Beyond The Sprues

Current and Finished Projects => Physical Models => Aero-space => Topic started by: ysi_maniac on November 16, 2013, 12:46:12 AM

Title: Boeing StratoFlyer
Post by: ysi_maniac on November 16, 2013, 12:46:12 AM
I cannot resist temptation to develop this 2D into 3D
(http://i1080.photobucket.com/albums/j340/ysi_maniac/Drawing/boeing-turbo-707-5.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/Drawing/boeing-turbo-707-5.jpg.html)

Certainly not a Tamigawa but it is not so bad. Engraved details (surprising)
(http://i1080.photobucket.com/albums/j340/ysi_maniac/ModellingProjects/StratoFlyer/StratoFlyer01.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/ModellingProjects/StratoFlyer/StratoFlyer01.jpg.html)
(http://i1080.photobucket.com/albums/j340/ysi_maniac/ModellingProjects/StratoFlyer/StratoFlyer02.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/ModellingProjects/StratoFlyer/StratoFlyer02.jpg.html)

A pair of Airfix MiG-21PF at 1/144 to build turboprops from fuselages.
(http://i1080.photobucket.com/albums/j340/ysi_maniac/ModellingProjects/StratoFlyer/StratoFlyer03.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/ModellingProjects/StratoFlyer/StratoFlyer03.jpg.html)

To make tail turbojets, instead of Tamiya's Farmer, as planned, I will use an odd model marked as MiG-23 !? at 1/144. In fact it seems to represent one of those MiG big interceptors designed between MiG-21 and MiG-23
(http://i1080.photobucket.com/albums/j340/ysi_maniac/ModellingProjects/StratoFlyer/StratoFlyer04.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/ModellingProjects/StratoFlyer/StratoFlyer04.jpg.html)
Title: Re: Boeing StratoFlyer
Post by: PR19_Kit on November 16, 2013, 02:55:01 AM
I guess that's one way to minimize your stash of unbuilt kits.  :)
Title: Re: Boeing StratoFlyer
Post by: apophenia on November 16, 2013, 03:55:13 AM
This is going to be interesting!  :)
Title: Re: Boeing StratoFlyer
Post by: GTX_Admin on November 16, 2013, 04:07:06 AM
Watching this one closely!
Title: Re: Boeing StratoFlyer
Post by: elmayerle on November 17, 2013, 05:18:14 AM
Kit for tail engines is of Ye-152M "Flipper" and was originally thought to be the Mig-23 by NATO.  The original molds were by Otaki and have passed through several users (Entex being one of the most common).  Not a great kit, but excellent raw material.
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on November 17, 2013, 11:24:31 AM
Thanks Evan. Yes, I remember it was an Entex kit. :)
Title: Re: Boeing StratoFlyer
Post by: Tophe on November 17, 2013, 06:19:05 PM
Great project! :)
Title: Re: Boeing StratoFlyer
Post by: ChrisF on November 18, 2013, 09:27:39 AM
Hmm this one is rather fasinating...
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on November 18, 2013, 09:30:24 PM
Thanks, gang!  :)
Title: Re: Boeing StratoFlyer
Post by: Brian da Basher on November 20, 2013, 04:41:28 AM
Wow this one's gonna be fun!

A mixed-propulsion airliner? Outstanding!

Brian da Basher
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on November 25, 2013, 02:36:41 AM
Can any of you speak about the aerodynamics of tailfin engine pod. I mean, was Tristar option better than DC-10's ?
Thanks.
Title: Re: Boeing StratoFlyer
Post by: elmayerle on November 25, 2013, 09:46:11 AM
Can any of you speak about the aerodynamics of tailfin engine pod. I mean, was Tristar option better than DC-10's ?
Thanks.
Aerodynamically, I'd call it a wash.  In terms of system safety and survival of an un-contained rotor burst of the center engine or engines, I'd much prefer the Tristar option.  Having done rotor non-containment studies for Part 25 certification (Lear 55), I've some familiarity with the factors involved.
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on November 25, 2013, 10:38:19 AM
What is the meaning of "a wash" in this context? A tie?
Sorry, my primary language is not English.
Title: Re: Boeing StratoFlyer
Post by: elmayerle on November 25, 2013, 10:46:03 AM
In this context, "a wash" means that the positive and negative aspects of one configuration vs. the other pretty much even out, with neither being that much better, or worse, than the other.  Properly executed, both work well and are viable, the differences are in how they affect systems installations and structure (and the weight of those) and, in turn, how that affects aircraft safety in the event (rare though they are) of an un-contained rotor burst on an engine.
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on November 25, 2013, 04:58:23 PM
Thanks!, Evan
Title: Re: Boeing StratoFlyer
Post by: finsrin on December 29, 2013, 04:24:49 PM
Splendid concept  :-*
Hope build is moving forward.
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on December 31, 2013, 04:24:34 AM
Slowly but going forward! :)
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on August 22, 2016, 05:45:17 AM
Detail of tail.

(http://i1080.photobucket.com/albums/j340/ysi_maniac/ModellingProjects/StratoFlyer/StratoFlyer05.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/ModellingProjects/StratoFlyer/StratoFlyer05.jpg.html)
(http://i1080.photobucket.com/albums/j340/ysi_maniac/ModellingProjects/StratoFlyer/StratoFlyer06.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/ModellingProjects/StratoFlyer/StratoFlyer06.jpg.html)
Title: Re: Boeing StratoFlyer
Post by: finsrin on August 22, 2016, 05:56:34 AM
Jumping ahead 2 1/2 years it is moving at pace of couple my builds.
Looks right.  Good eye for jet engines donor kit !
Title: Re: Boeing StratoFlyer
Post by: The Big Gimper on August 22, 2016, 06:35:44 AM
I really like what you have done so far. Keep going.
Title: Re: Boeing StratoFlyer
Post by: taiidantomcat on August 22, 2016, 07:34:50 AM
That tail section looks great!! Nice 3d engineering
Title: Re: Boeing StratoFlyer
Post by: Tophe on August 22, 2016, 11:03:23 PM
That tail section looks great!!
I have the same feeling :-*
Title: Re: Boeing StratoFlyer
Post by: Brian da Basher on August 25, 2016, 11:28:32 PM
It's nice to see an update on this great project!

I really like the look of those engines on the tail!

Great stuff!

Brian da Basher
Title: Re: Boeing StratoFlyer
Post by: Kerick on August 26, 2016, 08:33:57 AM
We can only move as the muse leads us!
Awesome job on the tail engines.
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on September 05, 2016, 05:28:10 PM
... turboprops ...

(http://i1080.photobucket.com/albums/j340/ysi_maniac/ModellingProjects/StratoFlyer/StratoFlyer07.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/ModellingProjects/StratoFlyer/StratoFlyer07.jpg.html)
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on September 05, 2016, 05:29:01 PM
Is it possible that the jets are not a booster? I mean, is it possible to balance thrust between propelers and jets to reach best efficiency?
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on September 12, 2016, 02:11:58 PM
(http://i1080.photobucket.com/albums/j340/ysi_maniac/ModellingProjects/StratoFlyer/StratoFlyer08.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/ModellingProjects/StratoFlyer/StratoFlyer08.jpg.html)

(http://i1080.photobucket.com/albums/j340/ysi_maniac/ModellingProjects/StratoFlyer/StratoFlyer09.jpg) (http://s1080.photobucket.com/user/ysi_maniac/media/ModellingProjects/StratoFlyer/StratoFlyer09.jpg.html)
Title: Re: Boeing StratoFlyer
Post by: GTX_Admin on September 13, 2016, 04:20:17 AM
Looking good
Title: Re: Boeing StratoFlyer
Post by: Brian da Basher on September 14, 2016, 06:07:10 AM
That's really coming together wonderfully and I like how the shape of the wing engines compliment those on the tail.

Brian da Basher
Title: Re: Boeing StratoFlyer
Post by: pigflyer on September 16, 2016, 12:16:57 AM
Is it possible that the jets are not a booster? I mean, is it possible to balance thrust between propelers and jets to reach best efficiency?

http://prototypes.free.fr/fr1/images/fr1_01.jpg (http://prototypes.free.fr/fr1/images/fr1_01.jpg)
The Ryan Fireball did, so why not this too?
Title: Re: Boeing StratoFlyer
Post by: Camthalion on October 11, 2016, 05:17:13 PM
looks good so far.
Title: Re: Boeing StratoFlyer
Post by: jcf on November 05, 2019, 05:14:21 AM
The Ryan XF2R-1 Dark Shark, developed from the Fireball, had a turbo-prop
in place of the piston engine.
(https://2.bp.blogspot.com/-xkAB2U2jryg/Vt5QdwoaX6I/AAAAAAAAC2g/fJEOhob4iGU/s1600/Ryan_F2RDarkShark.jpg)

The Convair XP-81 was also a turboprop/turbojet composite aircraft.
(https://upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Convzir_XP-81.jpg/1023px-Convzir_XP-81.jpg)
Title: Re: Boeing StratoFlyer
Post by: ysi_maniac on November 05, 2019, 05:46:08 PM
^^^^^
Sure! and I love both! :-* :-* :-*
Title: Re: Boeing StratoFlyer
Post by: finsrin on November 05, 2019, 06:09:24 PM
^^^^^
Sure! and I love both! :-* :-* :-*

Me too....
Title: Re: Boeing StratoFlyer
Post by: arctic warrior on November 06, 2019, 12:03:37 AM
This looks soo good - really like that tail engine!  ;D