Penguin Fart Racing
RCTalk Qualifier
I just bought two totes full of used / wrecked stuff for $50. The vintage TAMIYA GJRE GAWM Speed Boat caught my eye. After being sunm and recovered it was in sorry shape. PIX of my gash patches soo. Motorcwas a MABUCHI RS-540SH- 7520 which I took apart, de-rusted, resolved and reassembled. WORKS ! In the box of junk was an absolutely WRECKED GRAUPNER heli. Took the motor ( SPEED 600 BB 7.2 vDC p/n 1787 ) apart. After de-rusting, pounding out the body shell dents and resoldering the armature leads it works. Will probably add bias ceramic caps to boot. Being a 540 size brushed, it might work in my resurrected FIRE HAWK. Any thoughts on the GRAUPNER motor and adding water cooling ? Rudder shaft will be greased uk brass and rudder will be airfoil-shaped brass. Motor and rudder shafts will be lubricated with DOW-CORNING high vacuum seal grease ( absolutely THE BESF STUFF if you can get it ). What size NiMH battery do you recommend? Might use an ESC, receiver, etc. lying around salvaged from a TRAXXAS car and some fast response high torque FUTABA servos from my hoard / stash. Any thoughts here ? Boat was poorly built before sinking. Stripped decals, used a witches brew of soft-scrub cleanser, CLR, and charcoal lighter fluid for cleaning wigh a SCOTCH-BRITE pad. Have yet to smooth out hull dents / dings with a bloc, of hardwood and a hair dryer. Dental, picks came in handy for old adhesive removal. Would appreciate any tips on parts placement so the boat won't list and tip over. Thank you for taking the time to read. this meandering. As a Chrmistry teacher, I found charcoal lighter is good for removing tape residue and brake fluid for removing paint and decals. CLR or LIME-AWAY removes the calcium carbonate of hard water scale and sometimes industrial wall cleaner TSP ( trisodium phosphate ) slowly removes rust since iron(III) phosphate is a bazillion times less soluble than iron(III) oxide.