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RE: Hyperion SU 31 Build Suggestions - 3/4/2009 4:49 AM   
afterhours


 

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From: Spokane, WA, USA
Status: offline 		Hi Jim,

Two 2mm rods were shipped in the kit but no instructions or reference to them. I'm assuming they are to enforce the tail in some way?
Please advise.

The kit was missing one servo horn and the other broke when I was inserting the rod for the elevator. I'll check the LHS tomorrow.

Upgraded to 2 1/2" wheels for the landing gear. Do you think the rear wheel needs to be beefed up?



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RE: Hyperion SU 31 Build Suggestions - 3/4/2009 6:01 AM   
Hauling-A



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Status: offline 		Jared, Here's what I did to my horzional stab, it's a bit of over kill but I don't have any flutter in the horizonal stab. I didn't do anything extra to the tail wheel, but I did go to oversize wheels.

Jim.

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RE: Hyperion SU 31 Build Suggestions - 3/4/2009 8:07 AM   
afterhours


 

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Status: offline 		I like it. I think I may do the same.

I'm ready to align the cowling and install electrics, just waiting for shipment. All is well except to things: glue smudges and x-acto cuts! Oh well, you won't be able to see them in the air. I learned and this won't happen next time.

Also broke the cheap plastic hub in the rear wheel, will replace next trip to shop.

Are the cutouts in the bottom of the fuselage for air cooling? I installed a radiator so I blocked much of the wind. I suppose I should do the same.

Thanks,

Jared

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RE: Hyperion SU 31 Build Suggestions - 3/4/2009 9:13 AM   
Hauling-A



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ORIGINAL: afterhours


Are the cutouts in the bottom of the fuselage for air cooling? I installed a radiator so I blocked much of the wind. I suppose I should do the same.

Thanks,

Jared


Jared,

It is good practice to cut cooling holes in electric powered airplanes to promote good airflow over the motor, ESC and Battery(s)
it doesn't have to be as far back as mine is-it can be just behind the wing, but you should have one. If you put one in be sure that you don't cut the stringer in two.

Jim

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RE: Hyperion SU 31 Build Suggestions - 3/7/2009 7:07 PM   
afterhours


 

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From: Spokane, WA, USA
Status: offline 		Hi Jim,

Well I'm just waiting for electronics and servos to show up then I'll post some pics and let you know how the maiden was.

I attended the quiet flyers club meeting a couple days ago and walked out with a 2meter sail plane and a Richmodel Lingcat 380.

I've been working on the cat and am trying to find the right electrics setup for it. My Hangar is growing....

Going to fly my helicopter this weekend and have some rockets to launch with the kid I mentor.

Was great to meet all the guys in the club, several offered to buddy box on the maiden and I think i'll take them up on it.



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RE: Hyperion SU 31 Build Suggestions - 3/7/2009 10:00 PM   
Hauling-A



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Status: offline 		Hi Jared, Sounds like you did allright at the club meeting. You will benefit greatly by joining a club as there is a wealth of information and help to be had. A fellow flier and I went flying Fri, as there was a break in between storm systems moving through. I didn't take the Sukhoi 31 out as I didn't get any batterys charged for It.

Be sure and let us know how your maiden turns out. Some photos from yesterdays flying.


Jim.

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RE: Hyperion SU 31 Build Suggestions - 3/11/2009 8:46 PM   
afterhours


 

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Status: offline 		Hi Jim,

Just received all my stuff. 60amp esc, 7.5a UBEC/switch. Purchased a Watt Meter. I'll have the electrics in by this weekend and will post results using different size props.

Just ordered a Hyperion 10a charger and another plane. I'm putting together a Formosa foamy to practice on before I put the SU-31 in the air!

Regards,

Jared

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RE: Hyperion SU 31 Build Suggestions - 3/11/2009 11:01 PM   
Hauling-A



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ORIGINAL: afterhours

Hi Jim,

Just received all my stuff. 60amp esc, 7.5a UBEC/switch. Purchased a Watt Meter. I'll have the electrics in by this weekend and will post results using different size props.

Just ordered a Hyperion 10a charger and another plane. I'm putting together a Formosa foamy to practice on before I put the SU-31 in the air!

Regards,

Jared


Hi Jared, Sounds good, What motor did you decide to go with? Are you using 3s or 4s Lipos? Having a watt meter is PRICELESS.

The Formosa is a good flying airplane. Good Luck with the Formosa, and I know you'll like using the watt meter to actually see the Amp draw and Watt input that you get using different props.

I'll be watching this thread to see your results. Wishing you sunny skies and light winds.

Jim

< Message edited by Hauling-A -- 3/11/2009 11:02 PM >

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RE: Hyperion SU 31 Build Suggestions - 3/11/2009 11:36 PM   
afterhours


 

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Status: offline 		Thank you sir,

Stopped at the hobby shop for some parts for the SU-31 and walked out with a Stryker wing. Our club is having pylon races in a month and I couldn't resist. So now I have another one to build. One month ago I had 1 plane. Today I have 5.

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RE: Hyperion SU 31 Build Suggestions - 3/12/2009 2:58 AM   
Hauling-A



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Status: offline 		Jared, Repete after me. Hi My name is Jared and I'm a R/C Aholic, and I know there is no known cure.(for which i'm forever greatful)

Jim

P.S. I just finished my latest airplane, a 3D Hobby Shop Asperia 46 V2. (Yes I'm also a R/C aholic)

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RE: Hyperion SU 31 Build Suggestions - 3/12/2009 7:45 AM   
afterhours


 

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From: Spokane, WA, USA
Status: offline 		What are you talking about? I don't have a problem. I just like toy planes. A lot. And please don't tell my wife.

That model is beautiful. Let me know how it flies.

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RE: Hyperion SU 31 Build Suggestions - 3/13/2009 7:12 AM   
afterhours


 

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Status: offline 		Well I took the Stryker F27C out for the maiden today. First launch I tipped it into the ground. I had the servo wires reversed. Guess I don't know my left foot from my right. I also realized I needed to turn the throw down. I had the throw set for high speed, turned it down to 85%. Got her up, did a couple circles, then lost her against the sun going away from me. Was heading toward a road so I ditched into the ground. No damage, just taped the nose back on. 3rd launch now. Got her trimmed, she climbs straight up, snap rolls but looses some altitude. I tried a loop at about 15ft and nosed into the ground. Taped the nose back on and off I went. I love the snap rolls and flying by at full throttle 5 feet off the ground. Wow this plane can move. Damn scary how fast it flies.
The 11.1v 3cell 2200 powered the hell out of it. I must have flown for a good 15 minutes. Landing was perfect, she flies well at low speeds. Damn I was excited. Hadn't flown for some time and could handle this wing just fine.

Obviously the kit is not high quality, but considering it took me about 6 hours to have it airborne and I hadn't flown for 10+ years (except for heli's) I was impressed. The wing rocks at high speeds coming out of rolls and turns but seems to hold up. I suspect the pylon races at our field in a few weeks will show us some nasty mid flight break ups and failures. All part of the fun I suppose.

You should put one together (all stock except batt can go up to 25c, can change servos and of course tx/rx) and come over for the day. Entry is $5. 100 yards apart, 15 ft high. Gonna be a blast.

Next I master the Formosa then onto the prized SU-31. She's a beauty.

I called my dad after the first battery to rub it in a bit. He couldn't believe I was flying without a trainer. Sucks to get old I guess.
Regards,

Jared

< Message edited by afterhours -- 3/13/2009 7:13 AM >

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RE: Hyperion SU 31 Build Suggestions - 3/13/2009 8:19 AM   
Hauling-A



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Status: offline 		Hi Jared, That sounds like you had a blast. I used to fly 1/2A Pylon, and I still have one of my hand-lapped Cox Tee-Dee .049's. I wish that I could make it over. We Have a fishing cabin on a lake North of Spokane and we try to get over there about twice a year. I'll give you a PM as to when we're coming over, and maybe we can get together and I would love to come down to Spokane and watch you guys fly.

Jim

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RE: Hyperion SU 31 Build Suggestions - 3/16/2009 12:49 AM   
Hauling-A



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Status: offline 		Hi Jared, Well I got a chance to fly the Asperia on Fri the 13th 09. It flew very well, as I suspected it would. I have it as a slight favorite over my Helios 25e, it's a little slicker and handles the wind better. I tried it on 3 different props, a 12x6 Xoar, 11x7e APC, and a 11x5.5e APC. the 11x7 suits my flying style the best, so now I'll start trimming the plane using the 11x7e. The Gr-35 pulled like a mule on the 12x6 Xoar, I pointed that baby's nose towards the Sun and she headed towards the Heavens like a homesick Angel.

My Set-Up ended up being;
Reaper Gr-35 B.O.
11x7e APC Prop
Scorpion Commander 6s ESC w/4A SBEC
Hyperion LVZ 4s 30c 3200mAh Lipo
Hitec HS-65HB servos on Ailerons
Hitec HS-65MG servos on Rudder and Elevator
AUW 1417.5g= 50 ozs

Wishing you sunny skys and light winds

Jim



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RE: Hyperion SU 31 Build Suggestions - 3/16/2009 4:25 AM   
afterhours


 

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From: Spokane, WA, USA
Status: offline 		Hi Jim,

Sweet. It looks fantastic, I'll put it on my list. Glad it flew well. Did you bench test the power setups prior to flying?

Is there another brand other than Hyperion you like?

I spent the day building a box for my DC power setup, carries my Lipo's in an ammo box, Hyperion charger and has a foam covered stand to place the plane on in the field. I noticed a foam vice/work stand in one of your pics. Did you build it or buy it?

I understand charging/discharging/balancing now, glad I purchased a good charger. Do you have a brand of battery you like best?

Next task is to thoroughly understand the data output from my watt meter. good stuff online.

It's been windy and rainy all weekend here, though did manage to get one flight in Saturday morning with the Stryker. I'll have fun at the pylon races and should give everyone a run for their money. The only difference is all I have are 20c batts and the max is 25c and I'm sure that will make a difference.

Went and checked out the club field yesterday. Great for slope soaring, ok for electrics. Can't wait for calm weather.

Have a good week

Regards,

Jared

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RE: Hyperion SU 31 Build Suggestions - 3/16/2009 7:09 AM   
Hauling-A



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Status: offline 		Hi Jared, Yes I bench tested all of the props that I tried. Reaper GR-35 930kv Hyperion 4s 30c 3200mAh Lipo. 12x6 Xoar prop. 578 Watts in. 43.1A. 11x7e APC Prop. 540 Watts in. 38.5A. 11x5.5e APC Prop. 527 Watts in. 37A. I didn't do any pitch speed calculations as I determine that by the way it flys on the various props. The prop that flys the airplane that closest matches my flying style is the one I use.

I have airplanes from a number of different manufactures. Precision Aerobatics, Horzion Hobby's, BH, Fliton, Aeroworks, Great Planes, Ultra-Fly, 3D Hobbies, Clancy aviation, Hyperion, Extreme Flight, etc. My favorite is probably Horzion Hobby, but with the price of ARF's the way they are I haven't been buying any of their ARF'S.

The Foam Stand is one I bought On-Line at Tower Hobbys. With out going to my shop and looking I think it's made by Robart.(But I won't swear to it)

The brand of batterys that I use the most are Great Planes Electrifly Lipos, followed by Hyperion. Another brand that one of my fellow flyers has recommended is the G-Force, but I haven't tried them so I can't say for sure as to their validity. http://www.valuehobby.com/index.php

Sunny Skys and Light Winds.

Jim

< Message edited by Hauling-A -- 3/16/2009 12:22 PM >

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RE: Hyperion SU 31 Build Suggestions - 3/31/2009 2:14 AM   
afterhours


 

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Status: offline 		Hi Jim,

We had a great time at Eagle Butte for Combat wars with our Zagi's. Wow, what a slope sight. It rained hard and didn't get much wind but when we did, it was a blast.

I maidened the Hyperion SU-31 today...........

Winds were strong, maybe 15-20. Blew this little 3d lightweight all over the place. It must have rolled 5-10 feet before take off due to lift. Snap rolls brilliantly with little or no drop. Got one sloppy knife edge in and a couple loops before I hovered it in for a landing. The runway is bumpy as hell right now so I hovered and dropped it a couple feet off the ground. Worked like a charm.

Will try to get out to the park tonight if the winds die and try some different props. All in all, this is a fun plane to fly, and I felt like I was flying something substantial (all I've flown this year is foamies until now!).

Hope you've got some air time in.

Jared

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RE: Hyperion SU 31 Build Suggestions - 3/31/2009 6:55 AM   
Hauling-A



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Status: offline 		Hi Jared,

The only day last week that we had decent flying weather, I had to do some much needed yard work, We're still cleaning up the fir and Pine boughs that the great snow storm downed.

I dug out my other Sukhoi 31, which is a BH model,(they say it's a 10e size but it's almost as big as my Sukhoi 31 25e.) and gave it a over haul, I put it on a diet and removed 4&1/2 ozs of lead from the nose. I think that the model was made for Glow power and they just put a electric type firewall in it a called it good. It's a good flying plane, but it will fly better now that it's a bit lighter and has a bigger motor in it.

I havent' got to fly it since I reworked it, so I'm looking forward to that.

Glad to hear that everything went ok with the maiden flight of your Sukhoi 31 25e, I know I enjoy flying mine a big bunch, it's one of my top 5 planes.

Hope we have some decent flying weather soon.

Jim

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RE: Hyperion SU 31 Build Suggestions - 4/1/2009 1:50 AM   
afterhours


 

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Status: offline 		took the SU-31 to the park last night for some video for my dad. Did some nice aerobatics, then lost it due to darkness. She's in a better place now.....
I think all the electrics are in working order.

I ordered another one (not to be defeated). Rules I have learned in the last couple months:
1.Always bench test, then test again and again.
2.Always verify radio program at least twice before flight
3.don't fly when it's too dark to see the contrasting colors on the plane.

My motor showed up today for the Formosa so it'll be my next flight project.

Can you list your top 5?

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RE: Hyperion SU 31 Build Suggestions - 4/1/2009 5:32 AM   
Hauling-A



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ORIGINAL: afterhours



Can you list your top 5?


Hi jared, Sorry to hear about the loss of your Sukhoi 31-25e. I always feel bad after I lose one of my airplanes, and especially bad if it was because of something I did.

Of all of the planes I currently own, my top five are;

1. Aeroworks StingRay, I lost my first one due to a overtaxed ESC. Now I use a larger ESC then I really need, but better to err on the safe side. I built another Stingray, but it doesn't fly as good as the first one, due to a mis-aligned vertical stab, it's out of plumb by 3mm (factory installed) I will build another one.

2. Extreme Flight Vanquish F3A. All I can say about this plane is WOW. I'm still in the process of trimming this airframe, but when I get it flying like it's supposed to, My wife will have to slap the silly grin off of my face when I come home from the flying field.

3.Aspera. This one is hard to pick, as I have two airplanes that are 99% equal. The Helios 25e and the Aspera. I have to give the Aspera the edge in wind penetration, other then that They seem about the same to me.

4. Hyperion Helios 25e F3A. Another good flying airplane.

5. Hyperion Sukhoi 25e. It's number 5 only because my first love is pattern flying and then 3D.

Jim


< Message edited by Hauling-A -- 4/1/2009 5:46 AM >

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RE: Hyperion SU 31 Build Suggestions - 4/1/2009 5:42 AM   
afterhours


 

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Status: offline 		Here's A link to the Stingray at their website. I added one to the shopping cart, looks like you can still get one. I think I'll add to my list.

http://www.aero-works.net/store/detail.aspx?ID=256



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RE: Hyperion SU 31 Build Suggestions - 4/1/2009 5:56 AM   
Hauling-A



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ORIGINAL: afterhours

Here's A link to the Stingray at their website. I added one to the shopping cart, looks like you can still get one. I think I'll add to my list.

http://www.aero-works.net/store/detail.aspx?ID=256




Thanks Jared, Looks like I need to check their site more often. I edited my text in the previous post about the availabilty of the StingRay.

If you do build one, I would suggest that you provide some extra cooling to the cowling. Here's both the first one and the second one.

This is what I did on the second one. I think it makes it look more like a StingRay.

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RE: Hyperion SU 31 Build Suggestions - 4/8/2009 6:40 AM   
afterhours


 

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From: Spokane, WA, USA
Status: offline 		Hi Jim,

We had Pylon Races at the field on Sunday. Rules were the stock Stryker F27C (brushless), no more than 25c 3s batt.

There were 7 of us, I took 2nd. I got passed on the last turn of the last lap to lose. I forgot to swap batteries for the final race and my stryker slowed down with a couple laps to go. Oh well, I beat the owner of the LHS who is a pro pylon racer and a couple other racers.

Got 5 or 6 flights in with my Formosa. What a fun plane to fly, with the Turnigy motor, 8X4 APC E and a 2200 20c batt, unlimited vertical and mad speed.

Hope to have my SU31 II ready for flight this Saturday. We're setting up a winch system so I'll mess around with my Gentle Lady a bit. Hope the weather is great on your side of the mountains, it's been pretty righteous over here for the last few days.

Regards,

Jared

< Message edited by afterhours -- 4/8/2009 6:41 AM >

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RE: Hyperion SU 31 Build Suggestions - 4/8/2009 7:46 AM   
Hauling-A



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From: Port Orchard, WA, USA
Status: offline 		Hi Jared, Indeed it sounds like you have been taking advantage of the "nicer" weather that we've been having of late. It's starting to

cloud over here on the coast, so more showers are likely for the rest of the week.

Way to go Jared on the Stryker Pylon races, when you can beat the pros it's a good day. Congradulations.

The Formosa is a good plane to practice precision aerobatics with. As a foam park flyer it's a lot of plane for very little money.

Glad to hear that the Sukhoi-31-25e build is coming along ok. I really enjoy flying mine.

I took my Sukhoi-31-10e out (along with a few other planes) Sun and flew it for the first time since I re-worked it. It flys Ok, but I think I

still need to go to a heavier motor with more watt output, that will let me remove some more of the lead ballest in the nose. (I still

have 2-1/2 ozs up there, down from 7-1/2 ozs due to the bigger battery and motor) I'm going to set it up with a 25e size power system

Then it should fly like it's supposed to.

Let me know how the Sukhoi-31-25e works out.

Wishing you sunny days and light winds.

Jim

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RE: Hyperion SU 31 Build Suggestions - 5/7/2009 11:12 AM   
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From: Denver, CO, USA
Status: offline 		Just a quick question on the 25 size Hyperion Sukhoi 31.

I just recently crashed my 25 size Hyperion Yak 55. but am considering replacing it with the Sukhoi. I am looking at the Sukhoi instead of another Yak because I had a hard time getting my CG far enough back on the 55 due to the wingtube restricting travel of the battery to the aft.

On the sukhoi, is it possible to get the battery positioned across the wing tube?

Thanks

Steve

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