Originally Posted by hate2crash

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.

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.

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...

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

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?

I've always used regular air post ... took about 4 weeks.

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.

Originally Posted by perfect1

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

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.

23Amp .. at full power ... it sound way to little.

How many volt do you read from your battery under load ?

i did not measure the voltage.

Originally Posted by e_lm_70

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?

Originally Posted by perfect1

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 ...

Originally Posted by fredmdbud

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? ??

Originally Posted by out of stock

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