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 well im having ago at making a twin engine lawn dart

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Keith
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Wed Jul 20, 2011 7:56 am

you going for differential thrust ? you could lose the rudder setup\servo if you do
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phil.D
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Wed Jul 20, 2011 7:57 am

You could fit the esc behind the motors in the naceles?
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madjeff
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Wed Jul 20, 2011 8:01 am

no differential and i forgot to make the rudder work Laughing lol! don't no what it does lol
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Wed Jul 27, 2011 10:07 am

well its painted up and its not quite gone as id hoped. Rolling Eyes the green i sprayed it in looked good on the tin,but on the plane looks wrong. not the right shade. oh well it will grow on me.
will have some pics soon. Smile
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Keith
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Thu Jul 28, 2011 4:16 am

I have plenty of green left over m8 if you want to change it? its a 5 minute job for the airbrush.
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madjeff
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Thu Jul 28, 2011 4:53 am

thanks Keith if it gets on my t@ts to much i may take you up on the offer.
any idea were i can get some 6x5 props that are contra rotating. brc have none nore hk
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Thu Jul 28, 2011 5:18 am

I can get you close if you try here............http://www.micronradiocontrol.co.uk/prop-gws.html#zgws_dd_pusher

I've used them a few times for my quad and tri props there pretty good and fast delivery
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madjeff
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Thu Jul 28, 2011 8:43 am

thanks keith. will ring them in the morning.
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Thu Jul 28, 2011 10:59 pm

well not sure it will be ready for the week end but power system is on its way from brc.
went with 2x20 amp esc and 2 2812 1500kv. iv proped it down to 5.5 as 6x5 was going to be well over 200 watts thats crazy on a plane that ways about 400 grams approx
been trying to think as what the colour looks like and id say its British racing green so looks wrong.
the pictures look more blue but its very green





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Keith
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Fri Jul 29, 2011 4:16 am

Jeez jeff a couple of blue wonder 1300's and 10amp esc'c will fly my cargo plane at 34 oz's yours will be nuts on that setup m8, I want to see the maiden its going to go like a rocket.
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Fri Jul 29, 2011 5:38 am

lol that what im afraid of. and at the min its not contra rotating ether. if it flys bet it tork rolls bad. will look in to some props next week.
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Fri Jul 29, 2011 6:13 am

I'm running two standard motors with standard props
1550kv with possible 8x4 or 7x5 props either should be fine I dont see to many issues with torque roll on yours unless you apply to much throttle on take off.
Its going to be a hairy maiden for us both m8 good luck on yours. Wink


Last edited by Keith on Fri Jul 29, 2011 6:43 am; edited 1 time in total
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madjeff
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Fri Jul 29, 2011 6:30 am

same to you, least we are starting with ground take offs don't think i want to chuck either of them for a maiden. yours looks more promising than mine.
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Wed Aug 03, 2011 4:42 am

well just a update this is the build upto now. Smile






Last edited by madjeff on Wed Aug 03, 2011 4:49 am; edited 1 time in total
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Wed Aug 03, 2011 4:47 am

Looking good jeff I still have the maiden to do on mine, I'll get it in the air soon enough, looking outside now its calm and i'm so tempted. Twisted Evil
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Wed Aug 03, 2011 4:57 am

i am getting a little worried, i think its going to glide like a brick. total flying weight will be approx 450g. the plan was for a plane with 48in wingspan with the flying weight of 460g. Shocked my wingspan is 38in
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Fri Aug 05, 2011 7:08 pm

well things are moving along well. had all the servos and motors running.sounds nice.





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PostSubject: Re: well im having ago at making a twin engine lawn dart   Fri Aug 05, 2011 7:45 pm

Looking good, needs a cockpit painting on

Nice big ailerons it should Roll well Cool
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Fri Aug 05, 2011 8:15 pm

Invasion stripes?.
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Fri Aug 05, 2011 8:17 pm

thanks Paul. yes i need to do the cockpit and the d-d invasion stripes
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Tue Aug 09, 2011 10:11 pm

well here it is just a lick of white paint and its finishd. Smile
if wind drops this afternoon then its getting its maiden.
has ended up being a bit heavy so power of glide is going to be almost nill lol.








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PostSubject: Re: well im having ago at making a twin engine lawn dart   Thu Aug 11, 2011 5:16 am

well me and Pete made use of the weather yesterday afternoon. and my build got its maiden twice lol. first one i erm well....put it in a tree Rolling Eyes i was just going to see if the thing could take of from the ground and it left the ground and was all over the place. it was so tail heavy i was fighting to get to the trims and it went into the tree.lol. just a bit of foam missing from leading edge. so taped up and Pete did its proper maiden. needed a lot of trim to get it flying ok but as it was over weight it needed speed to keep it flying. so its being shelved and im on with the mk2 full size plan already. Very Happy
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Last edited by madjeff on Thu Aug 11, 2011 6:47 pm; edited 2 times in total
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Ade
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Thu Aug 11, 2011 5:21 am

How the hell are you going to fit 18 fat USA para's in that skinny fuz? Razz
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Thu Aug 11, 2011 5:27 am

Ade wrote:
How the hell are you going to fit 18 fat USA para's in that skinny fuz? Razz

think the fat para's were all ready in it lol. the glide was like a brick being thrown at the ground.
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PostSubject: Re: well im having ago at making a twin engine lawn dart   Thu Aug 11, 2011 9:53 am

Someone threw a frisby at it Mad
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