http://groups.yahoo.com/group/OldRockets/ OldRockets--Nostalgia Model Rocketry Mon, 09 Nov 2009 00:06:06 GMT Chan Stevens http://groups.yahoo.com/group/OldRockets/message/37983 http://groups.yahoo.com/group/OldRockets/message/37983 Yeah, I noticed they have some at $9.99 in their clearance section that are NiCd. ... [Non-text portions of this message have been removed] Sun, 08 Nov 2009 23:50:10 GMT Bob Kaplow http://groups.yahoo.com/group/OldRockets/message/37982 http://groups.yahoo.com/group/OldRockets/message/37982 7.2v packs are NiCad or NiMH, not gell cell. Sun, 08 Nov 2009 18:19:33 GMT Chan Stevens http://groups.yahoo.com/group/OldRockets/message/37981 http://groups.yahoo.com/group/OldRockets/message/37981 Tower hobbies, look for 7.2v gel cells, 6-cell pack. --Chan Stevens ... [Non-text portions of this message have been removed] Sun, 08 Nov 2009 17:47:21 GMT jpalillo http://groups.yahoo.com/group/OldRockets/message/37980 http://groups.yahoo.com/group/OldRockets/message/37980 Does anyone know where I can get new recharge batteries for the Estes Pro Launcher? The ones I have can't be charged anymore and Radio Shack does not have Fri, 06 Nov 2009 14:29:46 GMT charles russell http://groups.yahoo.com/group/OldRockets/message/37979 http://groups.yahoo.com/group/OldRockets/message/37979 I was the first MESS committee chairman back in 1970 as part of the Standards and Testing committee. If MESS forms are submitted and there is a trend, S&T has Fri, 06 Nov 2009 04:01:00 GMT Christopher Brian Deem http://groups.yahoo.com/group/OldRockets/message/37978 http://groups.yahoo.com/group/OldRockets/message/37978 I still have my Cirrus, but I lost the original nose cone about 40 years ago. ... -- Christopher Brian Deem NAR 12308 TRA 2256 level II [Non-text portions of Fri, 06 Nov 2009 03:18:11 GMT astron_art http://groups.yahoo.com/group/OldRockets/message/37977 http://groups.yahoo.com/group/OldRockets/message/37977 Hey, Art Nestor here. I've spent some time recently with Irv Wait documenting his accomplishments to our hobby & Rocket Development Corp. for the NAR Digital Fri, 06 Nov 2009 01:10:37 GMT Bob Kaplow http://groups.yahoo.com/group/OldRockets/message/37976 http://groups.yahoo.com/group/OldRockets/message/37976 ... Hot ejections on mini motors have been around a LOT longer than 7 years. Maybe 27 years. Maybe more. Fri, 06 Nov 2009 00:01:10 GMT Doug http://groups.yahoo.com/group/OldRockets/message/37975 http://groups.yahoo.com/group/OldRockets/message/37975 ... Good question, and, unfortunately, I haven't logged any data, although I've had several of these grenades wreck my gliders. In my defense, the motors Thu, 05 Nov 2009 22:26:19 GMT jbuckley@... http://groups.yahoo.com/group/OldRockets/message/37974 http://groups.yahoo.com/group/OldRockets/message/37974 FIle a MESS report! Thu, 05 Nov 2009 03:08:34 GMT tonyl6619 http://groups.yahoo.com/group/OldRockets/message/37973 http://groups.yahoo.com/group/OldRockets/message/37973 What is the deal with the ejection charges on 1/2A engines these days? I've had one rocket and three gliders badly damaged by the ejection charges, even with Wed, 04 Nov 2009 23:06:42 GMT Vatsaas, Richard D http://groups.yahoo.com/group/OldRockets/message/37972 http://groups.yahoo.com/group/OldRockets/message/37972 I think you could try either durams or plaster of paris. Spray a little Pam in the wraps before making the mold. Wipe off any extra. From: doug holverson Wed, 04 Nov 2009 22:54:36 GMT doug holverson http://groups.yahoo.com/group/OldRockets/message/37971 http://groups.yahoo.com/group/OldRockets/message/37971 ... What would anybody recommend for pulling a mold off say Centuri Orion or Skylab wraps? DGH Wed, 04 Nov 2009 22:51:43 GMT Vatsaas, Richard D http://groups.yahoo.com/group/OldRockets/message/37970 http://groups.yahoo.com/group/OldRockets/message/37970 Durham's supposedly does not shrink when it dries. Plaster actually grows. From: Steve Humphrey [mailto:shumphrey@...] Sent: Wednesday, November 04, 2009 Wed, 04 Nov 2009 22:11:40 GMT Steve Humphrey http://groups.yahoo.com/group/OldRockets/message/37969 http://groups.yahoo.com/group/OldRockets/message/37969 ... As you mentioned later on in your post, preheating the mold is necessary. I've made molds from Durham's Water Putty, which is similar (identical?) to