Lippisch Delta I and III (oz14405)
About this Plan
Lippisch Delta I and III. Profile scale model for rubber power.
Quote: "Al's Flying Oddities Nos.4 & 5: Lippisch Delta I and III, by Al Backstrom.
These two airplanes were a portion of the development work done by Dr Lippisch in his series of tailless air-planes that culminated in the delta wing aircraft of today. The Delta I was a large low powered machine that started as a glider. Its span was approx. 43 ft and it was powered by a 32 HP Bristol Cherub. The airplane was used extensively for demonstration.
The Delta III started as a pusher very similar to the Delta I but was finished with a tractor engine configuration. It was smaller and had more power than the Delta I. It was also the first tailless airplane I have found that was certificated as a standard airplane. Part of this certification required that it spin and recover which it did.
The D-ELTA registration shown was for real, not just my whim. Unfortunately the Delta III was short lived as it was washed out by a grandstanding ferry pilot. Informa-tion on these airplanes was contained in Dr Lippisch's book 'The Delta Wing, History and Development'.
From a modelling standpoint, these two models provide a great demonstration of the stability differences between pusher and tractor props. The Delta I with its pusher prop uses scale area tip fins and dihedral. The airplanes were apparently both silver but I used white and natural balsa rather than trying to get the color for such simple models. The registration on Delta III was done with 1/2 in and 1 in lettering guides.
You will note that the color on the fusel-age and fins of my Delta I are very white. This is because I used white foam from a food tray to make them rather than sheet balsa. Both of these models are now using 4 in North Pacific props, but I have flown the Delta I with over 6 inprop dia. The Delta III does not like bigger props.
You should use the flying instructions for the other models in this series. Because of the small wing chords the models are sensitive to small changes in CG locations."
Direct submission to Outerzone.
Supplementary file notes
Article.
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
-
(oz14405)
Lippisch Delta I and III
by Al Backstrom
March 1989
19in span
Scale Rubber F/F
clean :)
all formers complete :)
got article :) -
Submitted: 13/02/2023
Filesize: 125KB
Format: • PDFbitmap
Credit*: theshadow
Downloads: 337
-
undefined | help
see Wikipedia | search Outerzone
------------
Test link:
search RCLibrary 3views (opens in new window)
ScaleType: This (oz14405) 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/undefined
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
Al Backstrom and his taste for the Unconventionals. There must have been some interesting flying sessions but that must have been the point :)Miguel - 27/02/2023
Add a comment
- Lippisch Delta I and III (oz14405)
- Plan File Filesize: 125KB Filename: Lippisch_Delta_oz14405.pdf
- Supplement Filesize: 2016KB Filename: Lippisch_Delta_oz14405_article.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, 2011-2024.
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.