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Old Mar 11, 2010, 08:26 AM
Founder of the EDF20 club!
all4smallrc's Avatar
Minnesota
Joined Apr 2008
3,252 Posts
Yeah I had a brownout with my 6100 once. I was using a crappy Mag 8 esc though and it was right next to my rx. Fortunately this was on a Liteflight Bug and not my Stryker.
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Old Mar 11, 2010, 08:42 AM
No meat = no pudding
brwilkins's Avatar
Machesney Park, IL
Joined Jul 2008
1,421 Posts
Quote:
Originally Posted by rwmson View Post
I have a beatup stock Stryker F-27C that's going to receive a makeover: Mega 16/25/2 motor (recommended by Gryphon), Phoenix Ice Lite 100 ESC, Hitec 82MG servos, 4S 30C TP2250 bats. I'm wondering if the stock elevons are sturdy enough. I was thinking of glueing thin, 1/2 inch wide CF strips to both sides of the elevons to stiffen them. I currently use an APC Sport 6x5.5 prop.

Does anyone care to evaluate my stiffening plan, and care to weigh in on prop selection?

Roger
I have a setup almost identical to yours. Personally, I don't think the stock elevons are sturdy enough to hold up past maybe 100 mph. Or to be more accurate, I don't think the hinges and horns are good enough to hold up at those speeds. I took some triangle / airfoil shaped balsa from the local hobby shop and made my own. To secure them, I used small Robart point hinges (4 per side). Robart also has a small drill jig thing that I think costs about $10. It will align your drill bit to the center of both the foam and the balsa and you can drill out a small, perfectly centered hole to put the point hinges in. I then used 30 minute epoxy. I'll also note that my elevons came out to be only about 2/3 the width of the stock ones. While I was a little worried about this, I found that it was just about perfect, given the increase in speed over stock. For controls, I used heavy-duty plastic Dubro horns that have 4 screws each going through each elevon and connected them to my servos using 4-40 rods that have locking clevises. This setup seems rock-solid to me.

Yes, you also need to stiffen the airframe up with CF. How I did mine was to simply take a piece of painter's tape and lay it straight across the bottom of the fuse. Then take a hobby knife and follow the edge of the tape to cut a notch. Then simply insert the CF into the notch and paint some 30 minute epoxy over it. Easy. I've seen a lot of guys on here putting in a lot of CF running different directions. I didn't do mine that way. I just have 3 strips of CF running across the bottom of the fuse and with mine doing around 120-130 mph, it seems to do just fine. I think if you were going to be going over 150 or so, it would probably make more sense to simply glass the thing, but for your setup, which is like mine, 2 to 3 strips of CF embedded in the fuse should suffice in my opinion.

Good luck!
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Old Mar 11, 2010, 09:30 AM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
6,565 Posts
Thanks for the input on the Turnigy 80 amp esc guys.

Kid... I would be interested in some pics of the reinforcement mods you made on your siren wing. I am gluing mine together this weekend
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Old Mar 11, 2010, 09:31 AM
geek.
kittman's Avatar
Joined Jul 2006
152 Posts
Quote:
Originally Posted by johnnyrocco123 View Post
Dudes, I am recommending an ARC setup for a buddy I fly with. I am recommending the ARC 28-47-1.5 on 4S with a 6x4 gas prop. For a stryker of course.

We need some input from those who use Turnigy ESC's. I use the hell out of them(25, 40, 60amp), but when it came to 95amps static I decided to go with a Castle Ice 100.

The question is..... Who feels comfortable pulling 80-85amps in the air with a Turnigy 80amp ESC?????

We are looking for a few who have used the actual esc.

Thanks guys.
He's asking for me and my setup. I currently have a Turnigy 60a Plush, Six Series 2000kv, hardwood elevons and trailing edges, Gary's motor mount, Rhino 4s2150 20c-30c battery and HS-82MG's. No extra carbon reinforcement. I'm looking for a bit more "umph" but nothing crazy. I added the wood elevons because of the flexing of the stock elevons.

BUT here's the catch. I've got a total of 2 4s batteries.. the 2150 20c, and a 3300 30c. And I really can't afford to drop a lot of money on more 4s batteries. And I really would prefer to not buy another ESC if I don't have too... I bought the 3300 to use in my T-34 Mentor and the 2150 in my Stryker. But I would also like to use one of my many Zippy 3s2200 batteries as well. I fly the snot out of my stock (i.e. combat) Stryker with the Zippys, and would like to see the "faster" Stryker fly on 3s AND the 4s.

Attached are a few pictures of the setup as of last night. In it's current configuration, on 4s and 6x4 prop, it pulls only 27amps.

One option I am seriously considering is a buddy's lightly used Six Series 2700kv motor.

Any/all input welcome!

Thanks guys

Cheers
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Old Mar 11, 2010, 02:17 PM
The Kid
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Detroit, MI
Joined Dec 2007
2,583 Posts
Quote:
Originally Posted by ender707 View Post
P.S. My last HC order has shipped, 45C Turnigy Lipos should now be arriving in...
Thank you Ender, for taking this hit for us! I had the same issue with ordering the 30C just before the 35C came out. I can't wait to try out some new 45C packs when they come in
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Old Mar 12, 2010, 02:14 AM
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Olathe, Kansas
Joined Mar 2009
272 Posts
You guys better get over here, http://www.rcgroups.com/forums/showthread.php?t=1207102, and set these guys straight....
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Old Mar 12, 2010, 08:06 AM
Fly it like you stole it!
ODUsurfer's Avatar
United States, VA, Purcellville
Joined Aug 2009
746 Posts
Quote:
Originally Posted by Vegatron75 View Post
You guys better get over here, http://www.rcgroups.com/forums/showthread.php?t=1207102, and set these guys straight....
What's to set straight? Everything they've said is pretty accurate, from what I know and read. -And which is "better" is rather subjective, as they both have very different flight characteristics.
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Old Mar 12, 2010, 10:58 AM
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United Kingdom, England, Redcar
Joined Jan 2006
3,259 Posts
Different planes , horses for course etc its like comparing a spitfire to a fw190 both planes have their good and bad points ( spits the best tho ) I like the stryker they like the funjet.


stryker is the best tho lol
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Old Mar 12, 2010, 02:00 PM
Founder of the EDF20 club!
all4smallrc's Avatar
Minnesota
Joined Apr 2008
3,252 Posts
I'm expecting my Stryker to do 80-90mph with the new brushless system I bought for it. I definitely want to get good servos that won't fail for this thing. What kind of servos would you guys recommend? HS-85mg?
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Old Mar 12, 2010, 02:05 PM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
6,565 Posts
Quote:
Originally Posted by all4smallrc View Post
I'm expecting my Stryker to do 80-90mph with the new brushless system I bought for it. I definitely want to get good servos that won't fail for this thing. What kind of servos would you guys recommend? HS-85mg?
For 80-90mph 85-mg would be more than enough. 65mg's are quite popular.

I have $3 servos in my light weight setup. It flies up to 85mph, depending on the motor I am using.
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Old Mar 12, 2010, 02:06 PM
Founder of the EDF20 club!
all4smallrc's Avatar
Minnesota
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Between the 65s and the 85s, which will fit best in the stock servo cutouts? It's not a big deal if I have to cut some foam, but I'm just wondering.
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Old Mar 12, 2010, 02:08 PM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
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Quote:
Originally Posted by all4smallrc View Post
Between the 65s and the 85s, which will fit best in the stock servo cutouts? It's not a big deal if I have to cut some foam, but I'm just wondering.
65mg's fit perfectly, 85's you will need to cut a bit. I just put some in my new High speed stryker.
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Old Mar 12, 2010, 02:19 PM
Founder of the EDF20 club!
all4smallrc's Avatar
Minnesota
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Well, if 65mg's will fit well and do their job well for 80-90mph flight, I guess maybe I'll buy a couple of those.
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Old Mar 12, 2010, 02:25 PM
You down with EPP?
johnnyrocco123's Avatar
Houston, Tx
Joined May 2009
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Quote:
Originally Posted by all4smallrc View Post
Well, if 65mg's will fit well and do their job well for 80-90mph flight, I guess maybe I'll buy a couple of those.
Yep
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Old Mar 12, 2010, 09:26 PM
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USA, VT, Manchester Center
Joined Feb 2007
283 Posts
What kind of paint can you use on this foam for the stryker? Thanks
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