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Showing posts from January, 2018

Adhesive for Foam

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I use single component polyurethane for majority of my foam projects.. it bonds strongly with expanded and extruded polystyrene (thermocole/ depron),  does not eat/corrode foam, it is light, allows time to  align parts, and cures to a hard finish. Used many brands, .. but the BEST is what I was able to source  as a sample from Mumbai based Krishna Antioxidants Pvt, Ltd, CRISTOFIX PU 9. .. Thanks to Mr. Adarsh  from Krishna Antioxidants for taking the pain to understand the requirement and helping me with a sample. This product has a long shelf life allowing for better storage and prolonged use, and low viscosity  compared to big brands like Fevicol, Araldite The way I use it it to decant a portion of it into a large disposable syringe.. use the plunder to ease out the air bubbles, and then cap the nozzle. And to use it, just unplug the nozzle and squeeze  the plunger.. it keeps the air out of the syringe and enhances shelf life by by months.... i wish ...

F-18 GROWLER

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This is a F-18 with 30" span and with a 2826 2000Kv motor It is based on a scale F18 Growler with some changes in the dimensions.. refer to the picture below for the dimensions It has ailerons, elevator and rudder as controls and one CF spar in the wing Has a wire skid fixed undercarriage, and can do a rolling takeoff from a decently flat surface.. A good  flyer, and with the heavier parts (motor, bty) close to the CG was quite maneuverable  .. The finished but unpainted version.. the picture gives a feel of the size The canopy can be removed to access the battery compartment It has flown many sorties.. and has been retired and parts recycles (like many of my planes.. storage is a challenge) Here is a flight video  https://www.youtube.com/watch?v=YPAsXsSOFqg&t=8s