Author Topic: BD-5 family drawings  (Read 1523 times)

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Offline Weaver

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Re: BD-5 family drawings
« Reply #45 on: June 12, 2019, 12:37:23 am »
That twin-boom canard design looks like it would probably have something going for it in real life.

Re the BD-5S sailplane stability issue, one thing that occurs to me is that, since the engine isn't there, you could fit an extended boom into the tube where the prop/jet used to go, and mount the tail surfaces on it, thus putting them further back for greater leverage and also moving the C0fG back a bit to compensate for the loss of the engine. Of course, structural strength would be an issue, as would the lack of space for control linkages. Perhaps the latter issue might see them going back to a V-tail?
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Online Tophe

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Re: BD-5 family drawings
« Reply #46 on: June 12, 2019, 03:02:31 am »
Dear Weaver,
I thank you for this idea that I would note have thought of, great!:


And this makes me think of the opposite direction: an even smaller BD-5, like a control challenge… For the code BD-5S could have been Small but was already Sailplane, BD-5T could have been Tiny but was already Turbo, so BD-5L is Smallest…:
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Re: BD-5 family drawings
« Reply #47 on: June 12, 2019, 03:31:09 am »
And the BD-5L-3 was like a flying catalogue of versions, while the L-2 was a tailless fast one (even more difficult to control):

(thanks again, Weaver)
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Online PR19_Kit

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Re: BD-5 family drawings
« Reply #48 on: June 12, 2019, 04:08:39 am »
I can see there being a run on the LS kit of the BD5 at this rate.  ;D
Any aircraft can be improved by fitting longer wings, and/or a longer fuselage

...and I'm not a closeted 'Take That' fan, I'm a REAL fan! :)

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Kit

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Re: BD-5 family drawings
« Reply #49 on: June 12, 2019, 04:34:14 am »
Sorry this is not yet the end... :-\

I add a simple asymmetric derivative like a Bv-141:


With a whole family of its own...:
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Offline Flyer

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Re: BD-5 family drawings
« Reply #50 on: June 12, 2019, 05:20:36 am »
I like the BD-5B-341 and BD-5L-2, they would probably make neat R/C models...  ;) :thumbsup:
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Re: BD-5 family drawings
« Reply #51 on: June 12, 2019, 10:15:08 am »
Thanks to imagine they would actually fly!
(even if this is without pilot inside, to endanger no life…) ;D
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Re: BD-5 family drawings
« Reply #52 on: June 12, 2019, 06:06:56 pm »
I agree with our friend Ericr logic: each airplane (or microplane) family must have seaplane versions (flying boat or/and floatplane):
« Last Edit: June 13, 2019, 06:54:26 am by Tophe »
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Re: BD-5 family drawings
« Reply #53 on: June 12, 2019, 09:29:06 pm »
I agree with our friend Ericr logic: each airplane (or microplane) family must have seaplane versions (flying boat or/and floatplane):
Not forgetting twin-hull and single-float versions, of course:

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Re: BD-5 family drawings
« Reply #54 on: June 12, 2019, 09:42:04 pm »
And maybe this one counts both as seaplane and (vertical) twin-boom (two longitudinal bodies holding the tail):
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Re: BD-5 family drawings
« Reply #55 on: June 13, 2019, 06:46:16 am »
The biplane BD-5 had specific advantages: solidity, maneuverability... not speed.
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Re: BD-5 family drawings
« Reply #56 on: June 13, 2019, 09:10:49 am »
And maybe this one counts both as seaplane and (vertical) twin-boom (two longitudinal bodies holding the tail):

these are all excellent ideas ! thanks a lot !


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Re: BD-5 family drawings
« Reply #57 on: June 13, 2019, 11:20:57 am »
Thanks for the approval of our "invented seaplanes" expert! ;D
(for visitors ignoring the magic of ericr's ones, see https://www.whatifmodellers.com/index.php?topic=40517.0 - 57 pages only... ;) )
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Re: BD-5 family drawings
« Reply #58 on: June 13, 2019, 11:37:25 am »
 ;)

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Re: BD-5 family drawings
« Reply #59 on: June 13, 2019, 06:55:55 pm »
Thanks!

Now, more seriously, the BD-5+5 Mistel... whose layout is justified by a good technical reason: "attracting attention"...:

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