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Gnat 7.5" bipe control line conversion Empty Gnat 7.5" bipe control line conversion

Post  Dizzyman2011 on Wed Nov 21, 2012 2:58 pm

Hello all just found this forum wow I thought I was the only cox 049 obsessed man in the world how wrong I am Or should that be I'm now among friends hmm the latter I think anyway keep on topic I have just read the post about the gnat that hd built for Mitch now I have to be honest and say I'm more into control line than Rc so could I put an 049 bee on the bulkhead and just convert it to c/l has this been done I also have more questions about so much more but will leave that for another post
Cheers guys in advance
Phill Airplane
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Post  happydad on Wed Nov 21, 2012 3:54 pm

Dizzyman2011 wrote:Hello all just found this forum wow I thought I was the only cox 049 obsessed man in the world how wrong I am Or should that be I'm now among friends hmm the latter I think anyway keep on topic I have just read the post about the gnat that hd built for Mitch now I have to be honest and say I'm more into control line than Rc so could I put an 049 bee on the bulkhead and just convert it to c/l has this been done I also have more questions about so much more but will leave that for another post
Cheers guys in advance
Phill Airplane

i would guess you could use an .049 engine with few modifications to the plans.
1. the engine mounting plate would have to be enlarged because the Gnat was made for a cox .010 engine. and
2. the wing would have to be thickenen/reinforced for control line wires. the original wing was only 1/16inch thick balsa.
i have a full size paper plan and i made templates for each part if you are interested. happydad Small Cox Logo

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Post  RknRusty on Wed Nov 21, 2012 4:09 pm

Welcome to CEF, DMan.
You Dman... Ha! I made a funny. Rolling Eyes
Anyway, I hope you have a good time here.
Rusty

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Post  Dizzyman2011 on Thu Nov 22, 2012 1:18 am

Hey thanks hd although that would be great just realised I haven't put a location (or anything else) on my details I live in the uk think it would be a bit far to post Sad but thank you anyway have found the plans do they print out nicely straight out of the printer or do they need messing around with ( not too sharp with stuff like that) interesting about enlarging the bulkhead didn't realise the .10 were that much smaller a have only ever had 049's might use a s/s and 10cc external tank and will definitely have to strengthen / thicken the wing anything else to note about building this thanks for the quick reply
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Post  Dizzyman2011 on Thu Nov 22, 2012 1:25 am

Thanks for that Rusty very good ....
and oh so true lol on a serious note will have to post something somewhere to say hi to everyone here as u all seem nice blokes and very keen to help and share the knowledge
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Post  John Goddard on Thu Nov 22, 2012 2:51 am

Goodness me Dman you've got a keyboard
like the one I have perhaps its something
common to us lot over here seriously
though welcome on board there are far
worse places to while away a few hours
lol!
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Post  Dizzyman2011 on Thu Nov 22, 2012 3:27 am

Lol what's that lack of punctuation or a case of verbal squits Huh...
Both I think haha lol! just glad I found some like minded people after all this time great to be here
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Post  John Goddard on Thu Nov 22, 2012 5:12 am

Listen Phill when one spends most English lessons outside the Head of Years office rather than
in class receiving some teeeechin........
On top of that my School was really good, it was 'approved' by the Home Office....

It was named Borst Hall....

My parents used to get letters home "why was your Son in school today"..........?


Sorry guys that probably only scans over here.

I see you're in Vodafonetown, a tough place but someones gotta live there.
My Son's in Abingdon so I know the A34 quite well.
I bet there're loads of great flying fields out your way.
Cool
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Post  Dizzyman2011 on Thu Nov 22, 2012 6:52 am

Ha ha that's really funny Not quite in Vodafone town but quite near practically live on the a34 not loads of fields but one that fronts my house about 10 acres arable land though so no rog take offs Sad oh well we can't have it all spent most of my English lessons outside then bizarrely married an English teacher lol thought it was time for some private tutoring all jokes beside my grandma is terrible sport that should read gramma
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Post  ahrma_581 on Thu Nov 22, 2012 10:07 am

John Goddard wrote:... there are far
worse places to while away a few hours
lol!

A few hours, he sez. I guess it's that dry British wit we hear about.
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Post  happydad on Thu Nov 22, 2012 2:36 pm

Dizzyman2011 wrote:Hey thanks hd although that would be great just realised I haven't put a location (or anything else) on my details I live in the uk think it would be a bit far to post Sad but thank you anyway have found the plans do they print out nicely straight out of the printer or do they need messing around with ( not too sharp with stuff like that) interesting about enlarging the bulkhead didn't realise the .10 were that much smaller a have only ever had 049's might use a s/s and 10cc external tank and will definitely have to strengthen / thicken the wing anything else to note about building this thanks for the quick reply
Phill Airplane

the Gnat plan is one page. i had to adjust the printer a little to enlarge the plan until it was fullsize. i printed about 104% if i remember. with my HP printer it was simple, just adjust the enlarge button a little, then print. here is a photo of the plan turned sideways a little. the plan itself is a .pdf file.

Gnat 7.5" bipe control line conversion Gnatpa10

let me know if i can help. happydad Small Cox Logo

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Post  Dizzyman2011 on Fri Nov 23, 2012 2:48 am

Thankyou hd that's very helpful 104% I'll remember that have saved the plan and the article so will hopefully get it printed out this weekend am thinking wings probably
1/8 sanded to a nice section would be ok the rest I will probably leave as is am thinking flaps as well or do u think it's pointless on this as im guessing high power to weight ratio plus a small area of lift equates to a quick but not necessarily agile model (c/l at least) especially as I run 35' lines should be different and good fun though
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Post  ahrma_581 on Fri Nov 23, 2012 8:43 am

If span is 7.5", isn't area going to be a little shy for an .049's power/weight? (Even as a bipe) Quick as you said, but glide like the proverbial brick? Afterall, a c/l has to glide a bit, too.
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Post  Dizzyman2011 on Sat Nov 24, 2012 9:07 am

Hhhmmmm yes maybe so will try to build as light as I can and use 1/8 for the wings to try and introduce a bit of curvature and lift but I think once the powers off I will struggle a bit am thinking nice soft grass might help !!!
Phill
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Post  ahrma_581 on Sat Nov 24, 2012 11:12 am

Whip it...Whip it good!

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Post  Dizzyman2011 on Sat Nov 24, 2012 12:22 pm

Oh my god I think I just p****d myself laughing
cheers
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