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Old Dec 27, 2010, 09:32 PM
Defender of the park sky
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I still can't decide on a power system yet for my edf, I keep flip flopping on Hobby King great deals and the hopefully superior brands... So I bought a Spektrum DX7 today as I had a DX5e which as you know can't do anything but trim the regular controls. I think skipping the DX6i for the 7 opens some doors as I swoon over retracts, flaps, vector, etc. for future planes. I'll try expo even though to date I've been happy making sensitive inputs with my thumbs only. That might change at EDF speeds...
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Old Dec 27, 2010, 10:42 PM
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if it makes you feel any better, I don't use expo at all on any of my planes, even on my EDF's. I learned without it and still fly without it to this day. congrats on the DX7...........it's a good purchase for you. talk to Gary at Efflux RC about your setup. he's not as cheap as Hobby King, but you get what you pay for, no matter where that is. if you buy from Gary, you'll be getting a great setup at a reasonable price. just my two cents.

Rich
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Old Dec 28, 2010, 09:29 AM
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Originally Posted by flyingwing12 View Post
Thats a good theory my friend.

Maybe the Military is deigning these planes and they don't work so they send them to be rc airplanes!>

LOL just messin...
could be possible about the military, doubt it, but all RC stuff comes from military tech, so in the long run it is the military
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Old Dec 28, 2010, 12:29 PM
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Originally Posted by LuvEvolution7 View Post
if it makes you feel any better, I don't use expo at all on any of my planes, even on my EDF's. I learned without it and still fly without it to this day. congrats on the DX7...........it's a good purchase for you. talk to Gary at Efflux RC about your setup. he's not as cheap as Hobby King, but you get what you pay for, no matter where that is. if you buy from Gary, you'll be getting a great setup at a reasonable price. just my two cents.

Rich
Thanks for the lead, I'll contact Efflux RC. I'd pay extra for a balanced and reliable set-up, even if it's not 100mph flat and level (80mph with good thrust for hand launching would make me happy). As for expo, I'll probably not use it at first, then I'll max out the throws and use it. At least that is the plan. But yeah, I've had no issue without thus far.

Matt
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Old Dec 28, 2010, 12:54 PM
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Good Lord Rich! Just looking at Efflux 70mm stuff, I think it would rip the wings off my nitroplanes F-4!!

That is some seriously awesome gear. Is it mainly for composite builds? I'm taking a second look at the chinese epoxy holding my foamy together... hrmmm lol
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Old Dec 28, 2010, 04:21 PM
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Quote:
Originally Posted by Ispintechno View Post
I still can't decide on a power system yet for my edf, I keep flip flopping on Hobby King great deals and the hopefully superior brands... So I bought a Spektrum DX7 today as I had a DX5e which as you know can't do anything but trim the regular controls. I think skipping the DX6i for the 7 opens some doors as I swoon over retracts, flaps, vector, etc. for future planes. I'll try expo even though to date I've been happy making sensitive inputs with my thumbs only. That might change at EDF speeds...
Had I known you were looking for advise I would have said to skip the DX5e $99.99 and the DX7 $299.99 and go to a Aurora 9 $429.99 or the more expensive with less functions $549.99 9305 for the same money.
If you got the A9 from tower you would get an additional $60 off.

Don't get caught up buying a little radio at a time. If you are interested in the hobby get a good radio up front. Its saves you money in the long run. A good 9 channel will cover most things till you really start playing with individual surface mixes or lots of Scale extras.
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Old Dec 28, 2010, 04:32 PM
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Quote:
Originally Posted by Ispintechno View Post
Good Lord Rich! Just looking at Efflux 70mm stuff, I think it would rip the wings off my nitroplanes F-4!!

That is some seriously awesome gear. Is it mainly for composite builds? I'm taking a second look at the chinese epoxy holding my foamy together... hrmmm lol
LUVE is right. Durable, balanced, efficient setups are worth the investment. The power levels that you see from HK offerings is trying to achieve what Wemo, Sapac, Velocity etc are achieving. They fail to do so mainly due to inferior material construction.
They will only blow your wings off if you set it up to do so.... which I hope you don't have in mind. But a good epoxy job on the foam wings is aways a good idea.

As for expo.... Rich can chime in but he's likely doing something that many often overlook; proper linkage setup. You don't need expo if you setup up the servo to swing its full span to only achieve the max throw required.
Inside hole on the servo arm and on or as close to the outside hole on the control horn.
As your travel decreases the ratio of length needed between the servo arm position vs the horn position should change. Thus you can move a lot on the stick but move very little on the surface giving you the highest resolution and mechanical advantage you can get from the mechanical setup.
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Old Dec 28, 2010, 05:16 PM
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Thanks for the advice Max. Well, I'm hoping the DX7 would be the radio to help me spread my wings, sort of speak. I'm currently flying 4 channel airplanes but after the Phantom I'll be buying a 6 channel (flaps/retracts). More channels the better on the TX, I agree... The amount of programing looks about right reading the DX7 manual... to me... so far. I don't doubt your experience though.
Oh, the DX5e came with the Parkzone Corsair, it was a RTF and my first 4 channel bird. I'm actually glad I have it as I'll buddy box it to the DX7 to teach my dad, he's been struggling a bit on his own (needs more sim time).

Yeah, the videos for Efflux I saw where running 6S lipos, probably too much, but buying a fan/motor from the get-go that can handle it is a pretty sweet idea. I'm definitely starting with a 70mm on 4S though. I think I agree the feeling of the hobby king stuff would be that its extremely flimsy. I couldn't order it because I had a bad feeling it would come apart in flight. I'll heed your warnings of crappy materials and save up a little more coin.
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Old Dec 28, 2010, 07:59 PM
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don't forget that you can run these setups on less cells, if that's what you require. talk to Gary and he'll point you in the right direction, as far as cells and kv ratings. you won't be disappointed buying from him. you may however, be incredibly disappointed if you buy from Hobby King. none (or very few) of their stuff is gonna come balanced and that can be a real chore, especially if you are inexperienced at balancing. it's like anything else, you get what you pay for, right? if it were me, I would be buying the WM400 with the correct Kv motor for 4S/5S operation. you can always power back and float around on less throttle stick. this just means longer flight times, which is a win, win in my books. also ask about the skyworld fans that he sells, cause they aren't bad either, but the WM is absolutely killer AND, you can always buy a larger Kv motor and put that WM in another plane down the road and be absolutely blown away with speed.

you are right Glenn, I do set up my linkages properly, so I don't need expo. like I said, that's the way I was taught years ago and I still do it today. as you said, you don't need expo if linkages and servos are set up right from the get go, but most fail to do so, so expo is the cheaters way out. LOL. by the way, did you hear anything about the Tornado yet? it looks like a sweet bird. I was gonna buy a used Boomerang, but I'm gonna go with the Tornado instead. what a deal!!!!
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Old Dec 28, 2010, 08:21 PM
Defender of the park sky
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Thanks for the help!
I'll follow your instructions, just have to replenish the bank account after the holidays
Hobby king is out, just reading a very interesting thread about these 70mm power systems http://www.rcgroups.com/forums/showthread.php?t=1349100

I'll try the F-4 Phantom linkages all in the middle holes for the servo arms and the control horns with no expo for the maiden. If I need more elevator or aileron I'll take it from there, change the control holes at the flight surfaces, not at the servo?
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Old Dec 28, 2010, 09:38 PM
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moving out at the control surface, will decrease control input, which will increase stick movement. this will basically add expo, without programming the radio. moving in at the control surface will add control input and decrease stick movement. this will give you fast rate of control and will probably make you want to program expo into your radio. I set up my planes for maximum stick movement, with less control, whcih is basically expo. then after I get used to the plane, I decrease the holes at the control surface, but I don't add expo on the radio. I still fly without expo, even on my 3D planes.
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Old Dec 30, 2010, 01:11 AM
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The color of it!

I know the fancy ghost gray paint jobs look great but they are very easy to lose oration on or just lose sight of period, they move fast so it does not take long for them to turn into a gray dot that blends in with the sky so for your first one get something colorful
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Old Dec 30, 2010, 03:02 AM
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OR, paint it in the colour scheme of your choice and/or simply put pieces of bright tape on it for your first flights, till you get used to the shape and orientation of that shape. that's what I did with my Eurofighter, which is a grey shape that blends in well against the sky.
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Old Dec 30, 2010, 12:48 PM
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I already put two red tape lines on under the wing. I might add a little red to the vertical stab. In hindsight camo would have been the better scheme.
I'm 32 but I still have 20/20 eyesight, I've brought my little UM P-51D ridiculously far out and brought it back. The worst part for me is sunset, I've almost lost my corsair a few times when it's far out and turned into a silhouette. It was memory and thankfully instinctively pushing the controls in a way I think the plane is going that saved it, however my heart hit the back of my throat on every occasion.
I'll fly this low visibility scheme in close and at the right time of day in the beginning. Need be I'll add more colour markers.
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Old Dec 30, 2010, 01:44 PM
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use some yellow tape on the top too. LOL.
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