Hobby Lobby. The plane that flew at NEAT was built by David Payne, one of HL's demo pilots. His full time job is as a Chattanooga fireman. I will ask David to post a couple of photo's of the motor install and the battery placement.

The batteries on our model are installed in the fuselage with one 3S pack on each side of the fuselage connected in series. The model did not require any additional nose weight to achieve the recommended CG. We are flying ours on a 6S1P 3200 Kokam setup.

Mike Hines

[JPHen]

Mike, thank you very much. Would love to see David's setup. Appreciate it.


Joe

[the Swamp Fox]

hey Joe,

yup my bud's decathalon used 2 ele servos. No way to make a "Y" ?

no biggie .

for the retract servo ,you might need a low profile deal . Not sure . HL post that on the "what you need " page ?

I'm using a HS-75bb retract servo in the '40 works great .

take care~
Henry

[JPHen]

Henry - cool beans. Thanks.

[CUBANO8]

The "Y" is the way to go. That is what I'm using on my WM Zero, for elevator.
If you use two servos you might have to use a reversor, and it is just going to add more weight to the tail.

[JPHen]

Man, that would mean cutting out the pushrod tubes. You mean cut into it!!!! ;-)

[Hiflyer]

I spoke with David Payne today and he will be posting some photo's of the motor install and the battery placement.

The 2 elevator servos are no big deal and no reverser is required.

You will need to use a retract servo like a Hitec 75BB. These are not proportional servos, they have 180 degree rotation and thats it. Don't try to do retracts with regular servos, its not really suitable.

Good luck,

Mike Hines

[D PAYNE]

Hey Guys Sorry for the confusion, here is some pics of my set up the 3 cell 3200 fits right in the holes on each side and with a little velcro your done. The motor mount is pretty easy and you can get the spacers from Hobby Lobby. I also included one of the Cowl, if you glue the ring to the cowl you can just bolt it to the firewall and you will not have any screws on the outside. Hope this helps if you have any questions just let me know.

David Payne

[D PAYNE]

Here is a few more

David Payne

[Gonsos]

The motor mount is pretty easy and you can get the spacers from Hobby Lobby.
David Payne
I can't find the spacers in the Hobby Lobby web page. Does anybody knows where it is or where I can find it?

[D PAYNE]

Hello, The spacers are new so they may not be in the catolog or on the web yet I will do some checking and try to find something out for you.

David

[Hiflyer]

Hey guys

The spacers will be up on the HL website today.

David

Thanks for posting the photo's.

Mike Hines

[JPHen]

Thanks for the help. I'm using a different motor (Hacker B50) but the position of the lipos helps out quite a bit. Good idea to place the battery lead in the muffler recess.


Joe

[ElectRick]

If those spacers are nylon, I've seen some like that at hardware stores or Home Depot/Lowes in the hardware/fasteners sections.

Rick

[agapornis]

Hello David P i have also the GRAUPNER TEXAN AT6...Do you think i'll be able to use it with the new himax 3528-800 on 14,8 v 4000 mah or is best to use 2 packs of 11,1v 4000mah in series ?
Suggestions for prop ?
Regards

[Marc Scully]

JPHen

I was looking to electrify a MoJo which is a US made profile, and have been looking at the Hacker B50 13S with 6.7 box, trouble is a well respected electric flyer in the UK who is a Hacker importer says that this motor is not suitable for this type of use, and that the C50 13S with 6.7 box is what is required. He went on to say that this a dedicated Aero motor, with cooling fins built into the case, a beefed up gearbox and a thicker drive shaft. He said the trouble with the B50 involves overheating and drive problems when using close to limits. Have you been given any feedback on this yourself? :confused:

[JPHen]

Well Marc, I certainly hope this is not the case. I will however, run the motor with a heatsink and the open cowling should assist with airflow. I'm sure others may chime in here with further experience with this motor.

With regards to the Himax 3528, I thought this motor was equivalent to an axi 2826?

[the Swamp Fox]

Hey Marc



there are some handy application charts at

www.hackerbrushless.com

and

www.espritmodels.com

how about a link to MOJO specs :) ?

take care ~

[JPHen]

Well, I decided to try using the glow mount (nylon) and 36 mm clamps to mount the Hacker. Question - are the mounting points on glow motors inline with the the propshaft?

[drksyd]

The mounting points to the IC motor mount should be parallel if that's what you mean. An IC motor will have it's shaft centered between the mounts but that won't happen when you use the clamps with electric.

[JPHen]

Thanks Drksyd - time to chuck the mount.....

[drksyd]

Sorry, didn't want to make it sound like it's garbage. It's one of the easiest ways, just need to mount clamps to IC motor mount then mount to firewall so that you can position it correctly where that shaft needs to be.

[luc]

another converted AT6,...the H9
same motor as in HL: 4130/16 and 6S lipo
flies on rails, ultracote covering

[JPHen]

Luc, can you show me your motor mount setup?

[luc]

well, it's inside the cowling.
I use esprit model alu mounts and reverse mount of the motor.
bottom line, it looks like this (except it is a 4130/16).
this system is very sturdy, no vibration, though more expensive than some plastic dowels.

[ScaleBrad]

I saw the real plane here in Orlando this weekend at the Rotary Club airshow. Enjoy:

[agapornis]

Luc can you tell me wich prop size are you using on your at6 texan ?

[luc]

15*10 apc e on 6S. 33A static, 26A avg in flight.
I can stay with light setups using 6S1P 2100 (best being the TP PL)
I can also use 6S2P for 2 flights on this heavier setup.

[agapornis]

Can you give me the dimensions and weight in cm and kg of your AT6....
I have the GRAUPNER NEW AT6 HARVARD and with the 4130-16 JETY 70 OPTO POLIQUEST 4400 15C on a 14x10 APC PROP it sems under power i have 31 amps with 680 watts .....If i put a 16x10 fuel prop i have 40 amps 790 amps.....tomorow morning i will do my second test fly.....What you think?
Je parle et ecrits aussi bien en français.....
Merçi de votre aide......

[luc]

With a very light battery setup (like a 6S1P TP PL), this H9 AT-6 weighs as low as 3.4kg. With a heavy battery setup ( like a 6S2P 2200), it can reach 3.8 kg which is the supposed std weight announced for this plane (glow powered). all data are here:
http://www.espritmodel.com/l_texan.html
Yep, 14*10 is underpowered. You can go between 15*10 and 16*10, but I don't recommend the 16*10 (which I tested) because:
- These axi motors are good % performance betwwen 30 and 40A,...above a lot of power goes to heat rather than to the prop...I tested it and didn't experience really faster flight. Moreover, these motors don't like too many high amps and I had to return one whiere 1 winding split to model motors (repaired for free in a month, good service)? So I don't recommend above 15*10...

[Tommy D]

I was cleaning out my Pop’s home this weekend and stumbled upon these SNJ photos. I thought they might help someone detail the undercarriage if they so desire.

So JP did you ever get her flying??

Tommy D

[JPHen]

Whoa - cool Tommy - thanks. Naaawww. I'm guilty as charged, haven't gotten her flying yet. Basically, all the electronics are installed. Just need about three hours of uninterrupted time to get her airworthy. My setup will swing a 15x10 prop at 1170 watts on 6s TP packs. Probably prop down or go with 5s packs b/c that may be a bit much for a hacker b50s. I've been tempted to get the scale struts that robart makes - wonder if they'll fit?

Been sidetracked with getting my brother in law started in flying as well as bringing a neighbor up to speed on electrics. He's a retired Navy pilot (my neighbor) who flew Helldivers in the pacific. Wants to convert a Senior Kadet. I also have to admit I've been goofing with an Alfa P-51b that I picked up during the sale and a HL Bonnie I finally put together..... Sooooooo. Not sure when, but I guess I better finish it before the Hyperion P-51 or Hayate.


Joe

[Tommy D]

Joe

Can I ever relate to that post. Well perhaps not the part about the EX Navy jocky!

The alfa birds are addictive! I mean they fly great, look great and go together so easy. I myself just picked up an E-Flite P-47 and have been toying with it. Made a lot of mods so I hope it flys as good as the stocker! Sometimes change is NOT good, if you know what I mean.

I have an old <80’s> trike gear 40 trainer I would like to convert to electric. Also have an OK Models FW-190 that would be a natural for electric. I guess I’m just waiting for the price of these 20c Lipos to drop a bit. Also I hope somewhere down the line we will start seeing 2-5c charge rates with lower battery temperatures on discharge.

I really hope you do get to fly her next season. I know the H.L. guys at the sticks are pro’s, but man, the AT-6 at the NEAT fair was really tearing it up!

Take care

Tommy D

[the Swamp Fox]

My setup will swing a 15x10 prop at 1170 watts on 6s TP packs. Probably prop down or go with 5s packs b/c that may be a bit much for a hacker b50s.

not sure Joe , my experience with Hacker is that they can take just about anything ya through at em,,, just heatsink it and keep some air on it. .... in the high perf thread guys run em @ 100a +

:eek: granted for short periods ....

OT that hyp P-51 looks sweet ... might have to get that one .


best of luck and hope ya get the AT-6 maiden in soon .

Henry

[JPHen]

Tommy/Henry - got some work in on it today - but had to stay home with the kid, he had strept throat. Kinda ticked at the screws that came with the kit. Stripped a few on the retract install.

That Alfa is addicting, though the ridiculous amount of down elevator needed to keep the plane level at full throttle takes some programming on my transmitter.

Trust me guys, I'm working on it, pretty hard with 6 inches of snow also...

Joe

[Coop]

BIG QUESTION here. Does this plane come with instructions on how to convert or am I supposed to know how to do this already. I have been looking at this bird for awhile but have never done a conversion before.

[JPHen]

Coop. No, it does not come with instructions on conversion. Basically, I took information from the forum here on how to do a conversion and also from Hobby-Lobby's website. In my case, I used the engine mount that came with the plane and used clamshell mounts w/heatsinks to mount my Hacker. I'm still trying to figure the battery mounting technique so that I won't have to remove wing or cowling. So yeah, there is some engineering necessary for a conversion. I'd also suggest taking ideas from others that have converted glow planes either here or in some of the ezone reviews.

[Vamooska]

I just thought I would chime in here too. I received my HL AT6 and I was really impressed with the kit. Retracts are super solid lock up/lock down. She might be a tad heavy but I dont think it is as near heavy as posted on the HL site. I just received the motor I will be using too. Its the Himax HC5018-530. This is one beautiful motor. :D Himax just got them in and I will carrying them soon. For a 120.00 retail motor..you simply cannot beat it....there is nothing else to buy. The prop adapter, firewall mount, spacers, all screws and even the blind nuts for the firewall were included! I will try the 14X10 APC on it and see what the meter says. This setup on a nameless :rolleyes: 5S1P4000 pack should do the trick. You will able to see the pack at SEFF ;)

I will more than likely use the Medusa BEC. It is more compact and feature rich.

I will post pics of the motor when I get her mounted up.
Does anyone know if there is built in offset for the motor???

Vammy

[JPHen]

Vammy, thanks for the info on the Himax. I should be flying mine soon. One thing I noticed about this plane - I think it's the same plane as the Seagull AT-6 - if you look at the instructions on Seagulls website, the interior build is the same - though Graupner takes it a bit further with the pinned hinges.

[Vamooska]

I think they are in fact the same lasered parts but the Seagull's instructions say the wing is 74". I know the HL Texan is way shorter than that. Prolly just a typeO.
Everything else look s like a direct drop in.
Vammy

[JPHen]

I think they are in fact the same lasered parts but the Seagull's instructions say the wing is 74". I know the HL Texan is way shorter than that. Prolly just a typeO.
Everything else look s like a direct drop in.
Vammy

Vammy, there are two - look under the fighter section on their website - there is a 62 inch version. Coincidentally, Graupner will be coming out with a Sea Fury (racer version - check out their website) and Seagull just so happens to have one: http://shop.graupner.de/webuerp/servlet/AI?ARTN=9389. I'm not absolutely certain they are the same, but they do look close.

[Vamooska]

It doesnt appear there is any offset in the firewall. Do I need to build in about 5 degrees???
Vammy

[drksyd]

That's strange, the firewall should be offset from the factory. Did you stand it on the firewall? It may be slight but there should be some.

[Vamooska]

I will look at it .....thanks! :D
Vammy

[Vamooska]

Did the power up with the watts up meter.
Setup:
Himax 5018-530 outrunner with 14X10 APC E Prop.
Phoenix 60 ESC
UBec for Receiver Power
Vampower 6S1P4000ma pack (Two 3S4000 in series)

Half throttle produced about 18-20 amps with it maxxing at 60. Almost blew my curtains down :D The Vampowers were barely warm after a 5 min run.
I will maiden next week and display at the SEFF. Retracts work soooo smoothly. I will weigh her tomorrow.
Thanks
Vammy

[Doctor Who]

Vammy,

Hope you are going to fly her at SEFF.

Good luck on the maiden.

[Vamooska]

Prolly will let Gary Wright or Mac8 fly her. I am sponsoring them at the SEFF!!!!
Both good pilots and I will be busy selling great suff at incredible prices. :D

Take Care...come see me
Vammy

[Vamooska]

My AT6H weighed in at just under 7 lbs. This setup produces 120 watts per pound.. Should leap into the air. I will let you know on Thursday!!!!!
If you are Skeered.....say you skeered.
Skeered Vammy

[DerGoetz]

well, it's inside the cowling.
I use esprit model alu mounts and reverse mount of the motor.
bottom line, it looks like this (except it is a 4130/16).
this system is very sturdy, no vibration, though more expensive than some plastic dowels.


Thank you for that Link!

BTW, what is the latest on the side-thrust of the engine.
My firewall is flat and I am afraid the AT-6 will pull to the left on maiden flight.
Any tips by the guys that have maidened their planes?

Thank you!

Götz

[Alex B]

Yes please any issues regarding side-thrust ???..I'm not very experienced on this matter and I'm actually building one of these beauties from Graupner and wouldn't like to crash it on 1st. take off...

BTW which alu-rod measure did you use as an extension on Sprit Alu mount ?

Thanks everyone, all these reading at RC GRoups is very helpfull !!!

Alex ;)

[JAM]

Guys I don't know if this will help but as a general rule of thumb.....I think I remeber hearing that any tail dragger should have at least 2 to 3 degrees of right thrust...........But I could be wrong........My gp Cub has 2...my HOB mustang has 2 and my Current build.....HOB Texan is getting 2.........the cub and mustang track really well this way..also the cub has about 2 down also being a high wing. I hope someone else will step in here. I don't catch the blame for a crash.

JAM

[drksyd]

If I'm not mistaken, all ARF kits come with some right thrust built in. Or at least all of the planes I've bought and seen.
What I've learned about thrust angles is to not over do it or it'll pitch on you when you cut the throttle.

[luc]

Yeah, no special side thrust to put other than the built in one.
for the esprit mounts and the 4130/16, you need:
1 front plate trype 1
1 back plate type 1
4 extension rods 4" (this is for the H9 at-6)
of course:
1 prop Adapter 6/8 (look under motor accesories on esprit site)
and if you want a nice scalish finish
Tru Turn Spinner 2-1/4" AT-6 2-Blade
http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXKD66&P=7
and Tru Turn Adapter Kit O.S. .61 Up 4-Stroke
http://www2.towerhobbies.com/cgi-bin/WTI0001P?&I=LXKE06&P=V
I use a 15*10 apc on 6S (from 1P TP 2100 PL to 2P 2200 old irate).
very nice flying plane. I put lighter wheels also, in order to facilitate the gear movement (and gain some weight).

[Alex B]

Thanks for your reply Luc I've already ordered the motor mount at Sprit, and for replying regarding side-thrust as it sounded a bit too much to handle for me.

Alex ;)

[Alex B]

If I'm not mistaken, all ARF kits come with some right thrust built in. Or at least all of the planes I've bought and seen.
What I've learned about thrust angles is to not over do it or it'll pitch on you when you cut the throttle.

Thanks m8 all info is welcome and very helpfull !!!

Alex :D

[Vamooska]

I flew the Texan again today. AWESOME. I set up the ailerons differentially...not "y'd" together. I think that is a must. The factory installed thrust angle is right on. No yaw tendencies at all. It performed very well with the lowered aileron at only 3/8" and the raised one at about 1/2".
She was at the SEFF too. :D
http://www.wattflyer.com/forums/showthread.php?t=6551
Good luck guys! You will enjoy it.
Hobby Lobby wanted it on their table for display on Saturday :D
vammy

[Alex B]

I flew the Texan again today. AWESOME. I set up the ailerons differentially...not "y'd" together. I think that is a must. The factory installed thrust angle is right on. No yaw tendencies at all. It performed very well with the lowered aileron at only 3/8" and the raised one at about 1/2".
She was at the SEFF too. :D
http://www.wattflyer.com/forums/showthread.php?t=6551
Good luck guys! You will enjoy it.
Hobby Lobby wanted it on their table for display on Saturday :D
vammy

Vamooska could you please expand on how to work the ailerons without a Y...it may sound an stupid question but can't think of how.

Thanks a lot,

Alex :o ;)

[Vamooska]

What you have to do is, in the example of a Futaba radio, use a mixing function....flaperons.
You connect the right servo to channel 1 and the left to channel 6 (flaps).
Then enable flaperon wing mixing. As you will notice...your flap switch will now operate the ailerons as flaps but still maintain a differential for aileron function. The flaps function is not really that important as this plane is a fairly slow lander with no tipping tendencies. You want the lower aileron to come only 3/8" full down for maiden...that is plenty. The upward deflection should be 1/2". The excessive drag from a 1/2" deflection on a low aileron causes excessive drag to the high wing in the turn...the result is a sloppy and higher yaw slipping bank. Final approach.....gear down and she settles down for a nice and easy 3 pointer. :D
Check your radios manual for the wing mixing and look for flaperons.
Vammy

[chielles]

Hello guys,

After a full season flying: still happy with your HL AT-6?

(planning to buy one...)

Thanx.

[Vamooska]

Oh man....Its the absolute sweetest airplane I have ever owned. It is a show stopper at every field. Awesome.
I have never even had to adjust the retracts after building....Its that solid.
Hobby Lobby had it on their table at the SEFF this year :D
Vammy

[chielles]

Thank you Vamooska!

What would you do different on the setup if you would build a new one?

Is it not too heavy? Or too under- or overpowered?

Or is it just perfect? Still happy with Himax?

Just bought one, now looking for the optimum setup.

[Vamooska]

I would go with exactly what I have in it now. My vampower packs slide in perfectly in the bulkhead cutouts, The Jones Witch makes it safe and the Himax provides plenty of raw power.

[kneedragger]

Do you guys have slop in the landing gear when the gear is down? Mine have a little bit of play.

Vamooska - thanks for cluing me in on the gear adjustment screw.

[kneedragger]

I just maidened my AT-6 with a 14x10E and I was underwhelmed. I was getting 700w and 35A on the ground. The maiden went well aside from the lack of power. Take off was predictable and I allowed for plenty of airspeed before pulling back on the elevator. I did some aerobatics and the plane tracked well. Landing is cake as long as you bring it in with speed. Since most of my planes need speed for landing, I am use to flying the plane to the ground. Overall I am impressed. The only issue I have is with the tail gear bracket, which broke when taxing on the runway. I glued it back together as a temporary fix.

This afternoon I put a Master Airscrew 15x10 glow prop on the plane and I am getting 1050w at 44A. I haven't flown with the new prop, but I am sure it'll be much better. Vertical with the 14x10E was pathetic.

[Tommy D]

If it were me <and it's not> I would select another Electric prop before I dug out a glow model.

Have you tached either prop?

Tommy D

[kneedragger]

I was able to find a APC 15x10 today. I'll give that a whirl first.

[tkoguy]

what you guys thinck of the e-flight 60 motor ? im going with a 13x10e prop and 6cell 4200 tp. and i dont recall anyone talking about the dual elevator servos, how do you program your radio w/o using some kind of y-harness to control both ele servos?

[drksyd]

The Power 60 flies a .60 size good with a 15x10E and 6S. You'll get a little more speed with a 14x10E and 7S. Granted this is a .40 size, I'm not sure if you'll have enough rpm for the smaller prop. Put it on a watt meter and see what you get.

[tkoguy]

isnt this plane a 60 size plane, the e-flight power 60 is very close the the one hobby-lobby's axi motor isnt it?