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Well, it has in fact my American friend :) 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:

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:

Finally, before starting the new season I'd managed to paint the model. Here is the launch video. Motor - Estes C6-7. https://youtu.be/DMJLNFHc8tU Unfortunately, I misjudged the wind strength and forgot how high this model can fly. As the result she was lost to the rocket eating...

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 was tall and soft enough. Here is the video: https://youtu.be/DP7qDuDk4_Y On the good side is...

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 recovery works.

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 photo I have added to the top post.

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 decided to adapt the configuration for use of available conventional A-size motors. Apart...

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

Some time ago I build a similar antenna. The black box on the photo is a simple receiver. Here are some details of the design: https://www.rocketryforum.com/showthread.php?22221-Simple-RF-tracker The tracker saved my model on at least 5 occasions. Would be a total loss without it...

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 on the safe side and added some nose weight. Otherwise, without much effort from my side, the model...

Just want to share my latest design: It was inspired by this little plane: I used the same "flat pack" approach as for my previous model - RocketRacer . All panels are cut from ether cardboard or thin balsa sheets. Here is the assembly video: HC4Oj3WdfpA And here is Libelle's...

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 lifting canard design requires larger canard wing for stability. I mean larger than the...

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 realised it needs updating. I have to add dimensions of the recovery system frame and recommended...

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 said it's a glider. It is not. CG is to far forward to allow proper gliding. I suppose it may glide...

I was sorting out videos and photos on my PC and found out another launch video and a bit blurry shot of the recovery. https://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 be a glider. CG is kept in front of a position it would be at in a proper glider and there is...

Thank you, but my skills are not extrasensory of course. . 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. Unfortunately I did not manage to find out who manufactures it and how exactly it is called. There...