Hi Guys Cut out for the engine hatch and started on the making the hatch, also started cutting into frame 3 for where I am installing the motor and ESC. All the wires will go under the flooring. I have made the flooring in two pieces before skinning the sides. I did this on the Sea Hornet and made life a bit easier!!! Can-a-bus
Hi Jim I will be watching this built very close, as I have built one from original plans and also did the 25% as a future project. Because of the very limited engine and radio hatch, I design them larger, but, you are on the right path. I installed a 28mm brushless motor, 3S 2650mah Lipo battery with a 2 blade 32mm brass prop. I don't think the 25% bigger a one would require any more power as it a rocket. My hatches run down the deck planking lines, the original hatches are only for show. The engine starts from the front seat and finishes at the rear windscreen. I made up the cockpit floors etc. before I skinned the sides, a lot easier, also the floor is split over the keel with the seats one piece. Can-a-bus Canabus
Hi LHPEN Nice boat, does yours tail drag and bounce the bow up and down at full speed. All to ones I have seen on the net have this problem. The motor I am installing in my boat is about 10 times more powerful and rpm's is 12,210. I have use this motor in 3 boats and with no water cooling run OK . Speed is a bit over scale, but, I can lay off the throttle a bit. One boat I have changed this motor to a 3648-1450kv, straight bolt in(double the power and added 4000rpm). I have a few idea's to add into the build. One is the ugly rudder and an oiler for the rudder, also twin servo rods.
Hi Colin I use a solid alloy 5mm to 4mm coupling with one grub screw for the motor and one for the prop shaft. The silicon IC fuel tubing is my safety device stopping the prop shaft dropping in to the wet stuff. Also I notch the prop shaft for better grub screw grip. I could have had the coupling sitting over frame 3 as the dash centre sloops back, this would give more motor room or a longer motor. I think the 3639-1100kv at 800 watts on 3S will give the boat a good turn of speed.
Hi All Installing the drive line and motor mount with a simple alloy bracket. The motor mount alignment tool is my design and grub screws onto the prop shaft with mounting holes for 28 and 35mm motors. Can add more mounting holes if required.
Hi All I have started my redesigned runabout by increasing the length to 860mm. The motor and ESC will move to under the removal dash for better weight balance. Increase the engine hatch to get the Lipo battery, receiver and servo into. This will be hidden by the deck planking and the original hatch size will get it back to scale look. Brushless motor 3639-1100kv,3S battery, 60A car ESC and 37mm 3 blade prop.
Hi RN I made a simple L bracket from 2mm aluminium with a slot cut out for the keel and the required holes for the motor. Glued down with epoxy glue, is has work very well with the 1900kv 750 watt motor.
Hi RN From Hobbyking. Motor propdrive V2 2830- 1000kv 370watts 3.175mm shaft(9190000328-0)3S or 4S lipo battery. ESC 30A car(HK-30A)( XT60 connectors required), program card (HKPROG-CARD)can be used on the larger ones in the series. Lipo battery Turnigy 1000mah 3S 30C (T1000.3s.20) 89grams 75 x 33 x 19mm or a Turnigy 1500mah 3S 25C (T1500.3S.25) 113 grams 80 x 34 x 25 mm both have XT60 connectors. Prop about a 2 blade 30mm 1.4 pitch. Hope this helps.
I found two pics of my Sea Hornet engine mount. The second pic shows the cutout of the keel and the simple home made L bracket for the engine mount. The one in the Hobbyking drive line kit I did not like, but, the engine bolting to the motor is great. No top bearing, but, I have not had a problem with it. Added tap silicon grease on installation.
Dave M is right about lowering the prop angle and motors. My Aerokits Sea Hornet has only 10mm clearance to the top of the prop and I cutout part of the keel to lower the motor. I installed a 1900kv 28mm brushless motor, 30mm 1.4 pitch 2 blade brass prop with a 2650mah 3S behind the last frame with the rudder servo parallel to the transom. Added a small bit of lead under the front passenger seat to move the CG forward. Very quick little rocket at full throttle.
Hi Sonar I have used both in boats and with no watercooling. No problems with both types. The in runners are good for replacing brush motors as the 35mm brushless motor are the same bolt holes as the 540 brush motors. My first brushless was a Trackstar 17T 2400kv into an old rc car, 90watts to 550 watts, turn it into an insane rocket. The main brushless motors we use in the boating club are Hobbyking 3639 750 and 1100kv, 3648 1450kv and the outrunner D3548 1100kv with a 2 blade 40-50mm props. ESC's are the car 60 and 100 amp which handle 2S to 4S Lipo batteries.
Hi All We tested one today using PVC conduct covered with pool noodles which is a high density foam. We used hair elastic bands to hold the recovery boat to the device which also handles different width boats. The other end is faired out to help capture the other boat also if only a push is required. The forward sections can be un pinned for transport. The test today worked well on the unrequired to be rescued tug. The PVC tubes are sealed in the T sections and the removal sections forward of the joint pins.
Hi I have 3 working, 2 building, 2 restoration projects,1 maybe(I cutout the frames and keel) and plans of the Sea Queen, Sea Rover and would like to rebuild the Sea Hornet, but, 25% larger!! How many will never get built in the 64 dollar question!!!!!
Hi Robbob A serious cut of frame 2 and CF2 would be required. I cut out a section of frame 2, but, not CF2 at this point as I had no wheel house pics. I have download yours, thank you. Sorry about the pics, but, I thought as I live in Tasmania they would be the right way up for you living in Britain.(HA. HA!!). The later kits did not have the full plan with them, but, the original builder still had the plans and frame outlines which he traced out before starting the boat. I borrowed the plans, etc. and have a paper and PDF copy. I have the roof held down by double 10mm magnets, also the roof hatch is a working one. Canabus
Hi Robbob I bought one built without running gear two weeks ago, but with a new set of Decals and new life buoys which I will make the locating bits as the old one's where only glued on. Half the bulb lights do not work so I have removed the wheelhouse roof. The grab hooks(which I have made), the drive line brushes required replacing so I replaced the shaft as well. Installed a Hobbyking 3648-1450kv with a 2 blade 40mm prop. I do not think my boat will be as nice as yours, but, I have seen a few bits on yours I can make, like an opening wheelhouse hatch
Hi I use the Turnigy 45/60/100Amp car ESC's with the programming card. If you decrease the brake force, drag brake and initial brake to the minimum these ESC's work well. Decrease the reverse to 25%. Start to about 10%.
Hi I have a Aerokits Sea Commander with a 35mm brushless motor 3639-1100kv Turnigy 800 watts, 3S Lipo battery 5800mah 25C Turnigy, 60 Amp car ESC and using a 2 blade 40mm prop. Good turn of speed without going silly.
Hi Simon We use the Hobbyking 35mm brushless 3639-1100kv motor(no water cooling), 60 Amp car ESC (HK-60A SL) with the program card ,Zippy Compact 3300.3S.25C and prop 2 blade 40mm. I am using this setup in my Sea Commander, but, I use a 5800mah battery as it is a little bit bigger boat. I also have the little Sea Hornet with a 28mm brushless motor. I have the Sea Rover, Sea Hornet, Swordsman and Sea Queen plans on PDF. Canabus
Hi Rob Nice to see you into Aerokits boats. I have built a Sea Hornet on the original plans. Runs a brushless motor on 11.1 volt Lipo battery. Very fast little beast. I have a Sea Commander with a 3648/4 1100kv brushless motor on a 11.1volt Lipo battery. The old girl is faster on this setup than an IC motor with reverse and no starting problems.
Hi Andy The Plan and article of SUZIE-Q are available on E Bay(vintage-plans-905) from Canada. http://stores.ebay.com/Vintage-Plans-905/MODEL-BOAT-PLANS-/_... If you order two or more same postage price!!!!!! The Vivacity and Lorriane are available also!!!! I saved by rescanning a couple of Aerokits plans which are from the same time. Forty year plus paper is a bit problem.