I just saw this:
(https://www.hlj.com/media/catalog/product/cache/acedba8d3f43cedb2fbb4f1aa3b47451/u/s/usi00015_0.jpg)
https://www.hlj.com/1-72-scale-prototype-fighter-beriev-b-10m-usi00015 (https://www.hlj.com/1-72-scale-prototype-fighter-beriev-b-10m-usi00015)
from Ushi models. Their web site is in Japanese http://ushimodels.com/ (http://ushimodels.com/) but the pictures look interesting.
I pre-ordered one of the Beriev kits from HLJ. Russian Schneider racer????
TomZ
Ohhh thanks for posting. Never heard of that design.
Remove the floats and the design is very familiar, can't quite remember what, but I will : eventually. :angel:
Quote from: NARSES2 on September 12, 2021, 06:26:08 AM
Remove the floats and the design is very familiar, can't quite remember what, but I will : eventually. :angel:
On Secret Projects there is some info about the Beriev B-10 which is a land plane. This is the B-10M which is supposed to be the seaplane version.
TomZ
Quote from: NARSES2 on September 12, 2021, 06:26:08 AM
Remove the floats and the design is very familiar, can't quite remember what, but I will : eventually. :angel:
SAAB 21? Minus the second engine
https://en.wikipedia.org/wiki/SAAB_21
Quote from: sandiego89 on September 12, 2021, 02:11:52 PM
Quote from: NARSES2 on September 12, 2021, 06:26:08 AM
Remove the floats and the design is very familiar, can't quite remember what, but I will : eventually. :angel:
SAAB 21? Minus the second engine
https://en.wikipedia.org/wiki/SAAB_21
That was my first thought in trying to think where I may have seen something similar, but there was at least one similar Japanese project, Manshu whatever ?, which I've built a kit of. Plus I may well have seen the Beriev landplane , or similar, on the Soviet SIG's stand at shows as they have lots of models of projects and prototypes as well as What If's.
There are pics of a built version of this on here somewhere.
Quote from: NARSES2 on September 12, 2021, 11:23:11 PM
Quote from: sandiego89 on September 12, 2021, 02:11:52 PM
Quote from: NARSES2 on September 12, 2021, 06:26:08 AM
Remove the floats and the design is very familiar, can't quite remember what, but I will : eventually. :angel:
SAAB 21? Minus the second engine
https://en.wikipedia.org/wiki/SAAB_21
That was my first thought in trying to think where I may have seen something similar, but there was at least one similar Japanese project, Manshu whatever ?, which I've built a kit of. Plus I may well have seen the Beriev landplane , or similar, on the Soviet SIG's stand at shows as they have lots of models of projects and prototypes as well as What If's.
Bolkhovitinov S used the same engine configuration?
(https://i.imgur.com/XsFKGW7.jpg)
Quote from: zenrat on September 13, 2021, 04:13:03 AM
There are pics of a built version of this on here somewhere.
I posted it on the 'WHIFS Found Surfing' thread. I'll repost here:
Posted on Twitter by @ushimodels here: https://twitter.com/ushimodels/status/1426541682917478404?s=20
Twitter translation of Ushi's tweet:
"1/72 Beriev B-10M resin kit completed. It is a fighter planned in 1941 aiming for the fastest at that time. It was not developed due to the overly ambitious design of the skewer-shaped twin-engine propulsion system."
(https://pbs.twimg.com/media/E8wQ9mdVgAAmLlF?format=jpg&name=large)(https://pbs.twimg.com/media/E8wQ-VKVEAA9Jol?format=jpg&name=large)
(https://pbs.twimg.com/media/E8wTe2YUUAYbOJ_?format=jpg&name=large)(https://pbs.twimg.com/media/E8wTfK8VoAkuvN4?format=jpg&name=large)
Skewer shaped? Surely it's just two V12s either connected together, or with one prop shaft passing clean through the other, a la MC-72?
I'm a bit baffled by the two bladed props. Two M-107 engines both with a two bladed prop? I think I will be building it with at least three bladed props.
TomZ
The MC-72 only had two bladers as well, perhaps it was a 'style' thing of the times?
Quote from: PR19_Kit on September 13, 2021, 09:20:17 AM
Skewer shaped? Surely it's just two V12s either connected together, or with one prop shaft passing clean through the other, a la MC-72?
Remember that's a Twitter auto-translate of Japanese, which can be a bit gnomic even when translated by an expert human.
The word that auto-translators seem to be struggling with is 'kushigata' which some other ones render as 'comb shaped' rather than 'skewer shaped'. That might be the clue: the drive from the forward engine is 'threaded through' the V of the rear one, like two combs locked together.
Quote from: PR19_Kit on September 13, 2021, 09:20:17 AM
Skewer shaped? Surely it's just two V12s either connected together, or with one prop shaft passing clean through the other, a la MC-72?
So one engine is skewered by the other's prop shaft. Maybe 'skewered' and 'threaded' are the same word in some languages?
Quote from: PR19_Kit on September 13, 2021, 11:02:25 AM
The MC-72 only had two bladers as well, perhaps it was a 'style' thing of the times?
Can you imagine the sound though with twin V-12's and two- two bladed props?! :o Glorious or shrikeing? Both?
And with them going in OPPOSITE directions too! :o
Quote from: sandiego89 on September 14, 2021, 02:51:09 PM
Quote from: PR19_Kit on September 13, 2021, 11:02:25 AM
The MC-72 only had two bladers as well, perhaps it was a 'style' thing of the times?
Can you imagine the sound though with twin V-12's and two- two bladed props?! :o Glorious or shrikeing? Both?
Quote from: PR19_Kit on September 15, 2021, 12:25:58 AM
And with them going in OPPOSITE directions too! :o
Probably give the Thunderscreech a run for its money
The majority of the early contra-prop systems
used two-bladed props. Which isn't surprising
as two-bladed props were still very common.
There is no reason it would be louder than any
other contra-prop setup, arguably it could be
quieter as there would be fewer crossings of
blades, thus less airflow interference than with
a three-bladed system.
As an aside the most efficient propeller design of
all, in terms of using available power, is a counter
-balanced single bladed propeller as it has the
least amount of drag to overcome.