Re: [RCSE] Ballast suggestions
Take 1/2 or 3/4 copper or brass pipe cut into various sizes, whatever fits over CG in fuse. Drill hole in about 1/2 away from middle and insert bolt. (This is important as lead is hard to drill.) Now melt lead and pour into tube. I made a funnel out of sheet aluminum. Drill a hole in bottom of fuse 1/2 in front of CG. Now slide into fuse drop bolt through hole install nut or wing nut. I did this for the Emerald. It was tricky getting the ballast in and out. Long tools were required. But it worked. At 07:47 PM 6/12/2005, Bill Johns wrote: On Jun 12, 2005, at 5:03 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Gent's I'd like to add a provision for ballast to my Sapphire. Solid steel wing rod?? Just a thought. Bill --- Never judge a day by the weather. Bill Johns Colton, WA RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Ballast suggestions, Long!
Dan, What I have done in my Shappire is this. Make up some 1/2 K S brass slugs at the increments you want to be able to add weight. Fill with your weight of choice, lead shot/epoxy, tungsten powder, or melted tire weights. Obtain some Estes Rocket tubes, # BT-5. These have a nominal ID of .518, perfect for a slip fit on the K S tubing. Just do a search on the Net, found multiple suppliers or look in a good hobby shop if you can find one these days. Make a plug to close the aft end of the tube, so the slugs don't fly all the way to the tail feathers when inserted. I like lite-ply, light weight and bonds to the tubes with thin CA like crazy. If you want to really strengthen the tube wrap it with 1.5 oz. fiberglass cloth using CA. Or, you can just soak the inside with CA. If you CA the inside, you might need to ream the tube after the CA sets with a piece of 1/2 brass tube. I have done either and both, with both the cloth and CA the tubes are really STIFF and LIGHT. That is what I just recently installed in my Eraser. I recommend a brass tube collar CA'd to the paper tube where you plan to have a piano wire retainer to carry landing shock loads. The Eraser tube weighed less than 3/8 oz. with the collar. If you are installing this in the Sapphire I sold you and still have the pin type landing skeg, I would recommend two tubes. These go either side of the landing skeg. Make a bulkhead for the aft portion of the tubes and the forward portion of the tubes. Install all of this in your fuselage so the full ballast load rests at the CG. Don't you just love building a ship in a bottle? Now make up some 3/8 hard balsa spacers to your liking so you can use less than the full load. 3/8 balsa will fit perfectly if you just break the corners. Just make sure the spacers keep the ballast at the CG. I will also recommend that if you require a balsa spacer at the retainer pin like I do, CA a piece of brass shim stock on the end that contacts the piano wire retainer pin to prevent crushing when dorking. This is all easier to see than to write. The next time we meet up let me know so I can bring my Sapphire and show how it looks. This set-up allows me to carry 15.5 oz. of ballast in my Sapphire if desired. It's not an even pound because I am using the slugs I made 20+ years ago. The Eraser set-up carries the same load in one tube, all centered on my favorite CG. It's nice having only one ballast system in the flight box for all of your arrows! Mark W. - Original Message - From: [EMAIL PROTECTED] To: soaring@airage.com Sent: Sunday, June 12, 2005 7:03 PM Subject: [RCSE] Ballast suggestions Gent's I'd like to add a provision for ballast to my Sapphire. Looking for suggestions on tube/plug combinations that fit nicely. Didn't have a whole lot of luck at Home Depot. Dan RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Ballast suggestions, Long!
Thanks Mark and to the others who responded. I've concluded that ship building in a bottle will be worth the effort. -Original Message- From: Mark Williams [EMAIL PROTECTED] To: [EMAIL PROTECTED]; soaring@airage.com Sent: Mon, 13 Jun 2005 19:41:35 -0500 Subject: Re: [RCSE] Ballast suggestions, Long! Dan, What I have done in my Shappire is this. Make up some 1/2 K S brass slugs at the increments you want to be able to add weight. Fill with your weight of choice, lead shot/epoxy, tungsten powder, or melted tire weights. Obtain some Estes Rocket tubes, # BT-5. These have a nominal ID of .518, perfect for a slip fit on the K S tubing. Just do a search on the Net, found multiple suppliers or look in a good hobby shop if you can find one these days. Make a plug to close the aft end of the tube, so the slugs don't fly all the way to the tail feathers when inserted. I like lite-ply, light weight and bonds to the tubes with thin CA like crazy. If you want to really strengthen the tube wrap it with 1.5 oz. fiberglass cloth using CA. Or, you can just soak the inside with CA. If you CA the inside, you might need to ream the tube after the CA sets with a piece of 1/2 brass tube. I have done either and both, with both the cloth and CA the tubes are really STIFF and LIGHT. That is what I just recently installed in my Eraser. I recommend a brass tube collar CA'd to the paper tube where you plan to have a piano wire retainer to carry landing shock loads. The Eraser tube weighed less than 3/8 oz. with the collar. If you are installing this in the Sapphire I sold you and still have the pin type landing skeg, I would recommend two tubes. These go either side of the landing skeg. Make a bulkhead for the aft portion of the tubes and the forward portion of the tubes. Install all of this in your fuselage so the full ballast load rests at the CG. Don't you just love building a ship in a bottle? Now make up some 3/8 hard balsa spacers to your liking so you can use less than the full load. 3/8 balsa will fit perfectly if you just break the corners. Just make sure the spacers keep the ballast at the CG. I will also recommend that if you require a balsa spacer at the retainer pin like I do, CA a piece of brass shim stock on the end that contacts the piano wire retainer pin to prevent crushing when dorking. This is all easier to see than to write. The next time we meet up let me know so I can bring my Sapphire and show how it looks. This set-up allows me to carry 15.5 oz. of ballast in my Sapphire if desired. It's not an even pound because I am using the slugs I made 20+ years ago. The Eraser set-up carries the same load in one tube, all centered on my favorite CG. It's nice having only one ballast system in the flight box for all of your arrows! Mark W. - Original Message - From: [EMAIL PROTECTED] To: soaring@airage.com Sent: Sunday, June 12, 2005 7:03 PM Subject: [RCSE] Ballast suggestions Gent's I'd like to add a provision for ballast to my Sapphire. Looking for suggestions on tube/plug combinations that fit nicely. Didn't have a whole lot of luck at Home Depot. Dan RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
[RCSE] Ballast suggestions
Gent's I'd like to add a provision for ballast to my Sapphire. Looking for suggestions on tube/plug combinations that fit nicely. Didn't have a whole lot of luck at Home Depot. Dan RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Ballast suggestions
On Jun 12, 2005, at 5:03 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Gent's I'd like to add a provision for ballast to my Sapphire. Solid steel wing rod?? Just a thought. Bill --- Never judge a day by the weather. Bill Johns Colton, WA RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
Re: [RCSE] Ballast suggestions
I've considered it and have one on order. I'd like a bit more control however. -Original Message- From: Bill Johns [EMAIL PROTECTED] To: Soaring Yahoo soaring@airage.com Sent: Sun, 12 Jun 2005 17:47:19 -0700 Subject: Re: [RCSE] Ballast suggestions On Jun 12, 2005, at 5:03 PM, [EMAIL PROTECTED] [EMAIL PROTECTED] wrote: Gent's I'd like to add a provision for ballast to my Sapphire. Solid steel wing rod?? Just a thought. Bill --- Never judge a day by the weather. Bill Johns Colton, WA RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format RCSE-List facilities provided by Model Airplane News. Send subscribe and unsubscribe requests to [EMAIL PROTECTED] Please note that subscribe and unsubscribe messages must be sent in text only format with MIME turned off. Email sent from web based email such as Hotmail and AOL are generally NOT in text format
