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Old Aug 09, 2012, 11:52 PM
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Australia
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Quote:
Originally Posted by hate2crash View Post
Thanks for all gyro responses...Anyone here ever fly hobbyking 64 mm stinger... the kit has great ratings and is all screwed together..stock fan,motor and esc hold up well on 1600-2200 amh 3s...stock speed is over 70mph..PNP is $89...not a military edf,but a very nice jet nice lines...Just wanted to know if anyone flew or owned it and how it compared in flight characteristics to the t-45...thanks
I was watching one at the field yesterday arvo. It flies beautifully, glides well. No bad habits that I saw. The stock EDF smoked up on about the second flight. So perhaps the ARF kit is a better buy. He also reported one tip stall incident, but I watched it yesterday flying fast and slow. His was pretty quick because after the outrunner failure he could not separated the loktite on the fan, and ended up just buying a Lander 10b EDF and gave it lots of speed.

Mick

ps- The T-45 is much larger and hence more managable I think, but I havnt flown the Stinger.
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Old Aug 10, 2012, 01:57 PM
Just an Earth bound misfit - I
vanderbrander's Avatar
Canada, ON, L'Orignal
Joined Nov 2010
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I have both T-45 and the Stinger. Both fly great, but have completely different characteristics.

I fly both on the same setup. 4S 2200 with a GWS 64mm fan and ERC 2445 motor.

The T-45 is my go to fun plane when I want to have a relaxing flight with good aerobatic performance, or if it's really windy (the T-45 handles +15kmh winds no problem at all). The T-45 is great for practicing jet aerobatics because it is so forgiving. I use this aircraft to sharpen my flying skills if I haven't flown for a while.

The Stinger is a lot smaller and faster (around 100mph). Consequently it gets very small, very quickly and is more of a handful on landing. Not your best bet for a first EDF.

I luv both these jets for two completely different reasons but for a first EDF, the T-45 can't be beat.
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Old Aug 10, 2012, 05:54 PM
no more glow models for me!!!!
iflyrc1012's Avatar
bklyn n.y.
Joined Jan 2008
881 Posts
hate2,
the stock stinger is smaller than the t-45.... on 3 cells it tops out at about 85mph or so...
because of it's small size it seems to be a lot faster than the t-45....the stinger is a lot more maneuverable than the t-45, i have never bothered to put a 4 cell in the stinger for 2 reasons,
1) it didn't need the boost in speed, i think it flies fine on 3 cells
2) i don't think the stock e.s.c. will handle the extra voltage of a 4 cell...
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Old Aug 11, 2012, 01:07 AM
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Joined May 2010
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Thanks for the HK stinger reviews guys...Yes it is a good deal smaller ten t-45,but i figured i could keep it closer and go slow untill i get used to it and gradually up the speed and the manuvers...and i have 4- 3s 1800 packs already i use in my trainers...t-45 is nice and a lot of guys says its the best starter...I also watched the dynam meteor 70mm video's as well as HK 70mm sport jet ,which is a clone of the meteor basically ...Anyone here like or flew those models... I think they are approx same size as t-45 and stock setup seems very good power...thanks
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Old Aug 17, 2012, 12:12 AM
DONT PANIC! :)
out of stock's Avatar
United States, FL, Lehigh Acres
Joined Jan 2012
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yoooo! just kidding

hello people im joining the hk t45 thread. im just about to place an order through hk. whats the usual wait time on ems delivery to usa? (florida)

i heard its like 2 weeks. true?
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Old Aug 17, 2012, 12:56 AM
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USA, MD, Frederick
Joined Jan 2010
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I've always used regular air post ... took about 4 weeks.
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Old Aug 17, 2012, 04:12 AM
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Singapore, Singapore
Joined Jul 2012
39 Posts
bench test

Did a bench test on my 64mm T45 EDF using stock 4500kv motor, cheap Hobbywing 60A ESC, Thunder power 3s 220mah 25C battery:

Half throttle for 2min
Running current:23A
37deg c on ESC
34deg c on motor
52deg c on battery
Draw 720mah from batt

Full throttle for 2min
Running current 18A
40deg c on ESC
32deg c on motor
46 deg c on battery
Draw 555mah from battery

Full throttle for 3min 40 sec
Running current 23A
40deg c on ESC
33deg c on motor
62deg c on battery.
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Old Aug 17, 2012, 04:28 AM
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Austria
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Quote:
Originally Posted by perfect1 View Post
Did a bench test on my 64mm T45 EDF using stock 4500kv motor, cheap Hobbywing 60A ESC, Thunder power 3s 220mah 25C battery:

Half throttle for 2min
Running current:23A
37deg c on ESC
34deg c on motor
52deg c on battery
Draw 720mah from batt

Full throttle for 2min
Running current 18A
40deg c on ESC
32deg c on motor
46 deg c on battery
Draw 555mah from battery

Full throttle for 3min 40 sec
Running current 23A
40deg c on ESC
33deg c on motor
62deg c on battery.
Something is wrong with your way to measure current.

2min full power show 18A
While half power is 23A ...

You need a WATTmeter ... and you should report both Voltage and Amps (each battery has a different way to push out power)

50% throttle numbers are not much usefull ... 50% for you is different then real 50% , and 50% for somebody else ... is radio and calibration specific ..

Tchuss

e_lm_70
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Old Aug 17, 2012, 09:25 AM
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Singapore, Singapore
Joined Jul 2012
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sorry for my mistake. typo error. It should be half throttle 18A and full throttle 23A. I use a DC clamb meter to measure the current flow at the battery lead. Also for full throttle for 3min plus, i put back about 1200mah to the battery after charging. Thanks for pointing out my mistake.
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Old Aug 17, 2012, 09:53 AM
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Austria
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23Amp .. at full power ... it sound way to little.

How many volt do you read from your battery under load ?
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Old Aug 17, 2012, 09:54 AM
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Singapore, Singapore
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i did not measure the voltage.
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Old Aug 17, 2012, 09:58 AM
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Singapore, Singapore
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Quote:
Originally Posted by e_lm_70 View Post
23Amp .. at full power ... it sound way to little.

How many volt do you read from your battery under load ?
How much current are you drawing with your T45 during full power?
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Old Aug 17, 2012, 10:29 AM
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Austria
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Quote:
Originally Posted by perfect1 View Post
How much current are you drawing with your T45 during full power?
I don't really remember ... I somehow remember of over 30amp.

My timer is set to around 4min ... and this consume more then 2400mAh ...so ... this means I consume over 30A at full power with full capacity in the battery.

Maybe in some old post I already written my number ... or other did report their current and voltage

I have no charge battery now ... so not going to test my T-45 now ... but maybe later.

Tchuss

e_lm_70

ps: Already the little T-45 50mm consume 18Amp at full power ... so ... your number sound suspicious ...
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Old Aug 17, 2012, 11:18 AM
DONT PANIC! :)
out of stock's Avatar
United States, FL, Lehigh Acres
Joined Jan 2012
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Quote:
Originally Posted by fredmdbud View Post
I've always used regular air post ... took about 4 weeks.
Dang! 4 weeks is pretty long lol isn't ems suppose to be pretty quick? Like 7-8 days? ??
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Old Aug 17, 2012, 08:05 PM
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USA, MD, Frederick
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Originally Posted by out of stock View Post
Dang! 4 weeks is pretty long lol isn't ems suppose to be pretty quick? Like 7-8 days? ??
Patience is a virtue. And so is being a cheapskate
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