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#11
03-02-2020, 06:03 PM
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I flew mine once only, on an Estes E12-4.... https://youtu.be/SoUyEM4hwL8 ... 
__________________
Fleet : http://s84.photobucket.com/albums/k...Rocket%20Fleet/ http://youtube.com/swillie 
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#12
03-02-2020, 07:03 PM
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My condolences Swille. It hurts to watch that.
Personally, I wouldn't use any version of an E or a C5 engine in anything I care about. I've been flying a long time and except for a single B6 engine, every cato I've ever seen (more than 20) was some form of an E or a C5. I know many people here will defend both and that's fine, not my rocket. Verna http://www.vernarockets.com http://www.amazon.com/dp/B00HHJHOK6 http://www.amazon.com/dp/B00O14ET8K http://www.amazon.com/dp/B01CX1UPCG https://www.amazon.com/dp/B07C95BNQH
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#13
03-02-2020, 07:12 PM
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For my K-36 vintage Estes Saturn - V, heavily modified to use a 24 mm core and four 18 mm outboards, I flew it with a D12-3 core and four C6-3 outboards. Fully loaded the model weighed 1 pound, 3 1/2 ounces. Also used the Centuri style clear slip on fins to ensure stability. In the first and only flight flown in July 2009, got an excellent boost; however the five second delay of the D12 and C6's would have been better as the model (as observed during this flight) could have easily coasted to a much higher altitude.
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Dave, NAR # 21853 SR.
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#14
03-02-2020, 07:50 PM
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#15
03-02-2020, 07:53 PM
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I stand corrected, the 4 outside motor tubes are open at the top,so the 4 18mm motors will vent out in between the space between the top of the fin can and the bottom of the upper bulkhead.
I am hoping that there is enough volume to handle the gases without damage
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#16
03-02-2020, 07:55 PM
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I always like the Saturn V liftoff photos like your’s and Dave’s (a couple posts after yours). The Saturn V, either real or model, always looks so regal and powerful in flight. Earl
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Earl L. Cagle, Jr. NAR# 29523 TRA# 962 SAM# 73 Owner/Producer Point 39 Productions Rocket-Brained Since 1970
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#17
03-02-2020, 08:12 PM
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In my K-36 Estes Saturn - V build, I modified the "interiors" so the four 18 mm body tubes and single 24 mm body tube would vent their ejection charge simultaneously. Above these cluster of body tubes inside the BT-101, I designed and used a baffle ejection system that eliminated the need to use recovery wadding. Worked just great. Photos below are that of the top part of the ejection baffle as seen from the top of the parachute compartment area:
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Dave, NAR # 21853 SR.
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#18
03-02-2020, 08:14 PM
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Use C5-3s outboard and just EJECT THEM out the tubes.
They are biodegradable. No I don't give a hoot about leaving them on the landscape.
__________________
When in doubt, WHACK the GAS and DITCH the brake !!! Yes, there is such a thing as NORMAL, if you have to ask what is "NORMAL" , you probably aren't ! Failure may not be an OPTION, but it is ALWAYS a POSSIBILITY. ALL systems are GO for MAYHEM, CHAOS, TURMOIL, FIASCOS, and HAVOC !
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#19
03-02-2020, 08:17 PM
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Are those shock chords simply adhered with duct tape?
__________________
Fleet : http://s84.photobucket.com/albums/k...Rocket%20Fleet/ http://youtube.com/swillie
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#20
03-02-2020, 08:21 PM
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Trust me, there isn't enough room. That being the case, with 4 engines you still need to vent. Just drill 3-4, 3/8th" holes in bottom engine mount ring and/or let them kick out. Verna http://www.vernarockets.com http://www.amazon.com/dp/B00HHJHOK6 http://www.amazon.com/dp/B00O14ET8K http://www.amazon.com/dp/B01CX1UPCG https://www.amazon.com/dp/B07C95BNQH
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