Firstly, the entire quote was: "If I understand your situation, your have not built an airplane before." This indicates that he did not KNOW your experience level.
You'll have to understand that we have no way of knowing what you have done in the past because you did not tell us.
You say that you have built 2 trainers. Were these kits or ARF's? There is a world of differences there too. You leave us to guessing and making assumptions. Sorry if any of us offended you.

Don't use more t-pins than you need THROUGH the wood and not near the edges. There are also different sizes of pins. Try to use the smaller ones when penetrating the wood. Check around craft and dressmaking shops for the finer pins.

I would suggest that you check out http://airfieldmodels.com for information about building.

After gluing parts that are fixed with T-Pins, are they easy to separate from the lower surface where the plans with waxpaper is?

Could someone please make a classification with the different types of glues and in which parts are they preferably used on?
Also is interesting if these types of glue are able to sand.

http://airfieldmodels.com/informatio.../adhesives.htm

CA and epoxy are hard to sand well.

Wood glues like Tite Bond II or Elmers wood glue sand nicely.

Bruce, I´m not offended.
You´re right. I didn´t tell anything about my building experience. I have built an ARF and a kit, but a long time ago (15 years!!!). So, I´m back with this great hobby and I needed to update my knowledes about new techniques, tools, materials,... Actually we have the best tool to learn, INTERNET!!! But without the effort and dedication of people like you this tool won´t never work.

Thank´s again to all!

Alberto,

Bruce88123 was correct, I did not know what your experience was in building, you sounded like you were just starting to build. I hope I did not offend you.

The suggestions about Airfield Models is a good one, there is much info on building, tools, materials and such.

Dave Platt http://www.daveplattmodels.com/ , has good information in his videos but it can get expensive to get all 22 (over $600 US). I'd start with the "Scratch This" series. RC Scale Builder http://www.rcscalebuilder.com/forum/default.asp has reviews on many of these tape/DVDs. Also check the RCSB General section on Scratch Building.

Bruce is also correct on the sandability of the glues, just make sure they are completly dry first (overnight or more).

Yes, if you used wax paper and give each pins a 90º twist before pulling.

Glues - this subject gets lots of discussion. Personally, I like thin CA for joining the wing ribs to the spars. Thick CA for sheeting the wing. Wings just go so fast with CA compared to other glues. I like CA Gel for reenforcement blocks (like wing anchors and landing gear). Epoxy for the firewall and attaching the tail (though I use CA Gel for this is there is a lot of contact area). Epoxy also for any joint that needs a lot of strength - like joining elevator halves with a dowel. Almost everything else I like Titebond II for the glue. If I have to laminate balsa or sheet the fuselage with plywood I use Titebond II. It is a PVA (polyvinly acetate) and is used by carpenters and woodworkers and sands very well, dries waterproof and flexible. Similar to aliphatic glues (fat based) like Elmer's and others.

"Yes, if you used wax paper and give each pins a 90º twist before pulling. "

And the wax paper/plastic film will normally peel right off the part you are building. Use enough glue (epoxy and Tite-Bond type), but use it sparingly and wipe up any excess (don't try to wipe up CA . It will reduce weight and look better also.

skylarkmk1

do you have the videos from Dave platt? Is it worth to buy them to learn better and faster?

Alberto,

Wish I could say I did own them. I have borrowed some (mostly the finishing/painting ones) of them from my clubs video library and have learned more in a few hours of watching than I ever could have on my own. Ron Berg on RC Scale Builder, http://www.rcscalebuilder.com/forum/default.asp has done reviews on many of Dave's instructional tapes/DVDs. Look in the Designer section, Dave Platt, Important Topics, Scratch This-Video Review (and other tapes/DVDs) at RC Scale Builder.

skylarkmk1

Aren´t the "Building & Fiberglassing Techniques" videos better to start learning?

The degree of difficulty and complexity of model airplane designs is so broad that some scratch designs are actually easier and faster to build than a lot of kits are. Some of Randy Randolf's many 1/2A designs would be good first plans built projects for those who want to get their feet wet in plans building. The 1/2A Bee Tween could almost be built in a weekend if you are industrious and would make a great electric conversion if you don't wish to fool with Cox .049 engines.

Just go with an arf at this point.