Author Archives: JVDB

SARON Launch Day 23-09-2016

Another launch together with the Navro and DARE. Conditions were fine with a picture perfect launch. The Intimidator 5 was flown on a KNDX 2% RIO reload, together with an updated 440 Mhz – 1W Talky GPS tracker by LD and an 5.8GHz – 600mW VTx  with ImmersionRC antenna tracker ground station. Please click here to read the

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SARON Launch Day 20-05-2016

May 20th, was the first launch day of the 2016 season. Instead of all Dutch rocket organizations having their own separate launch days at the OTCVust, this time it was a combined launch campaign from the DARE, NAVRO, NERO & T-Minus with 12 rockets and 1 static motor test. We successfully flew the Intimidator 5 for the

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Sneak preview: 2-stage Intimidator 5 to 4

UPDATE: Currently on-hold / cancelled. Some initial sketches. I’m trying to use the existing workhorse Intimidator 5 as a booster by replacing the nose cone with an inter stage coupler. Re-using the I5 makes it a bit more difficult getting the whole rocket stable. It requires two new 98mm motors of which I recently stumbled upon some suitable phenolic casting tubes. Initial

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Rotary vacuum mixer design

Just modelling a rotary feedthrough for my vacuum lid using off the shelf items. Did not test whether the “reversed”  rotary shaft seal will hold the vacuum. It consists of: 10mm ground shaft with machined groove for circlip / e-clip 61900-2RS1 – Single Row Deep Groove Ball Bearing. 22x10x6mm Standard rotary shaft seal 10 x 19 x

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