Installing a dethermalizer on a big rubber powered airplane

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[@jimbo2629]

A spring is always better than a rubber band.👍😊. I’ve not seen your method before.

[@michaelmaclean2892]

Thank you for such a detailed explanation of how to do this. Your videos are a great help to a beginner in free flight such as myself.

[@brap242818]

I think the perfection loop would work good for this project. Easy to learn. I use it all the time in fly fishing.

[@MsScoooper]

I remember at SEFF some years ago you had a very cool vintage looking rubber powered plane,, I was throwing a DLG and not finding much lift so I stopped to watch you launch it,, well long story short,,, It found lots of lift and you were going after it toward the road a 1/4 mile away,, fun stuff!! just say'in,, they can get away from anyone :-)

[@user-gz2jp1kt9k]

Terrific! Very helpful Josh. It would be nice to have a close up view of the formed wire " mouse trap" design feature. Thanks!

[@joshuawfinn]

I need to do that at some point...there's a diagram somewhere in the Technical Library at freeflight.org

[@davemaurer6379]

good job!

[@bigfish7129]

I just finished my Gypsy Great airplane Thanks for the tips on this plane Was nice I had you're videos before build You're mercury kit is next Please keep yours videos coming and let Hope fly more lol 😆

[@joshuawfinn]

Good to hear! Please to let me know how it flies for you, and I hope you get some more flying time soon!

[@fadfromnz]

Got any closeups of the mouse trap area. It was a little hard to see in the video. Ken

[@humbertoparra7687]

Tienes aviones a la venta, donde se pueden comprar ?

[@MORCOPOLO0817]

I hope that it is acid free cardboard.

[@jonshereshaw3198]

Hi Josh: I liked the D/T video. By the way, what is the material used to cover the Fuselage?

[@joshuawfinn]

I used polyspan on this one. It's synthetic tissue so it doesn't sag when wet.

[@user-gz2jp1kt9k]

Josh- Great tutorial. Just a couple of questions, if you don't mind. What material were you using for the dethermalizer line and what gauge is it? And what gauge wire did you use and recommend for the mouse trap release and the hooks that you formed? Thanks!

[@joshuawfinn]

Robert, I used 20 lb spiderwire braided line and the mousetrap and hooks can be .031 (1/32") or .025" piano wire on a model this size. Smaller models can use .020", larger and you'd want to go up to .042" wire.

[@michaelrollo6518]

what is going on with this large rubber air planes?

[@larrychouinard7747]

could the band from the tail be hooked directly to the timer and eliminate the other mechanical lever and spring?

[@joshuawfinn]

Not in this case. On a model this size, the tension required to hold the tail down is so large that it would overpower the timer.

[@radiocontrolegliders782]

looks slot like my big sparky im building. 53"

[@radiocontrolegliders782]

one guy in new your has a rubber powered channel and makes these rubber powered still but single channel radio controle with just rudder so dont have to chase them so far.. ( :

[@bjornjohansson4911]

Dear you. That bottle You use to actuate the cyano-glue? Is that isopropanol, or something, like baking-soda solution? Actuators are available in spray-cans in Europe, but they splash contents everywhere. Your method is so laidback and precise. Spaying such pointy jobs, is not a solution. Just curious. :) Love from Sweden.

[@joshuawfinn]

It's standard CA accelerator. If you take the lid off and dip it onto the surface, it works great

[@cjbarfield8497]

I followed your video as posted and now my airplanes goes up instead of down when the DT is activated.

[@joshuawfinn]

Lol!

[@larryseals4665]

Too complicated and externally messy

[@joshuawfinn]

Enjoy losing your planes then. This is how we build contest planes.

[@stevenwrigley9694]

How would you rig up a dt then?

[@larryseals4665]

Pfft... tell that to Herb Kothe who used and still uses fuse timers

[@joshuawfinn]

@@larryseals4665 trolling will get you nowhere here. Find yourself a safe space somewhere else.

[@joshuawfinn]

Just to be clear to anyone else why this is trolling: roughly half of major contests sites now specifically ban the use of fuses.