A friend of mine is working on a 30.000Ns KNSB motor / rocket. 130mm minimum diameter rocket due for launch end of next month. It uses the nose cone and recovery gear from my Intimidator 5. Casing is 130x5mm tube - length 1800mm. The length of casing was limited to 1800mm due to the lathe being 1800mm from the wall :). I'm currently working on a 98mm Cesaroni 6XL clone on 10.000Ns candy reloads (and a 300m shortened version which fits my I5) - see attachment. With clone I mean similar in outer dimensions, this will give me some practice runs before trying the real deal on a N5800 or O3400 minimum diameter bird. The clone motor is far from optimized as the casing is made from 100x5 aluminium tube which is machined down to 98,3mm. It weighs a ton but that's OK. Aluminium bulkhead and full graphite nozzle with divergent extension in the aluminium nozzle retainer. Also working on a new vacuum casting set up now the grains and batches are getting bigger and bigger (up to 3kg). After some inspiration on the Candy-O-Matic from PK tried to do something similar. Bought a single induction plate. Anybody got some experience with melting candy on an induction plate?, how would it handle KNSB + RIO (especially the RIO part being heated by induction? Furthermore a 6l pressure cooker and now sourcing for a 300x300x25mm polycarbonate lid but this stuff is very expensive. Got a 12V window wiper motor at hand to automate the stirring but will first try manual stirring (small steps). Ordered the materials for a DIY vacuum feed trough <http://www.verticallimits.nl/?p=1979>- not sure if that will work out with a inverse positioned radial shaft seal. Radial shaft seal can withstand up to 0,5bar (my pumps usually pulls -0,85bar max). I understood the seal can handle higher pressures but the "lip" will be pressed harder against the shaft which results in more friction / wear. I only will be going 15-30rpm. Still working on the paddle design - any suggestions. Progress is very slow but we're getting there. Since we're updating. Also copied a set up I saw a long time ago on SS2S to accurately drill evenly spaced radial holes. It comprises of a cheap 80mm Chinese dividing table, DIY expandable mandrel which fits in my hollow spindle and a Proxxon long neck drill (a bit to light for the job) fitted in the tool post. I will be planning to fly my I5 again on the same launch as the 130mm minimum diameter rocket end of April but this time on a 6.000NS KNSB RIO reload. Would be interested to compare against the previous KNSB and KNDX flights (which cooked my st st nozzle). However priority is on the 30k Ns flight which also need to land safely or I will not have a NC or recovery gear. VL On Sun, Mar 8, 2015 at 4:47 PM, Steve Peterson <steve_peterson@xxxxxxxxxxxxx > wrote: > Seen and opened. > --Steve > > > On 03/08/2015 08:41 AM, Matt Fletcher wrote: > > Let's check. If you can see an OpenRocket file, then attachments are > allowed. :) > > [image: CAP Banner] > > > > > *C/CMSgt Matt Fletcher, CAP *Raleigh Wake Composite Squadron Zulu Flight > Sergeant > > (C) *919-446-1875 <919-446-1875>* > > (H) 919-303-8005 > > U.S. Air Force Auxiliary > > gocivilairpatrol.com <http://www.gocivilairpatrol.com/> > > > <https://www.facebook.com/pages/Civil-Air-Patrol/107647995924164> > <http://instagram.com/civil__air__patrol> > <https://twitter.com/civilairpatrol> > <https://www.flickr.com/photos/civilairpatrol/sets/> > > > > On Sun, Mar 8, 2015 at 10:47 AM, Steve Peterson < > steve_peterson@xxxxxxxxxxxxx> wrote: > >> I believe they are. At least as the administrator, I didn't check the >> box to ban them. >> --Steve >> >> On 03/07/2015 05:14 PM, steve ghioto wrote: >> >> Hello Michael, >> >> Thanks for the post, apparently the list is still working. I have a >> question, are attachments allowed on Sugpro? >> >> Steve G >> >> >> > >
Attachment:
20150211 - 130mm rocket.jpg
Description: JPEG image
Attachment:
IMG-20150129-00454.jpg
Description: JPEG image
Attachment:
098.01.01.00 - Cesaroni clone 7 grain motor - 11.11.2014.JPG
Description: JPEG image
Attachment:
IMG-20150201-00459.jpg
Description: JPEG image
Attachment:
IMG-20150201-00460.jpg
Description: JPEG image
