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Pete McCrary

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Pete McCrary last won the day on August 13

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About Pete McCrary

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    Advanced Member
  • Birthday 01/30/1934

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  • Location
    Manassas, Virginia
  • Interests
    Small boatbuilding, sailing, cruising, woodworking, history ..

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  1. Core Sound 20 Mk 3 -- #4 "Chessie" . .

    I managed to get a few more things done for Chessie: Here's a little Tach & Hour meter. The pickup is just a small wire wrapped (~ 4 turns) turns around the spark plug cable. You can see the other end at lower left on the meter. No external power required. I'm told that there's an internal battery (power for low-drain liquid crystal display) with > 10 yr life. A small Ritchie hand-held compass mounted on a bracket just held on the mizzen partner by friction. Proof of concept cabin shelf dry-fitted on the port side. I had a similar shelf on Tattoo -- and it was very convenient and didn't get in the way. My 3-day cruise at the MASCF will be the real test. Chessie is now sporting her "badges." They still need several more coats of clearcoat. Hope to see some of you at the MASCF. I hope to arrive there Thursday afternoon. Probably won't do the Wye Island trip this year. Maybe next year.
  2. Aussie CS 20-3#5 "Dragonfly 2"

    Wow !!! She's a beauty and something to be proud of. I'd sure like to come aboard for a sail. Maybe in the right season I could actually come to Australia (never been west of Kwajalien or east of Cape Town, South Africa (or Venice, Italy).
  3. Trailer for "Chessie," a Core Sound 20 Mk3 . .

    Regarding the bunks. Delivered, they were "pressure-treated" 2 x 6s covered with bunk carpet. They were very heavy and quite stiff. They carry very little load as their main purpose is to balance the boat so that almost all the load is carried on the keel. So, to lighten the total trailer weight and make [the bunks] more flexible, I removed the bunk carpet and tossed the 2 x 6s and substituted [them] with 1 x 6s carefully chosen (straight grain & no ugly knots) from pressure treated stock at Home Depot. So that I could use the same mounting hardware -- I cut short (4 each ~ 16" x 1 x 6) to double-up each bunk end -- and then reapplied the carpets. The modified bunks are quite flexible, but stiff enough so that Chessie doesn't wobble (hardly any) on the trailer when I climb aboard. They were flexible enough so that when fitting them to Chessie's hull, I could push the ends close-up against her bottom (at the ends) so that the buinks' baring surfaces extended nearly the whole length of the bunk -- nicely distributing the load. There are three rollers -- each mounted on pressure-treated 2 x 6 stock. The roller centerlines are about 4" offset from the center lines of each trailer cross-brace. This adds a little "give" to the roller (as the off-center load torques the cross-brace) which softens the ride a little. I wanted to "equalize" the load on the three rollers -- but had no way to measure the load on each. So, with the boat resting on the two aft rollers, I loosely mounted the forward roller on a wooden cross-brace approximately under Blk 2. Then I placed a jack under the keel (near the cross-brace) and raised the boat up a little bit (maybe ~ < 1") -- and then fabricated a spacer under the roller frame such that the roller firmly pressed up against the keel. When lowering the boat the cross-brace was deflected ~ 3/8". The span is about 33". If I stand on a 33" span on a 2 x 6 -- my 200 lb weight will deflect the board < 1/4". So, I'd say that the forward roller has significantly relieved the load on the middle roller and increased it (somewhat) on the aft roller. After about 300 road miles, inspection has not revealed any visible damage to the keel from the rollers. And I've hit some pretty big bumps at highway speeds.
  4. Here's the data on Chessie's trailer: Load-Rite (Elite), Model 5S-172200V Load limit: 2,200 lbs Tires: ST175/13C, 50 psi Widths: Total 90", Between fenders 73" (see Note 1) Length: 18' 10" Weight as finally configured (9/9/2017): 680 lbs, including add-ons (see Note 2) Weight (unsprung): ~ 150 lbs (axle and two wheels & tires) No brakes. Note that Virginia doesn't require trailer brakes for trailed weights under 3,000 lbs. Note 1: Chessie's chines fit between the fenders with just about 2" total clearance (total for each side). That spacing allowed me to rig padding on each side made of 3/4" pine with "bunk carpeting material" attached to the inboard sides. These "cushions" are wired (SS wire) to the trailer frame so they won't float away when down on the ramp. Note 2: Trailer weight as delivered: 500 lbs (includes basic trailer with winch, wheel-jack, and bunks). Add-ons: Guide-ons 20 lbs, three Rollers 30, Spare Tire 37, 3rd roller's support 14, CB Catcher 9, Running Boards 70 -- (sub-total 180) Here are two photos showing the City of Manassas official scale weights for the trailer & Chessie loaded with all cruising equipment including Coast Guard required safety items plus spare gas and drinking water: The first weight (1,720 lbs) was with only the trailer wheels on the scale (tongue hitched to tow vehicle). For the second weight (1,940 lbs), the tongue was unhitched and (wheel jack) dropped to the scale. Tongue weight 220 lbs. That's ~ 11% of the total load. With Chessie (loaded with all sailing and cruising equipment) PLUS the trailer weighing 1,940 lbs, LESS the trailer at 680 lbs, EQUALS approximately 1,260 lbs for Chessie (loaded ...) The tongue weight for earlier configurations (i.e., no running boards) was ~ 180 lbs. For my Tacoma pickup, I'd prefer the lower weight. I might move the trailer axle forward a few inches to reduce the tongue weight. Here's a photo of the trailer sans boat.
  5. Core Sound 20 Mk 3 -- #4 "Chessie" . .

    Here are some photos of Chessie on the water taken by a fellow boater from his slip at the Sweenen Point Marina on the Potomac's Mattawaoman Creek. Persons aboard are myself, my son Jim and daughter-in-law, Patricia and sailing friend John Zohlen. One really needs a chase boat and or telephoto lense to get good photos of boats on the water. Anyway, here are the pixs: Maybe I'll be able to get some more at the MASCF. I'm presently planning to arrive (with Chessie) on Thursday afternoon, and hopefully, participate in the sail-over to Wye Island.
  6. Core Sound 20 Mk 3 -- #4 "Chessie" . .

    Q:. Where to stow the Boat Hook? A:. Within easy reach from the cockpit. Here's what I did: The cutout is just over a "half-circle." With a little flexibility [in the wood]] and a little trimming with a file -- the plastic & rubber ends of the Boat Hook "snap" nicely in place. Secure but easily removed. I'd say it's pretty much out of the way and easily accessible. Don't have to open a hatch or go below. However, easily pinched in a parking lot. But it's not "high value" like a cell phone or GPS device.
  7. CS20.3 Launch & Recovery check lists & Float Plan . .

    Don, no checklist is perfect. Opportunities for #£%*? will still exist. But if I waste my limited energy on these "no-fun" tasks, I'll be "too-pooped" to enjoy much of the really fun part. One reason I like the overnight (or several-day) cruises is that once I'm under way -- I'm not concerned about recovery on the ramp, making the rig "road-ready," traffic, etc. in order to get home before dark. I've found that a "solo" day sail (for this 84 yr old) is very exhausting endeavor that can lead to big mistakes at the end of t.he day. That's also often true even with crew, because I've never had crew that I could trust to do the hard part. Now, if my home was on the water with a pier and Chessie kept high-and-dry on a lift -- boy, would I enjoy that! Add to checklists: Deploy and Stow Anchor. Add to Float Plan: Safty equipment: Fire Extinguiher
  8. CS20.3 Launch & Recovery check lists & Float Plan . .

    My present plans are to attend the MASCF with Chessie as an entrant. My Annie will probably be with me. If so we'll probably stay at a B & B. If I'm solo I'll bunk in the boat. BTW, did you notice that I forgot [on the check list] to deploy and stow the anchor? When trailering it shouldn't be in the roller like you would have it on the water.
  9. I have probably raised & lowered Chessie's mast a dozen or more times. Each time there's some improvement. Such as -- not so many trips in and out of the boat or to and from pickup to boat or reverse. By this time I've been able to ID the common missteps. So, I've made these attached "check lists." I don't actually "check off" each task as it's done, or refer to the list to determine the "next thing to do." Rather I review the list before starting the procedure -- and that's about all the guidance I need. So, maybe these could be of some use to others who mainly sail solo. I'm open to suggestions as to modifications or notice of omissions. Here are the ones for transition from ROAD to WATER . . The second page is on the back of the first. These are for the reverse -- WATER to the ROAD. "Trailer Sailors" often leave their trailering rig in the parking lot of the launch ramp. If overnight parking is allowed, usually the management of the Marina or public park require that a "Float Plan" be left with them and/or on the windshield of the tow vehicle. Seems to me a good practice anyway. I've always left another one with the wife at home. Here's the form that I made up for "Tattoo" and modified for "Chessie." If any member would like a copy in ".pdf" format -- just let me know by email and I'll reply with a "*.pdf" file attached.
  10. Core Sound 20 Mk 3 -- #4 "Chessie" . .

    Regarding placement of the mast retaing bolt. I'm not sure, but I think both Jay and Chick have sliding hatch covers for their forward cabin hatches. That allows the hatch opening to be much closer to the tabernacle and easier for the skipper to reach the bolt-end sticking out into the anchor well while holding the mast upright with one hand. I tried that (in the shop during construction) from the hatch opening further aft (I.e., with a forward edge at Blk #2) -- it was possible, but not easy. Also, with a bulkhead-mounted bolt two slots need to be cut into the mast -- a bit harder than one thru the wooded bulkhead. However, that said, if I had the hatch up close to the tabernacle, I would probably go for the bolt on the bulkhead.
  11. Core Sound 20 Mk 3 -- #4 "Chessie" . .

    Paul -- I think "assembly" is the right word. I'm sure the new SailTracks laminated to the mast had a lot to do with the mast not being damaged. Also, the flexibility of the entire assembly helped a lot, especially in avoiding damage to the SailTracks itself. Steve -- The aft coaming on the sliding hatch is 3/4" Mahagony. Not nearly as dense as oak or yellow pine. I don't think it [that piece] flexed much, but rather the whole companionway assembly and, of course, the mast/SailTracks. I think it would be interesting to calculate the rotational kenetic energy that had to be dissipated in order to suddenly stop the mast-assembly. A nice Physics 101 exam question.
  12. Carlita is off on a new adventure

    Good luck on your western trip. I flew out to that WoodenBoat show in several years ago. Wonderful time.
  13. Core Sound 20 Mk 3 -- #4 "Chessie" . .

    At the end of the cruise on the ramp's parking lot an accident occurred that resulted in NO SIGNIFICANT DAMAGE, but could have been very serious. THE MAINMAST FELL DOWN onto the unprotected sliding companionway hatch. There was no damage to the mast -- not even a scratch. And the sail track had no marks or dimples. The aft frame on the sliding hatch had a few slight dimples. But the wind vane was broken. Post accident investigation reveals less than careful securing of the mast prior to removing its retaining nut. I used the main topping lift to secure the mast upright. The business end was belayed to the port-side anchor cleat and the line (from.the mast-head) was reeved thru the anchor roller's top (or aft) roller and back to a cleat on the starboard side of the companionway rail. There it was made taut and belayed to the cleat. Then I went into the cabin and took the retainer nut off and started to open the forward hatch so that I could place a stool and two throw cushions on the opened hatch. The next step would have been to lower the mast onto the cushions. That never happened. As I started to open the hatch (an inch or so) there was a loud noise. The mast had fallen down of it own accord. Post accident investigation revealed that when I tightened the topping lift, the anchor roller had been jammed by the anchor chain so that the top roller was not pulled back to its aft position. Then, when some slight vibration occurred (opening the hatch ?) it became un-jammed and instantly the line had slack of aBout 8 to 10 inches -- enough for the mast to rotate past the top-dead-center for the retaining line. I think the lack of damage was do to the fact that most of the mass is close to the pivot and the energy at impact was transferred to a "whip-lash" of the top half of the mast. It would be kinda like trying to break a rubber baseball bat by hitting it against a smallish tree. Roller in aft position where it should have been, but wasn't. The sudden change of position created additional slack of perhaps 8 to 10 inches. Enough for the mast to rotate past the top-dead-center of the restraint. This shows the position of the roller where it should NOT have been. My failure to notice the difference was the root cause of this accident. Usually, tightening the line causes the top roller to rotate aft -- but this time it [apparently] was jammed by the anchor chain and I didn't notice [it]. This is where the mast hit the boat. Observe a couple of dimples made by the sail track. There must have been multiple hits from "bouncing." The wind vane. Maybe I can get a replacement part. I consider this a very low "tuition" for a valuable lesson. I'm truly embarrassed by this -- and I hope the members won't be too hard on me for the failure. Lesson learned: Be especially alert and cautious when at the end of the day you may be tired and/or anxious to get home. I knew better -- I just didn't see the obvious. Do any of you watch "Air Disasters"?
  14. Core Sound 20 Mk 3 -- #4 "Chessie" . .

    Chessie's first overnight cruise was a success. My plan was to launch from Leesylvania State Park and sail over and anchor on Mattawoman Creek (Smallwood State Park [MD]) -- and meet my sailing friends there the next morning. However, the day was very hot and humid (feels like 100+) and lots of wind (~ 10 to 12 knots + gusts). I opted to make the 3 mile crossing by motor. I was tied to a vacant floating dock when, just before dark, a park ranger told me that I couldn't stay there overnight -- I had to rent a slip at their Marina. The cost was $20, but included was access to shower facilities, etc.. A welcom convenience. The next morning we were sailing in a very nice northwest breeze of about 12 knots. The ballast tank filled nicely and with 600 lbs of crew, Chessie handled very nicely (no reefing). The sails filled nicely and the bends [in trhe] masts were beautiful fair curves. Each sail responded predictably to adjustment of their snotter and downhaul lines. After lunch the wind dropped to almost calm and motoring back to the Mattawoman Creek ramp we emptied the ballast tank. This was Chessie's first outing with any substantial wind. The other two were calm or < 3 or 4 knots. All aboard considered Chessie to be a very good sailboat! After dropping my friends off, I motored back to Leesylvania in a calm light rain pleased with the first overnight cruise. To get really good photos we need a "chase" boat. Here are a few photos: The running boards really help when launching / recovering solo. Notice the [new] plank between front and mid rollers. This allows one to walk up to the bow and clip on the winch hook without wading in knee-deep water. Chessie's slip at the Marina. After a shower and shave (a triple S) -- Chessie's galley was assembled and I prepared myself coffee with bacon & eggs. These Maryland watermen woke me at 4:30 am on their way out. Returning here at 7:50 am. Homeward bound. In the next posting I'll report an occurrence that might have caused considerable damage. Just note that one must take extra precautions towards days-end when physical and mental fatigue begin be be factors.
  15. Core Sound 20 Mk 3 -- #4 "Chessie" . .

    Chessie goes on her first "overnight" tomorrow morning. She will sail from Leesylvania State Park and anchor across the Potomac in Mattawomam Creek near the marina at Smallwood State Park. We will meet two sailing friends at the park on Wednesday am. Just in time for Chessie's cruise, I fabricated a couple of rails and screwed them to the companionway's carlins -- creating a convenient rack for Drop Board stowage. They can be stowed and retrieved from the cockpit. The space has little other use. The below photo shows the rails screwed to the carlins under the garage. These photos below show the Drop Boards slipped into the rack. Retainer "dogs" are not required because the rack is never used when trailering. And the carlins slope slightly down towards the bow when on the water.