Bloch 175 (oz16426)
About this Plan
Bloch 175. Free flight scale model twin for rubber power. Wingspan 16 in.
Direct submission to Outerzone.
Quote: "BLOCH 175 FIGHTER/LIGHT BOMBER
16” SPAN NEO-DIMER
DRAWN 26 APR 2024
This plan was drawn to see if a viable twin Dimer could be built to fly in the Dimer style construction.
WING CONSTRUCTION:
The wing is built with sheet ribs of 1/16” and 1/16” sq and sheet balsa. Twin nacelles are built with box construction and with formers and stringers.
FUSELAGE CONSTRUCTION:
Typical box construction using 1/16” sq strips of balsa with formers of 1/16” sheet to round off the dorsal shape of the fuselage. Stringers are used only on the top of the fuselage. Flat sides built flat on the building board. Second side on top of the first side.
EMPENNAGE CONSTRUCTION:
Uses 1/16” sq and sheet balsa with sheet vertical fin/rudders from 1/16” sheet.
Regards,Tom Akery/Sky9pilot"
Corrections?
Did we get something wrong with these details about this plan (especially the datafile)?
That happens sometimes. You can help us fix it.
Add a correction
-
Bloch_MB.170 | help
see Wikipedia | search Outerzone
------------
Test link:
search RCLibrary 3views (opens in new window)
ScaleType: This (oz16426) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.
If we got this right, you now have a couple of direct links (above) to 1. see the Wikipedia page, and 2. search Oz for more plans of this type. If we didn't, then see below.
Notes:
ScaleType is formed from the last part of the Wikipedia page address, which here is https://en.wikipedia.org/wiki/Bloch_MB.170
Wikipedia page addresses may well change over time.
For more obscure types, there currently will be no Wiki page found. We tag these cases as ScaleType = NotFound. These will change over time.
Corrections? Use the correction form to tell us the new/better ScaleType link we should be using. Thanks.
Do you have a photo you'd like to submit for this page? Then email admin@outerzone.co.uk
User comments
From the current FAC rulebook: "New pseudo Dime plans must appear in a recognized print publication such as a local club newsletter, NFFS Journal,FAC Newsletter, etc. to be approved as an Official Dimer for FAC events." Emphasis on "print publication."
Da - 01/12/2025
I'd hazard to say that the Outerzone has as large a circulation as all the publications mentioned. If not larger. As for credibility, I'd also state Tom Akery's scale designs are generally recognised to be as accurate to prototype as any.
His plans may contain errors? Perhaps (where?), but so can plans from the Great Ones in printed sources. No one is exempt.
Also, these plans in online format are also much more practical to print into building size than magazine plans that you have to rescale. Perhaps that rules paragraph is in need of rejuvenation.
Miguel - 01/12/2025
"This plan was drawn to see if a viable twin Dimer could be built to fly in the Dimer style construction."
The design is an exercise in building in that type of construction.
pmw - 01/12/2025
Excellent! Thank you
Rodrigo Burgo - 02/12/2025
By definition, an approved pseudo dimer plan is 11"x 17" (ledger size) with a letter sized parts sheet, so everything fits nicely in a magazine-sized format at 100% and does not need to be rescaled!
Also, several nice "approved" dimer sized twins have already been published, and examples flown in FAC competition.
Join the FAC, rather than telling them to "rejuvenate" their in-house rules. In fact this particular requirement was clarified in a recent rules revision. Lots of organizations send out exclusive content to their members. Nothing wrong with that!
DA - 02/12/2025
Sigh. What is it that you want to happen now? Some policing of the use of correct terminology? I'm not convinced as yet that anyone else here wants that. Everyone else here seems to be just having fun.
SteveWMD - 02/12/2025
Amen!
Jan Novick - 02/12/2025
Add a comment
- Bloch 175 (oz16426)
- Plan File Filesize: 213KB Filename: Bloch_175_oz16426.pdf
- help with downloads
Notes
* Credit field
The Credit field in the Outerzone database is designed to recognise and credit the hard work done in scanning and digitally cleaning these vintage and old timer model aircraft plans to get them into a usable format. Currently, it is also used to credit people simply for uploading the plan to a forum on the internet. Which is not quite the same thing. This will change soon. Probably.
Scaling
This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.
Terms of Use
© Outerzone, 2011-2025.
All content is free to download for personal use.
For non-personal use and/or publication: plans, photos, excerpts, links etc may be used, provided that full and clear credit is given to Outerzone with appropriate and specific direction to the original content i.e. a direct hyperlink back to the Outerzone source page.
Unauthorized use and/or duplication of this material without express and written permission from this site's owner is strictly prohibited. If we discover that content is being stolen, we will consider filing a formal DMCA notice.