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Author Topic: Bostonian Bede BD5  (Read 9794 times)
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atesus
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« Reply #100 on: October 30, 2012, 05:08:30 PM »

It was flying so stable, nice! Sorry about the damage - albeit minor...

--Ates
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OZPAF
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« Reply #101 on: October 30, 2012, 07:53:19 PM »

You had that fellow to the right of the fire doors worried Grin It does fly nicely Jon. now we know why you wanted to use a front hook - I mean tricycle undercarriage Grin
have fun
John
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biggles0106
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« Reply #102 on: October 30, 2012, 08:12:11 PM »

She is absolutely beautiful. Are there any plans available, or is it totally designed and built by you Jon?
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Yak 52
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« Reply #103 on: October 30, 2012, 08:16:58 PM »

now we know why you wanted to use a front hook - I mean tricycle undercarriage Grin

Cheesy Grin

Biggles, thank you. Yes it's my design but I have drawn a plan which I intend to upload here at some point: if I can get the thing flying that is!
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biggles0106
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« Reply #104 on: October 30, 2012, 08:23:33 PM »

You are almost there! Plans would be wonderful.
Thank you,
- Mike
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Pete Fardell
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« Reply #105 on: October 30, 2012, 09:07:49 PM »

Well honestly, what a silly place to put a fire door. Great to see her flying though! Look forward to more.
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Dave Andreski
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« Reply #106 on: November 03, 2012, 12:26:07 PM »

Jon,
I think your BD5 is flying at a nice speed.
After a few 'nervous' trimming sessions, you'll will have it doing what you want.
Dave
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Yak 52
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« Reply #107 on: November 27, 2012, 07:35:31 PM »

I managed to get the BD5 all fixed up and took it outside to give it some space on friday. I had a couple of promising flights but there was a lot of windshear and she spiralled in busting the wing properly this time. The wing will need a total rebuild now Undecided :sigh:
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biggles0106
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« Reply #108 on: November 27, 2012, 07:45:30 PM »

It will be worth it in the end!
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OZPAF
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« Reply #109 on: November 27, 2012, 07:46:10 PM »

Bad luck Jon. It sounds like it may have been a case of just more turbulence than it could handle. Spiral stability on this model would be an interestin exercise though. With a pusher prop adding more effective fin area perhaps more dihedral is required compared to a normal tractor layout. I'm sure you took all this into considration though.
John
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Yak 52
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« Reply #110 on: November 27, 2012, 08:11:22 PM »

Tell me about it - the saga continues...

John, I actually wasn't too worried about spiral stability - before friday! It has quite a chunk of dihedral but it did seem twitchy in the gusts. It seemed ok on the (few) indoor flights, in fact at one point indoors I though it may have been 'under finned' ie lacking yaw stability  Undecided As I suggested I've mostly forgotten whatever aerodynamic reasoning that was behind the original design (should build quicker Smiley) but I'm not so sure if I had thought of that. I was thinking that the pusher prop was stabilizing in yaw, but maybe forgetting the effect on the spiral mode... I remember that Tobgun's peanut was "surprising stable" for it's dihedral but of course it had less of a chunky fuselage.

I think the wing was just too light anyway so I haven't had chance to get any consistency yet. Next one will be quite a bit tougher.

I'm shelving it for the moment: I've drawn and started building a new Bostonian design with a proper airfoil (BE50). It's going to be called a Boston Beagle ('cause it has a long but square nose) and a less indecent tail moment arm (!).
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rgroener
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« Reply #111 on: November 28, 2012, 02:24:00 AM »

Jon, sad to hear that your Bostonian BD5 isn't anymore... Looking forward to #2 Smiley
You are building a new Bostonian?! Popcorn is ready, you can just start to post the progress Grin

Best regards Roman
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Yak 52
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« Reply #112 on: November 28, 2012, 06:03:58 AM »

Hi Roman, just the wing that needs a rebuild fortunately - the fuselage is fine.

I'll do a thread on the new one soon - it's a 'characterless' bostonian though!  Designed to win (hopefully) Grin
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rgroener
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« Reply #113 on: November 28, 2012, 06:42:53 AM »

Jon, good to hear that the fuse is fine. Looking forward to the thread.

Bostonians are never characterless Cheesy

Roman
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biggles0106
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« Reply #114 on: December 19, 2012, 01:44:42 PM »

Any further flights?
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Yak 52
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« Reply #115 on: December 19, 2012, 04:57:59 PM »

Hi Biggles, fraid not... repairs are on the to do list but don't hold your breath  Undecided
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fred
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« Reply #116 on: February 18, 2013, 11:09:55 PM »

IF you want a BD5 Look Here: (looong thread with masses of info and photos tho)
 http://www.rcgroups.com/forums/showthread.php?t=20785&highlight=bd5
 I have built one and 'exquisite' is an understatement. the plans are 100% accurate and legible to even a bumbler like myself.
http://www.rcgroups.com/forums/showthread.php?t=293026
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Dave Andreski
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« Reply #117 on: February 19, 2013, 12:53:22 PM »

IF you want a BD5 Look Here: (looong thread with masses of info and photos tho)
 http://www.rcgroups.com/forums/showthread.php?t=20785&highlight=bd5
 I have built one and 'exquisite' is an understatement. the plans are 100% accurate and legible to even a bumbler like myself.
http://www.rcgroups.com/forums/showthread.php?t=293026
Or you could stay closer to the current topic/thread and build from the P-Nut plan I uploaded to the Plans Gallery today. Huh
Dave
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biggles0106
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« Reply #118 on: February 19, 2013, 01:43:31 PM »

Has anyone built the Nick DeCarlis  5 for RC?
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Dave Andreski
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« Reply #119 on: February 19, 2013, 01:44:58 PM »

Has anyone built the Nick DeCarlis  5 for RC?
Who can say?
Will you be the first?
Remember... this is an INDOOR Freeflight subject.
Dave
« Last Edit: February 19, 2013, 02:07:47 PM by Dave Andreski » Logged

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biggles0106
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« Reply #120 on: February 19, 2013, 02:12:00 PM »

I am sure there are indoor RC planes (at least I am told there is such a thing)....but a BD5...who knows - maybe I will be the first!!  Grin

Mike
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Yak 52
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« Reply #121 on: February 19, 2013, 02:18:37 PM »

Thanks for the link Fred. Of course this one is only 75% BD5, but 100% Bostonian Cheesy

The BD5 repairs are working there way to the top of my to do list. I do intend to produce a finished plan but I would like to get it flying reasonably first...

The peanut version looks good. Thanks Dave.


Jon
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fred
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« Reply #122 on: March 02, 2013, 01:59:06 PM »

Clever use of the Lego as Build jig.
 My kids had Lego Mats as well... quite large sheets actually,
 It just occurred to me that A Lego Mat could be good to place/lock the Lego onto for accurate/semi permanent Jig fits.
 
OK.. Just added the links as reference. I thought it was on topic ??
Note that one can print those plans at.. Any.. scale one chooses to, even tiled.. as the freebie Acrobat X+ reader now allows it.
 It builds into a ~40 gram model.. as is... sans avionics of course.
 
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Yak 52
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« Reply #123 on: October 31, 2013, 01:09:02 PM »

.... Finally got around to repairing the little rocket ship. I had to build a new port wing from scratch, but it's hard to tell other than the old one looks scruffier.

Hopefully I'll get this flying soon.
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danmellor
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« Reply #124 on: October 31, 2013, 03:02:03 PM »

Yeah!!

Dan.
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