Welcome to the exciting world of Slope VTPR Aerobatics. What does VTPR stand for? In French, 'voltige tres pres du relief' or aerobatics very close to the terrain. How close? Ground '0' close! We are proud since 2009 to be the first Blog dedicated 100% to VTPR style of aerobatics. Enjoy one of the most exciting forms of RC glider aerobatics in the world right here!
Wednesday, July 11, 2012
3.5m Foam AIR-100
A great video of Ludo's large 3.5m Air-100 in EPP being flown in Brest France. Here are some of his notes to me recently about the fabrication. This model looks like a lot of fun with its gentle and majestic flight characteristics making it perfect for low & slow VTPR. The roll rate is very good and is able to fly in a very small box. Very durable making a nice recipe for ultimate fun in a BIG way.
envergure : 350 cm (environ)
longueur : 180 cm
profils : SB 98 VR/VS
masse : 3500g
Eachwinghalfis183cm long(2times the lengthof the loavesofEPPat GTI) and two8mmcarbontubesparsofD4intoreinforcethe intradosandthe extrados. The trailing edgeis cutsothatits thickness is3mm=> juststick to itaflatcarbon3x1mmto stiffen theBDFand the fin. The whole iscoated withliquidadhesive neoprenetapeandtaped toarmed(roll width 400mm: as you sayheshouldnotbemissedwhen installing thetape...)
The fuselageis alsofullEPP/carbon=> 20kg/m3densitywellenoughgiven thepresentvolume. The general form ismadewith hot wireand thenroundingare madewith a cutterandcoarsesanding block. Finally, akeywingcarbon rodof 12mmcan be mountedquickly and easilyall(not even the wingsrestraint, nipples centeringat the trailing edgereturning tostrength ...