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Author Topic: VMC Cessna Bird Dog  (Read 6622 times)
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cvasecuk
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« Reply #75 on: March 07, 2018, 10:15:37 AM »

That does look very nice. If VMC get them out soon I would not be surprised to see one entered in KS at FF Nats.
Ron
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ZK-AUD
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« Reply #76 on: March 07, 2018, 12:01:20 PM »

Andrew's tape technique but with thinned RC56 is my preference.  It actually draws itself in to the edge and dries clear in any case so glue smears are unlikely
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OZPAF
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« Reply #77 on: March 08, 2018, 07:49:13 PM »

Another impressive effort Andrew. A simple choice but so well done.

John
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Monz
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« Reply #78 on: April 22, 2018, 01:06:09 PM »

And here's Dad flying his version.


https://www.youtube.com/watch?v=5rSnH-cr_3U

https://www.youtube.com/watch?v=4PutuuN1s18
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Kman
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« Reply #79 on: April 27, 2018, 08:28:20 AM »

Hi Andrew,

I have just seen the Bird Dog on VMC website, it is down as 18” wingspan, is this correct?

Klaus
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Andrew Darby
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« Reply #80 on: April 27, 2018, 11:24:56 AM »

Hi Klaus,

No, that is incorrect, it is 21" (535mm)

I will ask them to correct it, thanks for pointing it out...

Andrew
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Klunk
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« Reply #81 on: May 25, 2018, 04:23:12 AM »

Ordered.

As was some light grey tissue. The plan is to finish it off as a USAF O1.  Possibly a shark-mouth O1-E.  Not a scheme I'd have considered but for Pete F's shark-mouth A9.  See the attachment. And if the shark-mouth doesn't work out there are plenty of POG USAF O1-{x} variants to pick from.

Something to look forward to building come autumn / winter.
Attached files Thumbnail(s):
Re: VMC Cessna Bird Dog
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Newbie_John
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« Reply #82 on: March 21, 2019, 06:27:34 PM »

Just thought I'd "bump" this topic by saying I've just flown my first FF indoor model, and it was the VMC Bird Dog!
So big thanks to Andrew for a kit that a beginner to these models was able to put together without too much difficulty, and flew first time!

I took it to Berinsford, where Ian Melville & co were suitably encouraging about my construction attempts (my stubby little fingers need a lot more practice Cheesy), and they guided me through it's first trimming flights, introducing me to downthrust and motor widths along the way Grin What a great, friendly bunch of guys!

At the end of my session, it was actually circling the hall (briefly - I've got to learn to add lightness next Wink Wink - flying weight is 36g at the moment Angry )

My wife can't quite believe that I've actually managed to fly a model that's come home in one piece - it's obviously been the radio bit that was the problem with my others!!

Please bear with me as I add a proud video of my first success at indoor flying ( and you can tell by Management's voice that she was impressed/ astonished too Grin Grin Grin

https://youtu.be/oCWOzifCPJo

A very chuffed John
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OZPAF
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« Reply #83 on: March 21, 2019, 07:57:48 PM »

Good on you John. An enthusiastic response like that will make Andrew's day I would guess.

John
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Jack Plane
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« Reply #84 on: March 22, 2019, 04:36:24 AM »

Ta-Da!!

Well done!  Next challenge... ROG  Grin
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billdennis747
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« Reply #85 on: March 22, 2019, 05:03:50 AM »

Yes, well done. That looks a very small hall - it will go even better given more room to roam.
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TheLurker
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« Reply #86 on: March 22, 2019, 09:08:13 AM »

It's enormously satisfying (and not a little addictive) when they do fly isn't it?  Smiley

Nice one.
Lurk.
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Andrew Darby
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« Reply #87 on: March 22, 2019, 04:40:02 PM »

Nice flight Newbie John, you should be justifiably proud.  36g isn’t all that bad, as there is lots of (relatively heavy) glazing, but there is plenty of wing area to the Dawg to keep it aloft.

In a bigger hall you can open up that turn which will gain you more altitude, thus you should be able to fit a slightly longer motor and be in very very good good form...

Congrats, and yes it made my day!  Grin

Andrew

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Klunk
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« Reply #88 on: March 22, 2019, 07:08:27 PM »

Thanks everybody for the kind words and encouragement - much appreciated!
I think I'm hooked Grin Grin Grin

And amazingly it did ROG for 1 circuit, Jack Plane, but SWMBO didn't have the video going! Roll Eyes

Andrew - thanks for the tact about my AUW , but I've got a lot to learn yet about how to get it down to your 26g or so !

Cheers, John
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Andrew Darby
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« Reply #89 on: March 22, 2019, 07:24:34 PM »

Hey John glad you are hooked- Just have fun!  Grin Grin

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Klunk
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« Reply #90 on: March 23, 2019, 02:47:03 AM »

Andrew - thanks for the tact about my AUW , but I've got a lot to learn yet about how to get it down to your 26g or so !
It's easy John:
1. Use lighter wood than you think you need
2. Keep the back end especially light so you need less noseweight
After 50 years I'm nearly there. Another 20 should do it.
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Jack Plane
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« Reply #91 on: March 23, 2019, 03:05:03 AM »

Also use less glue.  Don't actually starve the joints but one generally needs far less glue than one thinks.  (I use Aliphatic as its faster drying and easier to sand than PVA.)  Also don't lather on too much dope.  For indoor flying, one coat of non-shrinking dope thinned 50/50 will do.

Jon
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SP250
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« Reply #92 on: March 23, 2019, 06:29:32 AM »

Welcome along John

Now that makes 3x current or ex Daimler SP250 owners who are also into aeromodelling (Alan Fry being the other).
As you have found already, this bunch are just as friendly and helpful as the Daimler club.
I look forward to seeing you at the indoor nats in a month's time for a catch up.

John M

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abl
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« Reply #93 on: March 23, 2019, 11:13:16 AM »

Nicely done, John.

Andrew - thanks for the tact about my AUW , but I've got a lot to learn yet about how to get it down to your 26g or so !
It's easy John:
1. Use lighter wood than you think you need
2. Keep the back end especially light so you need less noseweight
After 50 years I'm nearly there. Another 20 should do it.

What he said...  Smiley

Andy
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ZK-AUD
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« Reply #94 on: March 23, 2019, 11:52:05 AM »






It's easy John:
1. Use lighter wood than you think you need
2. Keep the back end especially light so you need less noseweight
After 50 years I'm nearly there. Another 20 should do it.
[/quote]

And my personal favourites:
3. Be enthusiastic with your sanding block
4. Use thinner wire than supplied
5.  Scrape your plastic props down to about 60% of their original weight
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ZK-AUD
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« Reply #95 on: March 23, 2019, 11:55:57 AM »

Oh, and congratulations on your success!!  For a bonus point see if you can get SWMBO to build one now.
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Newbie_John
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« Reply #96 on: March 24, 2019, 01:35:09 PM »

Many thanks to all for the advice and kind comments.

I measured my nose weight, which I'd put in the undercowl exhaust area rather than the actual nose, to discover I'd had to add 4.5g to achieve balance. Since the tail moment is 4:1 from there, if I'd just saved 1g or so on the tail area, I now realise I'd have dropped my flying weight by 4g or so. Old hat to you folks, but I'm now beginning to understand the comments about wood weight and excess glue much more Wink

To help me progress, I've bought the BMFA Gymminie Cricket and Frog to give my stubby little fingers practice in handling light small section wood, and a pipette-type dispenser for my glue bottle  Grin

And ZK-AUD, no chance I'm going to let SWMBO show me up on this stuff!!

Cheers, John
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Ian Melville
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« Reply #97 on: March 26, 2019, 07:29:55 AM »

Hi John, great to meet you at the OFMAC events. The dog is going well and awakened my passion for the type.

Nice that SWMBO is willing to take control of the rubber winding, while you act as stooge.  Smiley cue fettish  jokes!

Hope you can make the indoor nationals, a great day for networking and inspiration.
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Newbie_John
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« Reply #98 on: March 26, 2019, 11:07:17 AM »

Thanks, Ian!

Yes, SWMBO and I are booked in to come & spectate at Walsall, where I'm hoping to get her  certificated as "Winder-in-Chief"- or should that be Certified  Cheesy Cheesy Cheesy
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