|Sep 14, 2012, 09:50 AM|
I have both the Dynam and HK 1400mm Sbachs and they both are great. Personally if I could only get one I would choose the HK one hands down.
My Dynam is pretty nimble and performs everything i know and then some, but its the sloppy flat paint kinda bothers me. Even after spraying polycrilic its nowhere near as pretty as my HK one. Yes the HK one uses water decals on the wings and yes i have some bubbles, even more now due to heat, but wow it sure is pretty and is a crowd pleaser.
I'm glad i have both though. Seriously both planes combined is still cheaper than a Carbon-Z Yak. Hell they were each cheaper than a UMX Sbach!
|Sep 15, 2012, 01:37 AM|
Re-build and re-maiden success! After spending last Sunday with some epoxy, microballoons, birch rods, gorilla glue, packing tape, new servos all around, a new 14x7 JXF wooden prop, and the jigsaw pieces of my Sbach, I got to re-maiden it today. I remembered to check the throws this time, and it was a big baby when I got it trimmed in.
I did spent the first 2 minutes in terror though as I constantly held in elevator and aileron to keep the bird flying. I think she may be nose heavy, I had 8 clicks of up elevator to keep her flying straight and hands-off at 50% throttle, and inverted flight required a fair amount of down elevator.
But WOW does this bird fly nice. My first aerobatic plane, so I didn't know what to expect and I didn't have a point of reference. Straight up, no hesitation. Get into trouble? Gun the throttle. Up/down orientation is easy to determine. Rolls are quite axial, and rudder has hardly any coupling. Stalls like a big baby, nose up and then nose down with wings level, and it takes quite a while to reach the stall from half throttle too. Did my first knife edge that could actually be called a knife edge, and it only needed some down elevator to keep it trim.
6-7 minutes of flight eats about 2500mah on the 4S that I bought. That's plenty of buffer for if/when I need to delay a landing.
I don't expect her to last very long as I practice on her. But pretty happy about what I got so far.
|Sep 15, 2012, 11:31 AM|
|Sep 15, 2012, 12:23 PM|
"btw servo's extremity and foarm"
Not sure what that means
|Sep 15, 2012, 03:34 PM|
|Sep 16, 2012, 08:15 AM|
Put 6 more packs through this baby today. So nice to fly! Have been slowly increasing the rates and getting a feel for the flying characteristics. Evening flight had a lot of wind that tipped one wing over on landing, causing a bounce and a cartwheel. Luckily, everything was fine.
I bought the 3000mah and 3300mah 25-50C nanotechs for this bird. I land after 7 mins. I temped the ESC and motor after landing - ~45-50 degrees C, not too bad.
I have, however, noticed that the batteries are all surprisingly warm to the touch. I thought I had plenty of buffer - with the 14x7 JXF prop I pull 68 amps on static WOT with a full charge, and this should be well within the C rating of the batteries. Can I get people's input on how warm their battery comes down after a flight?
|Sep 17, 2012, 09:24 AM|
the famous aileron´s servos here, mark hitec , is necessary cut the epo?
And then, the hobbyking´s servos for rudder and elevator, are quickly?are good?, other recomendation?
|Sep 17, 2012, 11:31 PM|
Australia, SA, Two Wells
Joined Feb 2012
|Sep 17, 2012, 11:49 PM|
My max amp draw is 52 A downlinked to my Aurora 9 TX. I run Sky lips 3300 4S 30C and slightly warm. My ESC is max 98 deg F on a 95 degree day. Stock ESC, motor and prop. Servos all Hitec HS81
|Sep 19, 2012, 04:58 AM|
I read this post for 2 days , looking for information of servos, spinner , motor
I think is important tht all information is a list:
hitec hs-82(metal gear)
hextronic mg-14 8,29$
hitec hs-65(metal gear) 26,21$
Rudder & elevator:
hxt(metal gear) 7,97$:
Adapter prop(the size adapter is 70mm)
how put the stock adapter prop?
The push rods are 1,5mm
user teknokraze in post 421(
props is tough, not only do you need to figure out which diameter/pitch works well, but not all props are created equal either. Did a little test just now, take note of the attached image below.)
Note: I have a Turnigy 4258-800kv motor mounted in place of the original so not sure what difference in efficiency might be there so your results may be different. This test is just to show the difference between like diameter/pitch props and their style/materials in manufacturing.
Unknown Make 13x8 (weight - 30g)
Draw: 74A - 1110w - 6.7lb (3041g) Thrust
APC-E 14x7 (weight - 30g)
Draw: 70A - 1007w - 7.1lb (3223g) Thrust
Master Airscrew Electric Only 13x8.5 (weight - 32g)
Draw: 86A - 1187w - 8lb (3632g) Thrust
**(Correction, the Master Airscrew I tested is a 13x8.5 - Sorry for the erroneous info)**
TGS Sport 14x7E (weight 45g)
Draw: 74A - 1090w - 6.8lb (3087g) Thrust
JM APC Style 14x7 (non-electric, weight 70g)
Draw: 79A - 1153w - 8.5lb (3859g) Thrust
Didn't have a wood propeller to test, wish I would have as I think they have a high efficiency to weight ratio.(the stock size is a 13,8
whit stock motor people put to 14 ,8)
Master 13*8 3,79$
Tgs sport 13*7(3,57$):
Turnigy Ultra-light wood propeller 14*8(3,56$):
Turnigy Ultra-light wood propeller 13*8(2,98$):
Canopy lock(essencial for this model)6,44$):
img of stock motor (derivated to right, is normal):
turnigy plush 80 (40$):
the rating is very bad, but you can see an opinion user
Alloy Adjustable Horn (2,95$):
Instructions for programing the stock variador:
*note*, the stock conection variator is :hxt 4mm
somebody have a 70 esc and other have a 80esc
this list no finish yet
I need help for recomendation about motor, I think spoke only 46 turnigy motors and g36(very heavy), more information?
this night will finish, and need information landing , and the plastic of wheels and wheels,my english is bad(jeje)
|Sep 19, 2012, 06:43 AM|
I looking for spinner:
the diameter is 70mm, but i have a 5mm hole, and there aren´t with this size
How i can put?
|Sep 19, 2012, 06:51 AM|
The linked spinner has an 8mm mounting hole. Sometimes, spinners come with adaptors for use with different sized motor shafts. I can't see one on this one, so I do not believe it will fit the stock shaft, which is 6mm in diameter. If someone knows otherwise please correct me.
Dubro spinners have adaptors for use on different sized shafts. They are typically in imperial, not metric units, but seem to work out fine. I have bought one as a spare in case my current spinner self destructs.
|Sep 19, 2012, 06:59 AM|
edit, I will buy dubro in ebay no?, thank rayonnair
http://www.duanesplanes.com.au/produ...?productid=972, here only 6mm hole adapt
The stock plane mount 5mm
Other question, my wheels pant broken, I think imposibble buy other
|Sep 19, 2012, 07:12 AM|
I don't know of any online sellers of dubro products, sorry. Maybe find a dubro dealer near you.
My wheel pants broke on a crash, warping the plastic. I epoxied it back together and it is fine now. Epoxy is surprisingly strong. Depending on the kind of break you had, you may be able to epoxy it back together again also. As long as the connection between the wheels, the screw, and the metal landing gear itself is not broken, you should be OK to land without pants too.
It sounds like you had a crash? If so I feel for ya, I crashed mine on maiden, the entertaining video is at post no. 1150.
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