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Well, it has in fact my American friend :)
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However, I have to confess I'm following French in this one - LINK

After the successful test reported above I've started working on the up-scaled version. Here is a couple of progress shots:

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Looked good to be precise.
I did like this model very much. I've already decided to rebuild it.

Nice. Thank you for posting.
I like this one:
http://www.raketenmodellbau.org/repository/post/7625894/bild3

Finally, before starting the new season I'd managed to paint the model.
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Here is the launch video. Motor - Estes C6-7.


http://youtu.be/DMJLNFHc8tU

Unfortunately,...

I've finally had a chance to launch the model. Unfortunately the only motor I had available was A3-4T. Taking into account the model size and mass (50g) 4 seconds delay was too long. Luckily grass...

I promise you'll know the outcome. I did a static test with A-size motors firing through the very same exhaust pipe. All went well and I don't expect any issues assuming CG is at the right place and...

Both effects are possible of course. The first flight will tell. However, there are eight 5mm air intake ports above the exhost tube. The diagram does not show them, but they can been on on the...

This is my most unconventional model to date. The model was inspired by an article on jetex.org about a model of so called coleopter.
Unfortunately, no Jetex or similar motors were available. So I...

Just in case. This spreadsheet may be of some help - http://ebookbrowse.com/138-finflutter-xls-d28945889

Some time ago I build a similar antenna.
https://8ce7f82c-a-62cb3a1a-s-sites.googlegroups.com/site/theskydartteam/projects/rf-tracker/2012-12-04%2019.29.45.jpg

The black box on the photo is a...

Thank you Scotty Dog. It was indeed fun to design and build. Although I made some minor mistakes on the way, I'm quite pleased with the result.

As for the airplane/rocket mix I decided to stay...

Just want to share my latest design:

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It was inspired by this little plane:

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I used the same "flat pack" approach as for my previous model - RocketRacer . All panels are cut...

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Anyone volunteers to model this - LINK

If you do want to get it gliding properly, I suggest getting CG in a correct location first. This link may help to find it. My knowledge of aerodynamics is quite basic, but as far as I understand a...

Eric,

There are two models on my web site - model B and model C. I suggest model C. It is a bit wider. This will make packing the recovery streamer easier. I have checked the page again and...

Dlazarus6660,

Did you replicate the recovery system I used? In this post I showed how it's done in my variant.
You've mentioned A8-3. Where does ejection discharge in your variant?

I've never...

I was sorting out videos and photos on my PC and found out another launch video and a bit blurry shot of the recovery.

http://youtu.be/zMuZ_CyW8cY

Launched straight up and in windless conditions it'll be a rocket. Launch a bit off the vertical (lets say 5 degrease) or/and in presence of wind it'll be a rocket going a bit ballistic pretending to...

Thank you, but my skills are not extrasensory of course.
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The red and yellow material is paper. A kind of tracing-paper I found in a local hobby shop. A single page weights about 6.25 grams....

My humble attempt:


http://youtu.be/7OCm9WLCwKA

Here are some constructional photos - LINK. Unfortunately all design sketches are not in an electronic form yet. I'm planning to scan them at...

Will this help any how?:
http://www.rasaero.com/dl_technical_reports.htm
http://www.rocketryplanet.com/content/view/236/38/
http://mysite.verizon.net/wjvincent/RandD/bd/bd.html

Casio Exilim EX-FC100

Unfortunately not.

I have built a second RocketRacer. Now I can race them against each other.

http://youtu.be/7IeqHTRVtcc

19mm - It was a typo. I think I was thinking about BT-20 tube OD.
I have just finished another variant of the same design. This time I used light balsa papered with office paper and CA glue....

It is the first time someone is building my design! Very very interesting. I am looking forward to seeing your pics.

Here is another nice one from 1946..1950s (Link)

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Blake and Mortimer comic book

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Link

I have been thinking about modifying and building the design for 19mm motors, but as I have some other ideas in the pipe line, it is not a priority at the moment. However, if someone is interested in...

Just wondering if someone has ever attempted to build this:

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