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-   -   Cheapie - HK's HUMMER ... (https://www.wattflyer.com/forums/showthread.php?t=75454)

solentlife 03-07-2015 09:23 PM

Cheapie - HK's HUMMER ...
 
Box arrived :

http://i6.photobucket.com/albums/y24...psdyonav8n.jpg

Contents :

http://i6.photobucket.com/albums/y24...psdxlzmu7p.jpg

Didn't take much to put together ....

http://i6.photobucket.com/albums/y24...ps4iu09bxn.jpg

But three points to note :

Elevator foam centre has to be cut to clear rudder ... nothing in manual about that.

CF rods are NOT the lengths as stated in manual - they are ALL long ! So you have plenty spare after !!

No mention of CF to be inserted into slot in stabiliser .. but slot is there ... I used one of the offcuts from the fuselage stiffeners.

Emax CF2822 motor, 35A ESC, 1250 Rhino 3S, FrSky 4ch Rx, TGY9 servos (4), 10x5SF prop. AUW with battery ready to fly 535gr.

Nigel

solentlife 03-09-2015 07:08 PM

Maiden in strong blustery winds :



Nigel

pizzano 03-09-2015 08:37 PM

Nigel.....

I like that profile.....I've never had one (profile) in my hanger. Thought of the Hummer when HK offered it....and your experience with it sold me......

But, a couple of days ago I put a plane and parts list together for about $65.00... not bad.

4 - 9g servos
1- Turnigy 2213/1050k brushless
1- 20 amp ESC

No additional linkage/mounting parts, I've got stuff.
No batteries, I've got plenty 1000Mah to 1300mAh 3s.
No props, I've got plenty 10x47 to 10x6 GWS & APC.

Was coming out of the U.S. S/W warehouse.........the shipping and tax came to $52.00.....standard USPS.

Just could not bring myself to spend nearly $120.00 on a $27.00 ARF......guess I could just purchase the Hummer alone.....and pay $50.00.........lol

I'm still looking around for a similar size and EPP like the Hummer.........some place here in the southwest U.S.............where shipping and tax would be less than half the cost of the aircraft and parts....!.......but I really like yours and will pick your brain when I get around to purchasing a EPP profile.

dahawk 03-09-2015 09:10 PM

Looks great Nigel !

solentlife 03-09-2015 09:48 PM

Thats terrible P .... here's my order and costs :

Hummer EPP 3D Plane 1000mm (KIT) (EU Warehouse) 1 US$34.53 IN STOCK
10X6 Propellers (5Pcs/Bag) (EU warehouse) 1 US$2.62 IN STOCK
APC style propeller 10x5-E (EU Warehouse) 5 US$0.89 IN STOCK

Shipment Registered (Tracking) Parcel - Netherlands to Latvia US$18.45
Taxes US$0.00
Total US$55.86

I'm really pleased with it .... I should have bought one earlier .... but never liked profiles. But since getting the 3D fuel and electric larger jobs - needed a good hack-model to learn on.

Nigel

garyp1029 03-09-2015 10:59 PM

Pizzano, try Value Hobby in Addison, Illinois. They have the Hummer. Their shipping rates are also very reasonable. Gary

pizzano 03-09-2015 11:23 PM


Originally Posted by garyp1029 (Post 970055)
Pizzano, try Value Hobby in Addison, Illinois. They have the Hummer. Their shipping rates are also very reasonable. Gary

Thank Gary.......
I shopped around for the Red Eagle Hummer.....same plane as Nigels HK model.

It's either out of stock or discontinued at every reputable U.S. e-commerce outlet that carries HK (re-labeled) EPP models........:(

There are literally hundreds of EPP 3D models between the 700mm and 800mm......very few at the 1000mm size and $30.00 ARF..........kind of like Nigel, I'm looking into a nice 42"ws Edge.....wanted get my toes wet with a sponge first.....I fly some 3D with my bipes, but it will be a different world with a low wing that has the ability to prop hang, roll and turn on a dime.

JetPlaneFlyer 03-09-2015 11:31 PM

Thanks for the review Nigel. The Hummer looks like a great value 3D trainer and general fun aerobatic model.

solentlife 03-09-2015 11:55 PM

The HK Hummer is actually from Red Eagle Models - so maybe possible to source other than HK.

Nigel

dahawk 03-10-2015 12:53 AM

Yep Value sells the Hummer among others. But they are out of stock. Looks like a nice plane to bang around with for a while ��
and it won't break the bank!

solentlife 03-10-2015 10:47 AM

P - what about the Techone 3D profiles?

Supposed to be best out there.

Nigel

pizzano 03-10-2015 05:20 PM

Nigel.....

Yes, the Techone profiles are nice. A couple of my buddies have owned the 850-900mm styles. I've considered the Yak54 1100mm version......it's the only one of three they offer over 900mm. But I was really looking for something more in-line with the Edge540 wing style......the Yak is close.

Nitroplanes is the probably the least expensive.....$50.00 plus shipping and tax, it's around $75.00.......without additional hardware. Trying to keep the whole package under a $90.00 budget with a decent motor and ESC......since I'm also considering (after learning on the spongy) a $300.00 ARF Edge 450......will need goodies for it as well.

solentlife 03-12-2015 02:32 AM

I have to say that the two profiles I have ... Zlin and Hummer are both same 1000m size and its nice size. Not too big for 3s lipo, but big enough for 'presence' in the air.

Nigel

solentlife 03-22-2015 04:58 PM

The Hummer is definitely winning on the learning front ....



Nigel

GunnyJeeves 03-23-2015 02:42 PM

1 Attachment(s)
I recently got my daughter a Twisted Hobbys Extra 300.

It is the foamy profile plane that is 48" wingspan. It flies awesome of course, but the price was $150 for the kit.

They actually offer a 39" edge 540 in both red and blue.

Another option is from a Chinese company called Winner's Model. (If you recognize those, you are correct. They're the 3DHS ones the best I can tell.)

They actually go up to 55" and I think the 48" ones are about $50 plus some shipping.

http://winnersmodel.weebly.com/ MFG Site...

Hope this helps.

solentlife 03-23-2015 03:24 PM

I'm always amazed what price people will pay for a bit of foam ! I appreciate that design and creation of final parts comes into it ... but even so ... once the first is knocked up - the follow-ups are pushed out rapidly ...

EPP foam ... local DIY shop - you can buy blocks of it for peanuts - especially if you sweet-talk the Floor Manager to let you have the damaged stock. Often it just has a corner missing or something.

I'm so chuffed with this Hummer - I'm seriously looking at a decent Katana in balsa ...

Nigel

solentlife 03-23-2015 04:45 PM

So now I've swapped out the 2822 Emax 1100kv for a Turnigy 2830 1000kv ... this lets me fit the 11x5.5 prop instead of the 10x6.

Vertical thrust is 1:1 at about 65% throttle now instead of the 75-80% previously.

Looking forward to our storm weather to pass now !

The 2822 has gone back to my Angry Bird for further trials !

Nigel

pizzano 03-23-2015 05:41 PM


Originally Posted by solentlife (Post 971071)
I'm always amazed what price people will pay for a bit of foam ! I appreciate that design and creation of final parts comes into it ... but even so ... once the first is knocked up - the follow-ups are pushed out rapidly ...

EPP foam ... local DIY shop - you can buy blocks of it for peanuts - especially if you sweet-talk the Floor Manager to let you have the damaged stock. Often it just has a corner missing or something.

I'm so chuffed with this Hummer - I'm seriously looking at a decent Katana in balsa ...

Nigel

Exactly why I'm still shopping..........Can't justify spending more for the foam and shipping than what I could for the additional "really" important stuff..........;)

GunnyJeeves 03-24-2015 04:02 AM

Just saw the 9XR radio there. How is that thing doing for ya?

Just so you know, our 5 of em are doing great! In two years we had one OrangeRX module go bad, but that's it.

hayofstacks 03-24-2015 04:56 AM

I got all excited at the title thinking it was a model of the ultra light my great uncle designed. http://en.m.wikipedia.org/wiki/Hill_Hummer

solentlife 03-24-2015 08:28 AM


Originally Posted by GunnyJeeves (Post 971137)
Just saw the 9XR radio there. How is that thing doing for ya?

Just so you know, our 5 of em are doing great! In two years we had one OrangeRX module go bad, but that's it.

I prefer the 9X to be honest, because the trim switches can be found by feel. The 9XR trim switches being near flush with the case makes difficult to find by feel. I don't like the handle angled forward, the normal for most radios is angled backward and gives better when laid on table / ground. etc.
But overall - yes, very happy with it. I use exclusively FrSky gear in it for general flying and a FlySky module in my spare to fly my backup 450 heli.

Something that most radios have lost today, is real tension on sticks. The max you can get on them today with stock springs is too weak for me. So my stick movements tend to wander a bit. I would like longer sticks with more tension. But that's not a fault of the 9X - that's general radios now.

The 9X is of course no longer available, HK concentrating on the 9XR Pro. Because I have the gear to plug in - the Pro is attractive if I need new radio, but if I didn't already have the modules etc. I think I would go for Taranis.

Anyway - my models fly very nicely on the 9XR as they did on my 9X.

Nigel

GunnyJeeves 03-24-2015 02:50 PM

You'll LOVE this then... Having 5 since they all look alike, we got the colored Futaba sticks. They fit right on.

So you have like $2-5 options for changing the sticks. Maybe not tension, but the sticks.

My radio is the Taranis. I like it, but the real trick is to find the right version of software so I can give planes and helis to my kids... (IE: My plane in the Taranis, later becomes my daughter's plane... so I copy it literally from Taranis to computer to her 9XR.)

I like the 9XR as well as my Taranis though. It does have a sturdier and more original 9X feel to it. Seems little more precise with the gimbals.

GunnyJeeves 03-24-2015 03:14 PM

Oh yeah... one more thing.

Having flown 3D profiles a lot, (some scratchbuilt... some HK Kits... and more recently some Twisted Hobbys and expensive options...) I can tell you what I see as the difference.

It is one simple quality. Coupling. There is virtually no coupling in the Twisted Hobbys plane. This means that if you are going full speed, and hit full right rudder, you either turn right (low rates) or "spin out" like a car that hit grease in a turn. With no coupling you can sit there and do doughnuts until you want to come down. If you fly level and hit full right aileron, you roll (like a perfect football spiral.) and still fly level. Knife edge stays balanced, for the most part, even when you are "steering around" with the elevator. Fly the plane level, then flip it inverted and essentially be flying the same plane. Lastly if you do an elevator and then punch the throttle and back right off, you do a near perfect waterfall.

In my other profiles, there may be a twitch or two in a roll or hard rudder turn. You need to balance the knife edge with ailerons. Steering in Knife Edge is difficult. Waterfalls are wobbly and unstable. Inverted is usually fine but "handles different"

In my Home-Made ones... Forget Knife edge. Waterfall becomes a "rolling harrier flip". Just DONT do inverted... :blah:

I'm sure it is balance, and I am also sure that it is correctable by dialing in the corrections as mixes. End result will be that you can make any of those fly like a Twisted Hobbys through a radio mix to undo any coupling you have. (and you're supposed to do that anyway in setting up for 3D) The real difference in the end is what those mixes may be.

T.H> Extra final mix for ailerons to rudder for KE flight = +/- 2%
Normal models... > Final may be +/- 10% in each mix.
My "Eyeball" scratchbuilds... > Final probably would be +/- 20 maybe even 25%, but have to mix that in to DECREASE with throttle increase...

End result of all of those would be planes that fly basically exactly the same. (IE: Zero coupling at doing anything, at virtually any speed.)

Heck Nigel, I hope this helps you out. I was very curious about why these are so much better myself, so we got one, and that's why. That's the difference as best I can tell, and just know you can tune any plane to fly like that, but those expensive kits should not have coupling out of the box. If you have RF7 try the crack yak on it. Zero coupling, that is the target you want to hit in the air with a 3D setup.

solentlife 03-24-2015 05:03 PM

Just ha a brilliant 2 batterys worth quickie session front of my house ... well a short 2 min walk across road ...

Sun going down ... and wind drops away of course. We are a coastal town - so we have the early morning / early evening calms usually.

Magic ... the 2830 and 11x5.5 has really made her nice ...

Video to come.

Nigel

solentlife 03-25-2015 08:37 PM

Video for 24th with 2830 / 11x5.5 combo ..



Too much wind though.

And today 25th ... today was really silly wind but decided to give it a go.



Ended up stripping a servo gear and snapping the prop adaptor. Quick fixes ... ready to go again.

The model is actually far better and enjoyable to fly than I expected. As a sport aerobatic, its awesome. So even if you have no intention of 3D ... its good for stunts.


Nigel

solentlife 05-25-2015 03:53 PM

Having quite a bit of fun with this cheapo machine ... and here tested with 11 x 4.7SF prop ....



It was really blustery winds that usually I would stay at home unless flying my larger gear ... but this Hummer seems to just laugh at it !!

Nigel

tobydogs 08-14-2015 01:47 AM

Hello Nigel,

I just finished putting together the hummer tonight. a mistake I made was to use ca on the carbon fiber and hot glue gun the fasten the surfaces together.

If I read right from other forums, the cg should balance where the wing carbon fiber rods are. if this is right....my hummer is very tail heavy. I can scrape hot glue off. switch out the piano wire control rods on the tail for custom made carbon fiber,but I will still need a 1500mah 30c battery mounted all the way up front to balance this bird.

I'm using an Exceed alfa motor 28-30-920kv with a 10x4.7 slowflyer apc prop I took off a 48"ws hanger queen j3 cub. I also had a 40amp hobby wing in the parts drawer. I really wanted this to be light and use a 1000mah 30c battery since i have a bunch of those from the superfly delta I wasn't using.:( now it looks like i need a much heavier battery or add lead. will go for the larger battery first.

Are you still using the 1250mah batteries? thanks for any suggestions. stu

solentlife 08-14-2015 07:44 AM

Mine balances perfect with metal rids at back end ... but mine are quite thin ... about same as the PKJ used. They actually bend when full reflected so thinking to change for stiffer.

Yes - 1250 Rhino packs ... with back edge about where rear edge of U/C ply is. ESC is glued to sit lined up to LE of wing on other side. The battery ESC leads that connect behind the landing gear underneath.
RX is sitting about where trailing edge lines up ... with Orange 3axis stab on other side of model same place.

Servo's are all 9gr jobs. Two of course at back end.

Motor Turnigy 2830 .... prop 12*6SF at moment - but will change to APC 12*6E.

I can fly this with 1750 Rhinos when wind is up - gives more steady flight ... but the 1250 is best all rounder.

As to glue ? I used epoxy and hot-glue. As you know - I am not a CA fan.

Nigel

tobydogs 08-14-2015 12:52 PM

thanks my friend,
what do the metal rids mean:confused:and back end of what location?

I read the balance point on the wing is the carbon fiber rod stiffeners. This amazes me since it's so far back.

I also prefer hot glue on epp since it's so quick,strong,and flexible. i just wanted to use CA on all those long lengths of stiffener rods. medium CA right in the slots was fast and clean.

solentlife 08-14-2015 01:33 PM


Originally Posted by tobydogs (Post 979251)
thanks my friend,
what do the metal rids mean:confused:and back end of what location?

I read the balance point on the wing is the carbon fiber rod stiffeners. This amazes me since it's so far back.

I also prefer hot glue on epp since it's so quick,strong,and flexible. i just wanted to use CA on all those long lengths of stiffener rods. medium CA right in the slots was fast and clean.

Sorry that's my Android Tablet does that .......... it 'corrects spelling' to what IT thinks I need !

METAL RODS .... control rods. And back end ... tail mounted servos.

I saw the recc'd CoG and thought - well it would have to be pretty bad to fall behind that - so I rigged her up and flew as is. She's fine !!

But on launch - I have reduced throws to about 40% of full ... saves that heart stopping overcontrol as she leaves the hand ! Once in the air and steady - I flick her to full.

She's a cheap bit of fun.

Nigel

tobydogs 08-14-2015 10:28 PM

Nigel my friend,

you switched motors to a larger one,with any other mod's how much does she weigh now?

i had to add lead to the nose to get cg right using a light 1000mah 30c 3cell battery. she weigh in AUW 603grams:eek:

battery at 12.42volts, wot watt test is 182.9 watts,16.25 amps. wants to pull out of my hand and go vertical no problem. i guess she's going to be an aerobatic flyer but not a great 3d flyer.:D will know more saturday.

edit:switched to an 11x3.8 slowflyer pac. the wattsup meter show approximately the same reading but with better lift.

fhhuber 08-15-2015 12:48 AM


Sorry that's my Android Tablet does that .......... it 'corrects spelling' to what IT thinks I need !
I have come to the conclusion that auto-complete and auto-correct were written by perverts.

solentlife 08-15-2015 06:57 AM

Hi Stu ....AUW is 675gr.

I fly with a guy who has a Hummer with a 3240 motor up front !

Best prop ? I like the APC 11*5.5E .....

She will go vertical out of hand at lot less than wot.

I really like the Hummer but I hate EPP.

Nigel

flypaper 2 08-15-2015 11:40 AM

I didn't like the way the tail was built so made a new stab and rudder from Depron. No wood or carbon needed.
Just built it and will maiden it today.

Gord.

tobydogs 08-15-2015 01:30 PM

thanks for sharing that weight Nigel I was thinking I should remove the tail section to get down to 535g in your first posts...lol:D:Q[JK of coarse:roll eyes:]
I decided to install the landing gear to protect the prop. it's now a 11x3.8 and possibly to big if theres to much torque. now the hummer weighs in at 635g's and required lead up front to attain cg. i want a motor that use's a rubber "o"ring prop saver. this exceed motor doesn't .

I also need a new motor. the one I'm using is at least 8 years old and never used since it was installed on one of my first built kits hanging on the wall as art. it was made by Hobby Partz[nitro planes company] and really doesn't meet the needs for 3d. it's no longer made and is rated for 13 max amps short burst. I am pulling 17amps at WOT.

today is perfect for flying. taking to the field today is the edge 540t,extra 260,hummer, and for a hopeful flight or 2 on the speedshark.dang,i want my 100mph award:tc:. also the 2 250quads to fly later with the gang on the helie side of the field. should be a really long day. sadly the field is closed on sunday so the solar panels can be maintained and additional power lines run.:mad:

tobydogs 08-15-2015 01:33 PM

have a great maiden today Gord!!! i also am maidening today.

tobydogs 08-15-2015 10:21 PM

WOW! what a great day of flying.:D

only 2 disappointments though the hummer was underpowered except when flying full throttle. plus she needed to have more down thrust mounted in that weak motor. must replace it with a motor that can use my 1000mah batteries and also have power to fly this bird.

report on the speedshark is another thread:roll eyes:

540t,260extra,and both quads were the best of the day!!!!!

tobydogs 08-16-2015 02:48 AM

Just finished reading a long tread on another site and am going with the recommend motor Nigel. turnegy 28-36/8 1100kv. ordered it tonight from HK's USA east coast warehouse for $18 shipped. since it's local,it should be here in a few days and up and flying again for next weekend.

even though the power was terrible using a alfa exceed 400 28-30-920kv motor,she still flew nice and will be a blast with correct power. that exceed motor is around 6 years old and only rested for 13 amps burst?????? thats terrible.

will post a vid when I get her all sorted out. stu

solentlife 08-16-2015 04:20 PM

Was flying mine today in wind varying from 5 to 10m/s ..... the 11*5.5 prop just cuts through it and gives side range to work in.

I take it from the prop size you quote Stu ........ you still using SF props ! Honest - swap out for a stiffer proper prop ... and see the difference.

Nigel

tobydogs 08-20-2015 10:26 PM

Nigel my friend,
I just got the motor in the mail today...fast delivery when ordering from the US warehouse.

I installed it in 5 minutes and put the only 11inch prop i had in the drawer,a 11x5.5:Q. fired her up and all I can say is...WOOOHOOO!!!! she wants to tear out of hands with power from the Gforce 1000mah 30c battery. after a few trial throttle ups,I took the wattsup meter readings.

battery was at 12.27volts, WOT ran 25.24amps and a whopping 265 watts!! now if only the wind wasn't so strong. we have a storm front moving in for the weekend starting tonight into saturday. I also have the superfly delta ready to test fly after marjor repairs. the motor mounts keep melting and breaking. may have to swap it out for a metal angle bracket like we did for the parkjets. will post a vid of the hummer soon. thanks again for the sharing over at that other forum.:roll eyes:. the motors going to really make this hummer sing beautifully!


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