Welcome, Guest
Please Login or Register.    Lost Password?
Go to bottomPage: 12
TOPIC: Multiplex Dogfighter
#40117
Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
This seems to be a very cool little model. I had a Twinjet (until quite recently) and they were a great little delta for their time. Utterly outclassed these days by more modern technology but at the time a compelling performa and a lot of fun to fly.

So that's biased me towards Multiplex now and 7 years later I'm thinking of buying another Multiplex model - the dogfighter...



Apart from the cheesy bulldog pics, this little plane looks pretty impressive.

Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40118
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
The dogfighter comes with two seperate decal sheets. One as a fighter, and one as a racer - very cool!

Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40119
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16


Initially the colour of the pre-release model foam was that cammo grey/green tinge that multiplex set in to the EPO. Thankfully they've bleached it now and the production kit is a clean looking white.

Specs from Multiplex USA

Our fast and agile racer, the DogFighter, brings the old fashioned art of aerial combat to your local flying field. With crisp handling and precise response, this sporty flyer will tear through the skies with aerobatic mastery. Inspired by the classic warbirds of WWII, our compact speed demon was designed with the intermediate and sport flier in mind. Whether you are making striking runs at the club field or engaging in ferocious aerial combat, seize air superiority with the Multiplex DogFighter!
Features

Low Minimum Airspeed
Crisp Handling and Accurate Response for Precise Aerobatics
Detachable Wing For Easy Transport
Durable, Elapor® Foam Construction
Includes Two Decal Sheets "Racer" and "Fighter"

Model Specifications

Wingspan: 35 in.
Wing Area: 296 sq. in.
Wing Loading: 14.6 oz/sq. ft.
Fuselage Length: 32 in.
Weight (English): 30 oz.
Target User: Intermediate/Advanced

Recommended Equipment

Motor: 350 to 500-watt Outrunner
Speed Control: 50-70 amp
Propeller: 9x6
Battery: 3S 2500mAh LiPo
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40120
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
Here's some different dogfighter colour schemes from around the web:













Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Last Edit: 2012/04/26 23:36 By Quandry.
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40121
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
Of course you are free to design your own, however Multiplex have two different power sets designed for use in the dog fighter - the 'tuning' set, and the 'ultra tuning' set.

Both have a prop, speed controller, brushless motor, adaptor, and roughly look like this:
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40122
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
Well I pulled the trigger on a Multiplex Dogfighter today. Put my order in with www.electricwingman.com/ who have an excellent web shop! possibly one of the best I have ever seen. I hope the model is as good!

Should be able to grab a few unboxing pics mid next week.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40124
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
Some details on the power sets:

Multiplex DogFighter Tuning Power Set
"Tuning" power set for the Multiplex DogFighter, designed for great vertical performance. Draws approximately 35A with the supplied 10×7 propeller and a 3s Li-Poly battery.

The box includes the following components: -

Himax C 3516-1130 brushless motor (333023)
MULTIcont BL-40 speed controller with built-in SBEC (72285)
APC 10"x7" Thin Electric Propeller (733115)
Prop-driver and spinner (332330)

The recommended battery is a 3-cell Li-Poly with a capacity of 2,200mAh

Multiplex DogFighter ULTRA Tuning Power Set
"Ultra" Power Set for the Multiplex DogFighter, for those of you who want completely uncompromising performance out of the DogFighter. This setup draws approximately 53A on a 3s/11.1V Li-Polymer battery.

The box includes the following parts for your RC DogFighter: -

1 x Himax C3516-1350 brushless motor (333024)
1 x MULTIcont BL-70 speed controller with SBEC (72287)
1 x APC 9"x6" Thin Electric Propeller (733117)
1 x Prop driver and spinner (332330)
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40156
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
This should be on delivery today
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40163
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
Just what I needed, the perfect thing for a rainy day.... A dogfighter kit to build!!


As you can see from the box it's well decorated and when you first check it out, inspires a feeling of fun and adventure (cheesy words I know, but actually I don't know how to describe that otherwise). On the full colour print, the plane cuts a fairly basic shape but instills enough curiosity to start looking further..



Unchain the dogs!
LOL this sounds quite comedic, makes me start hearing 'who let the dogs out - who who who who'


Exploit the DogFighter's precise control response for classic aerobatics. Experience the feeling of raw power typical of a warbird or air-racer, while enjoying the model's semi-scale appearance and its very broad speed range. The DogFighter's superb low-seed handling makes accurate spot-landings easy for the experienced pilot.

Let your Dogfighter carve up the sky with classic aerobatic manoeuvres, or scorch the air with high-speed low passes! Experience the adrenalin rush, and enjoy the model's deceptively realistic appearance before floating in for a gentle landing.



* Low minimum speed - Let's see!
* Spectacular maximum speed - Really??
* Ultra-precise handling - this is a foamy we're talking about right?
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40164
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
For those who're interested in if they can fit the box in their car, I would call this a 'small golf bag' size. When it was shipped to me it came in a bigger box, so I had to unbox the box to get it in my car. Had I picked it up at a store I would have been ok.

Length 92cm
Width 15cm
Height 29cm





Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40165
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
In order that I could put together a fully flying kit I also ordered 3 Hitec HS65's and two servo extension leads. There is an option to install a rudder on the model but I'm going to see how it flies without one in the first case - it can always be added later.


As I mentioned before, I got a power set with the kit and I opted to go for the Multiplex Ultra tuning kit. When I saw two boxes I thought maybe they double shipped? but actually one box was the optional folding propellor I also bought.


Inside the tuning set box is the Brushless outrunner, 70amp speed controller, propellor and accessories.


Motor has a solid weight to it, and turns smoothly with a strong magnetic feel
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40166
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
Nice 6S ESC - not a lot of heat sink involved though so probably best not to over cook it. 4S could be a possibility but I think it's beyond the means of the motor honestly.


The folding prop set which looks functional yet unimpressive for the price.



Moving on to the main kit, the box is sparse on packaging/internal support. But I didn't find any rogue foam in there it has to be said.


The decal sheets are great! It's very generous of Multiplex to include two designs in every box, and not expect the consumer to choose at point of sale. I also think it's a great marketing ploy going with two different designs as it implies that you can have fun flying two of these planes with a friend. Lets see how that works out at my local flying field.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40167
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
Mutliplex manuals are normally good quality and the thickness confirms the Dogfighter is no exception in this regard. The dogfighter is shipped in a few pieces that are bubble bagged and straightforward.


Removing the bubble and now we can see that the shape and detail of the foam airframe is actually quite impressive. A lot more so than the slightly tubby and simplistic twin jet of yesteryear.




Maybe it's the shape of the cockpit, or the black spinner and white body, or just the idea of a flying dog, but for some reason this kit reminds me of - SNOOPY!
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40168
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
I really like the exhaust moldings, they conjur up visions of a Merlin howling through the air.


Despite the cartoon appeal though, there's some deep thinking embued in these castings, as with a gentle flick of the wrist the seemingly one piece fues splits apart cleverly in to three interlocking pieces.


Next I moved on to the wing, which has quite a flat bottom and curved top. More thoughts on this later.


Also there are cable routes for the servos and cutouts in the wing ready to drop in the Hitec servos. Other details like wheel wells have been etched in which is a nice touch. Allowing the more artistic to take things further no doubt.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40169
Re: Multiplex Dogfighter 2 Years, 6 Months ago Karma: 16
The tail plane (although not pictured) is of similar design. The accessories and build parts are all in one bag so finding them is not a problem, still I have to check that everything is there, but being multiplex that seems more likely than not.






So that concludes my unboxing, at this point I am more impressed with the kit than when I started so that's a good thing, and I am almost hoping that it's raining on the weekend so I can get stuck in to the build!!
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40171
Re: Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
great dogfighter video..
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40172
Re: Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
Good build video here too!!

Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40197
Re: Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
Well I've been doing a little building on the dogfighter. Have not really had a chance to document it quite as well as other kits I've built due to other pressing concerns. What I can say though is that Multiplex sure didn't let me down. When you put the components together it looks really great.

I'm part way through the build now and I think I have some photos at home so I will pull those off my camera and update here. I'll also try and get some of the rest of the build.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40220
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
Ok I now have a completed Dogfighter just awaiting some decent flying weather!!

I did take a rake of photos in the second half of the build, however my camera is overly confused by bright white surfaces and for the most part nearly all of the photos were too fuzzy to use so I had to delete them

However I do have a few pics and some commentary....

One thing I found quite cool about this kit is that the fuse comes in two veritcal sections. Quite interesting and it allows you to check what space you have in the model prior to full assembly. In this picture you can see I installed a rudder servo as well as an elevator servo in the tail.


In this case I put in an Align DS410 that was left over from a crash, I would suggest though if you're going with a tail servo put the lightest servo you can find in there as the kit lands up pretty tail heavy with two servos in the back.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40221
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
The assembly itself is quite straight forward. I used Medium strength ZAP which allows enough time to reposition without drying solid, and also can be used as a gap filler. It does pay though to leave it dry fully for an hour or more before putting a lot of pressure on the joins.

Another little trick is that because the motor wires come out of the front of the motor and the ESC sits behind, you have to be a little careful that the wires don't get caught up in the motor as the whole rear can turns. To protect against this I glued some plastic rod in to the fueslage inner to keep the wires well down and under the motor.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40222
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
After gluing in the tail and accessories I was then able to cyano the two fues halves together and it really starts looking like a cool plane then! I couldn't help jumping ahead to some stickers and colouring in the canopy glass with a black marker


Installation of the motor etc is quite straight forward and the basic design includes the ability to adjust horizontal and vertical thrust. Having installed the servos and cables in the wing I took the chance to include the stickers on the main wing also.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40223
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
I did notice however that the underside was a little plain looking


So in order to improve in flight orientation I decided to put some stickers on, there was a couple of the red/black stickers left but actually at this point I decided to use the warplane stickers which now gives me the best of both worlds. I used exhaust trails as a wink to invasion stripes. Ok it's now bastardised the 'type' of plane even more, however this is just a fun sports flier, even with perfect stickers it's never going to be a scale machine.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40224
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
Finally after checking that the servo settings are good I glued on the servo covers. I've had a little bit of fun with the zap letting go here and there but that would be more to do with poor application than an actual problem. A bit more glue and bobs your uncle it holds firm. The HIMAX motor gives a very 'zingy' whizz whizz when it's fired up and at half throttle the dogfighter is trying to pull straight up - should be interesting in the air!

So I'm keen to move to the next stage and get this bird in the air - just need some good weather now...
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40258
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
I had just finished building my dog, proudly showing it to my flying buddy (it was looking great), when he proclaims 'hey the wing is warped'.

It's the weirdest thing. A cursory glance and it looks fine:


Then look straight down the nose while it's lying flat and it looks like the tail is set wrong


I checked the tail and the whole section is off not just the horizontal stabiliser.


I did a close inspection and found that the wing is seated perfectly on the body, I double checked all of the joins, seems, mounts etc etc, everything is perfect.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40259
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
my first plane had a warped wing after gluing the spars on...the manual says be careful when doing this operation..keep the wing supported and flat. I ended up shimming one side of the wing saddle and got it close. I have retired that plane from service due to too many THUDs...you know that awful sound. my second plane was better. I flew it today three times...didn't lose a prop..yea..its very strong now that I've reinforced it with carbon rods on both sides of the nose and under each wing saddle....oh did I mention I had cracked it half a couple of weeks ago..never mind..its all good

ah ok, maybe that is the issue I just let my wing dry sitting on a flat surface. hmm, if I ever have to rekit this bird due to negative altitude I will be checking the fitment very closely prior to gluing in those plastic rods. Despite what the photos look like, the warp is definately in the wing not any part of the tail.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40260
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
I fitted some plastic spacers to the wing. Found them at work and they just worked out a handy size


Looking much straighter now!


Maidened the dog this evening. Bit tricky to launch but got two decent flights in thanks to my son launching. I get the vibration through the airframe also at a certain throttle range to me it sounds like resonance as when you give a bit more throttle it clears.

Dogfighters fun! really cooks along on the ultra power set!
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40273
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
Dogfighter down

Unfortunately Dogfighter MK1 went in yesterday. It was flying great, but was lost at low altitude and high speed. The strange thing is that the plane seemed to break up when level. I can't really explain why or how, it was over the long grass. At first it seemed a classic case of not pulling up soon enough. But when checking the wreckage the prop and (foam) spinner are unmarked.

I will get some photos for further post mortem, however what is strange is that one of the stickers from the side of the plane is now located on the tail and around the elevator :eek:

I really like flying the dogfighter and as I still have the motor/ESC,servos etc then I'm planning on sourcing another foam kit to put it all in.
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Last Edit: 2012/05/21 09:37 By Quandry.
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40278
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
Dogfighter crash report

I gathered up enough courage to dig through the wreckage and try to piece together what had happened. The crash was on a fast low pass and I was perfectly happy to presume that I just flew it in to the ground. The crash happened over long grass and there was some cartwheeling involved so I couldn't really see what happened that well.

There was a solid wind blowing at the field but irrespective of any mechanical defect or outside influence, I was flying too fast, too low. If I wasn't doing that then I would still have a dogfighter to fly today.... (Like every episode of Scooby Doo there's a lesson there)
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40279
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
Assembling the bits to see what is what


The rear servos are still in good shape and respond well under power (phew - I am rubbish at fixing servos). The tail upright was showing signs of tearing and also solid dried glue with no foam in it. Never a good sign as it shows that it didn't cure correctly when setting.


This is strange, the smoke trail sticker was not on the top of the wing before the crash???


This side of the fues had the smoke trail on it. It's after peeling off in the air and wrapping itself around the elevator!!
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
#40280
Re:Multiplex Dogfighter 2 Years, 5 Months ago Karma: 16
Moving to the front of the plane and we can see that the foam (yes foam) spinner is unmarked. Also the prop in good shape and also the nosecone is good apart from being seperated from the fues




Left airleron gone and the wing bunched up at the end and split towards the back. Maybe this is a clue?


Front of the wing is grand, as is the wing back fues
Quandry
Administrator
Posts: 1271
graph
User Offline Click here to see the profile of this user
Location: Ireland
Comments? Suggestions? Register above to have your say!
I love a good build thread!
Click me to see how to post pics
 
Go to topPage: 12