RunRyder RC
WATCH
 113 pages [ <<    <     109     ( 110 )     111     NEXT    >> ] 110185 views Post Reply
Home✈️Aircraft🛩️Fixed-WingFixed-Wing Main Discussion › The official plank thread.
04-08-2012 06:27 AM  9 years ago
Spitfire1

rrElite Veteran

Perth Australia

MyPosts All Forum Topic
Is that hacker motor rated to 90+ amps?

Im haveing trouble with my electric setups on aerobatic planes useing hobby king motors, My turnigy easy match 160 size is 290kv on 10 cells and rated to about 80 amps, even with a 18/8 prop on my 30cc size sbach I am haveing to resort to setting my top throttle endpoint to 30% in order to get the amps to about 80 amps, at 100% throttle endpoints it peaks at 120 - 130 amps and huge watts, blown one esc already.

Even when I my 245kv rotomax gas conversion motor with larger props 19 - 20,21 inch e.t.c I still end up with huge amps, smaller prop ends up being under powered.

I was thinking of a 16 or 17 inch prop, but isent that too small for a 30cc size plane? or would it be OK?
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-08-2012 01:37 PM  9 years ago
fla heli boy

rrElite Veteran

cape coral, florida

MyPosts All Forum Topic

my brand new baby. Left is mine, to the right is as she'll look when done. 30cc DLE motor, should come in at 10.5 lbs. She'll be a rocket ship.
Very well made. Nice work all the way around and everything is tight, tight, tight. My best bud bought the same with a different scheme.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-08-2012 01:57 PM  9 years ago
racin06

rrKey Veteran

Indianapolis, Indiana

MyPosts All Forum Topic
Spitfire1,

The Hacker A60-16M is rated to 55A peak. However, if you are not aware, the Hacker motors are extremely underrated. Many are running the A60-16M to 90+ amps/3,500 watts on 10S with no reported problems.

Regarding your 30cc electric setup. I wouldn't go less than a 17" prop. I run an 18 x 8 on my 8S powered 3DHS 72" Extra 330SC. The only choice you really have is to purchase an ESC that can handle high currents such as the Castle Creations ICE 160HV. Also, take a look at the Hobbywing Platnium Pro 120A HV ESC, which is rated to 180A peak.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-08-2012 09:27 PM  9 years ago
racin06

rrKey Veteran

Indianapolis, Indiana

MyPosts All Forum Topic
Also from last evening's flying at our club, my friend Orrin maidening his SebArt 60" Macchi MC-72. A nice float plane! Next week, Orrin will be flying off the water for the first time, as well.

Watch at YouTube

SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-09-2012 02:29 AM  9 years ago
fla heli boy

rrElite Veteran

cape coral, florida

MyPosts All Forum Topic
I know it's all opinion, but something inherently wrong with electric planks IMO. Helis...fine, planks....not so much. Again, just my opinion. KInda like a classic car with a 4 banger as opposed to a big block.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-09-2012 02:34 AM  9 years ago
hbk2owner

rrKey Veteran

indianapolis, Indiana

MyPosts All Forum Topic
So i borrowed a prop from a friend of mine so i could start up my gasser. By the way i got a zenoah g62 for it. Anyways i was messing with it and i decided to try out the spring starter. So i wound back the prop. I was about to let go. guess i didn't get my hand out of the way fast enough. It whacked my hand. broke the prop. Made a scratch and a bruise on my hand. didn't feel very good at all. That prop hit my hand full swing. There was no fuel in the tank either. Just a FYI. Next time i play i will use a glove.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-09-2012 02:44 AM  9 years ago
fla heli boy

rrElite Veteran

cape coral, florida

MyPosts All Forum Topic
my dad put a new carb on his DA150 and after 50 years in the hobby, hooked up the linkage backwards by mistake. Fired up at full throttle. In order to not lose the family jewels, he reached over the top to stop it and the 32 in. carbon prop took his thumb. Yeah, not a toy. No left thumb for the old man. He's getting by with planks, but the helis are a bitch for him now.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-09-2012 02:54 AM  9 years ago
racin06

rrKey Veteran

Indianapolis, Indiana

MyPosts All Forum Topic
Below is today's video of my friend Umit flying his Peak Model 75" 26% MXS-R on the first flight with the DLE 55cc engine. At 1:45 into the video, the right wing/aileron begins to shake violently. Umit decided to set the airplane down immediately. Unfortunately, Umit was out of runway and dumped the MXSR into the adjacent crop field, which resulted in the landing gear being torn away from the fuselage and a few areas of torn covering...all very repairable...a testament to the excellent quality and durability of the Peak Model airplanes. After further inspection, we discovered the cause of the right wing shaking was the result of the right servo arm coming loose from the servo. Umit and we others at the field soon realized that he could have probably flown around again and landed without incident. We all live and learn with this hobby.

Watch at YouTube

SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-09-2012 03:39 AM  9 years ago
VKGT

rrElite Veteran

Sanford, NC

MyPosts All Forum Topic
Sucks about the crash but at least it can be rebuilt
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-09-2012 04:09 AM  9 years ago
fla heli boy

rrElite Veteran

cape coral, florida

MyPosts All Forum Topic
wow, I just bought a 25% MSXR (78" span) and it's rated for a DLE 30 and I bought it at the Huckfest from the distributor and he said it's borderline overpowered with a DLE 30 (comes in at 10.5 lbs.). Me thinks maybe your buddy's got too much ass in that thing.
BTW ....what servos are you guys using in your 25%er's??? I've been told 120 oz'ers all the way around, but I've also been told that's overkill on some surfaces. I'm thinking that's about right for everything but the rudder, which I would double down on with the pull/pull.
Opinions??? I'll be going Hi-Tec digital with my new DX8 all the way around BTW. Still deciding on flight pack voltage. Could use an opinion on that as well. Guy I bought it from likes to run a HV pack with a reducing diode to the ignition so you can run one pack and keep the weight out.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-09-2012 04:23 AM  9 years ago
GREYEAGLE

rrElite Veteran

Flat Land's

MyPosts All Forum Topic
exactly CORRECT : along with the aggressive yank and bank flying style, High G's out of the split S along with Piles of Roll.

Any thing that violent I's check to see what's left of right the spar.
greyeagle
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-09-2012 04:47 PM  9 years ago
racin06

rrKey Veteran

Indianapolis, Indiana

MyPosts All Forum Topic
wow, I just bought a 25% MSXR (78" span) and it's rated for a DLE 30 and I bought it at the Huckfest from the distributor and he said it's borderline overpowered with a DLE 30 (comes in at 10.5 lbs.). Me thinks maybe your buddy's got too much ass in that thing.
BTW ....what servos are you guys using in your 25%er's??? I've been told 120 oz'ers all the way around, but I've also been told that's overkill on some surfaces. I'm thinking that's about right for everything but the rudder, which I would double down on with the pull/pull.
Opinions??? I'll be going Hi-Tec digital with my new DX8 all the way around BTW. Still deciding on flight pack voltage. Could use an opinion on that as well. Guy I bought it from likes to run a HV pack with a reducing diode to the ignition so you can run one pack and keep the weight out.
Yes, that 55cc engine is alot of ass . Actually, he had a DLE 30cc on the MXS-R and wanted more power. Regarding servos for 30cc airplanes, I have the Hitec HS-985MG servos x 4 on my 3DHS 72" Extra 330SC and running them at 6V...177 oz/in. of torque...very good servos.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-10-2012 12:38 PM  9 years ago
Spitfire1

rrElite Veteran

Perth Australia

MyPosts All Forum Topic
fla heli boy.

the draw back I find with electrics is flight time, what I also found with smaller lipos 2000 4 cells e.t.c you could keep flying due to 5c charge rates with smaller packs, Im finding with larger 8, 10 or 12 cell setups for bigger planes to sets of packs doesent cut it because your car battery can only really charge two large packs at 1c, so 2 lipos ( 4* lipos is not enough if its the only plane you have at the feild.

Im not sure with aerobatic and warbirds if the flight time of electrics is really too much less than comparible gas planes, I think its just generally with electric the option is there to over power the plane causeing low flight times.

As far as the sound of prop planes I actually prefer the sound of an electric (in the bigger stuff 30cc +, but thats just personal opinion.

The big thing people always use to prop up gas over electric is being able to constantly fuel and fly all day long, Ive found when you get the right setup and correct amount of bats you can pretty much fly continuously.

The other thing for me is turbine jets is really where I want to get to in this hobby, and large 90mm - 120mm electric jets are the only way of really gaining any jet flying experience at an acceptable cost before going the full hilt and going into turbine jets, only problem at the moment is electric jets only fly for 4 minutes, but for roughly $1500 you can set yourself up with a nice 90mm composite jet, where turbines cost $1500 - $3000 just for the turbine, then theres the airframe, electric jets 90 - 120mm may not come close to a turbine but its the closest to it at a fraction of the cost.

I find my 30cc aerobatic at full throttle sounds like it has more balls than a 30cc gass plane, but thats just my opinion.

I also "recon" that if you find the right electric setup thats provides equal power to its equivalant gas motor, you would be looking at 10 minutes flight time, which is not to bad i dont think.

I would like a gas plane though, just all the hastle of cranking the prop trying to get em started that puts me off, electrics seem to just go trouble free unless you screw up and use the wrong setup and it catches on flames.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-10-2012 12:50 PM  9 years ago
Spitfire1

rrElite Veteran

Perth Australia

MyPosts All Forum Topic
On another note, I have 3 electric scale retracts to install into my 90mm hawk, never realy though how I was going to wire them up.

Do I need to buy a servo extension with 3 into 1 or do I have to use 3 seperate channels?, Im still on DX7 so Im limited to 7 channels.

y harness the ailerons and flaps, thats 2. 1 for frudder, 1 for nose wheel that 4, one for throttle thats 5, elevator would like to use 2 ports but then Im up to 7, also my ubec has two power inputs although Im told I can use a y harness to use one of the power inputs into one of the servo ports (apparently it works OK).

I think I can do it with a 7 channel but only just, might have to buy a servo reverser and use a y harness for the two elevator servos, but would prefer to use seperate ports for each elevator if possible.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-10-2012 01:07 PM  9 years ago
fla heli boy

rrElite Veteran

cape coral, florida

MyPosts All Forum Topic
and use the wrong setup and it catches on flames.

Which seems to happen to you a lot.
I've seen over the last few years, you go through a lot of planks having trouble with your gear. That's what turns me off about electrics. I grew up on nitro, so going gas will be a walk in the park.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-10-2012 01:43 PM  9 years ago
Spitfire1

rrElite Veteran

Perth Australia

MyPosts All Forum Topic
Yep they call me inferno, these days Im trying to keep within the limits of what the electrics are capable of, but Ive had a lot of planes but only ever seem to have 1 or 2 at any one time.

I have found a couple of high amp high setups that seem to be reliable, my smaller 50 size aerobatics were 100 amps 3000+ watts and never had any issues, this hacker I have on my funjet is extreme on 4 cells and seems to be going strong after many flights, Im told this 4s hacker setup I have makes the funjet go 250kph, it is very fast thats all I know, fastest thing Ive ever seen yet.

I started of nitro with helis, I think its just what your used to, I can see the apeal of gas in a plane, but I would not bother with nitro ever again.

As fun as those high amp 50 size planes were to fly, once again I was limited to 4 - 5 minutes, thats the drawback with high performance electrics, 4 minute flight times.

Also finding with the bigger electric stuff its not as easy, I change something just assuming my amps will be less through past experience and it dont work out how I expect it should, starting to wonder if less cells with larger props may be the way to go. Istead of say 10 cells with an 18 inch prop, maybe 6 cells with a 22 inch, might work better for aerobatic, Im seeing a patern emerging where people are getting better performance useing less cells than what seems to be accepted, 8 cells in 30cc size rather than 10 or 12.

Same with 90mm edf`s, usuallly its 8 - 10 - 12 cells, but I see people now are starting to use 6 cell lipos and still get good performance, 6 cell 5000`s.

Ive opted for an 8s setup in this 90mm edf Im building(2*5000 4s lipos in series), Im useing the RC lander 90mm 1400kv fan rather than a wemotec, I think the jet should come in at about 2.8kg and the lander fan on 8s should put out about 3.3kg`s from memory, hopefully that will be enough fingers crossed.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-12-2012 12:27 AM  9 years ago
norsman

rrKey Veteran

paradise PA

MyPosts All Forum Topic
Check this out

Watch at YouTube

SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-13-2012 12:19 PM  9 years ago
Spitfire1

rrElite Veteran

Perth Australia

MyPosts All Forum Topic
My 250kph funjet went in hard, changed receiver and somehow fogot to check mixing ail was good but ele was reversed, went in nose first.

Need to think of a project for this hacker motor on 4cell lipos, its one helll of a fast setup, and amazeingly seems to be very reliable, I like the look of the carbonz scimitar, its a wing with a rear vector propeller and optional retracts, or even a stryker.

Just not sure those airframes are up to this kind of high powered setup, the funjet is a very strong elepor foam that is very strong albiet a bit on the heavy side, theres utube vids of people even putting micro turbines on them Im pretty sure the speed out of this hacker and 4cell setup is actually 250mph not 250kph as I previous stated, and it seems bulletproof so far, my 2200 mah 50 - 70c nanotech lipos and motor dont even get warm after 4 minutes of 3/4 to 100% throttle, the only thing I dont like is hand launch which the carbonz scimitar would be good as it has landing gear, only thing its quite expensive for a foamie wing (roughly $400)

My 90mm cmppro composite bae hawk is near completion, I have the scale electric retracts and have also ordered a 90mm anodized metal vector system, im just duct tapeing the thrust tubes to the fan houseing incase the RC lander fan is not up to the job, then I can easily swap it out with a wemotec fan and motor, all i need to find is a three way connector to connect all three retracts into one RX port.

Im starting to get back my confidence back a bit now with my 30cc sbach, the 10s setup is working well and giveing me about 7 - 8 minutes, but I wish I had gone 8 - 9cells, I think 8 or 9 would have been a much better setup for this size plane.

I will try and post some pictures of my 90mm jet for the budget price of the airframe I think its as good quality as an $800 airframe, looks really nice, I think all up the jet has cost me less than $1500 which is very cheap for such a nice looking jet, Im sure if you bought cheaper electrics you could have a very nice 90mm jet for around $1000 dollar mark, and they dont look cheap at all, I think its one of the nicest looking airframes Ive seen yet whith a very nice pre painted fuse with lots of detail, as good as Jet Teng or Sapac in my opinion, also theres no "modding" everything fits together well, even the retracts bolt right on, surpriseingly easy build with no dramas, all the servos go straight in easily, and the instructions are not to bad. Its taken me 2 weekends to get it nearly to the stage of flying, which is not bad for a composite jet, less time than an aerobatic balsa plane.

These are the photos from the hobby king website, you can see the detail is good, the pilots are too big and heavy so Ive left them out, I may paint the inside of the canopy black, I think black canopies look better but then I may loose the detail on the clear canopy.

I think it will look good with the metal thrust vector nozzle on the back.

SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-13-2012 01:27 PM  9 years ago
fla heli boy

rrElite Veteran

cape coral, florida

MyPosts All Forum Topic
be careful about painting that canopy black. I did that on a pair of Ultimates I built and you have to be very,VERY aware of keeping it covered at all times. It will warp like nobody's business if left out in the sun for very long at all.
PS - I like the pilots...
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
04-14-2012 05:08 AM  9 years ago
Spitfire1

rrElite Veteran

Perth Australia

MyPosts All Forum Topic
Ive decided to leave the canopy clear so you can see the detail lines engraved in them, but the pilots are two big and heavy and I had to hack of the arms to make them fit anyway which made them not look to good.

Still not sure about that rc lander thrust vector nozzle, it will be alot of weight plonked at the rear end of the jet, but Ive ordered one anyway it was only $20 from HK, more for apearance than anything else, I think it will look good, the rc lander ducted fan unit is made of metal which also adds extra weight to the rear, Ive only used them in foam jets and they sound very nice, so Im hopeing it sounds good in the composite jet also.

A flying bud painted his habu 32 clear canopy black and it realy changed the whole appearance of the jet, thats what gave me the idea of doing it, on the habu 32 the black canopy looks very nice.

I managed to get hold of the scale electric retracts made for the jet from a place in America that also sells the CMPpro jets, so Im hopeing to install them today, I think its called scaleflying.com or scaleflyers.com, I think its actually an rc heli website that also sells a few jets also.
SHARE  PM  EMAIL  GALLERY  Attn:RR  Quote
WATCH
 113 pages [ <<    <     109     ( 110 )     111     NEXT    >> ] 110185 views Post Reply
Home✈️Aircraft🛩️Fixed-WingFixed-Wing Main Discussion › The official plank thread.
Print TOPIC

 38  Topic Subscribe

Tuesday, July 27 - 9:33 pm - Copyright © 2000-2021 RunRyder   EMAILEnable Cookies

Login Here
 New Subscriptions 
 Buddies Online