I love this video, thought you might like to share it, taken at St Helens model boat club lake, which is Taylor Park, Prescot, St Helens, very early before anybody arrived, on a cold sunday morning!
Shortly after this video I changed the motor and prop, I never stop meddling! 😀
*Reposted - now with footage! Stephen*
{"text":"I love this video, thought you might like to share it, taken at St Helens model boat club lake, which is Taylor Park, Prescot, St Helens, very early before anybody arrived, on a cold sunday morning!\r\nShortly after this video I changed the motor and prop, I never stop meddling! \ud83d\ude00 \r\n*Reposted - now with footage! Stephen*","subject":"Veron Huntsman 28","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=z1R4XXeUWC8"}
I love this video, thought you might like to share it, taken at St Helens model boat club lake, which is Taylor Park, Prescot, St Helens, very early before anybody arrived, on a cold sunday morning!
Shortly after this video I changed the motor and prop, I never stop meddling! 😀 Reposted - now with footage! Stephen
HI There, I like what you've done with the boat it looks great.
The boat my father had was lost in time but when we sold the house I came across the plans, little bit moth eaten but decipherable.
I want to start and rebuild the boat within this this year from totally zero but don't seem to find many "parts" for it.
I Like originality in looks but love new technology built in as well.
Is it possible to ask for some pictures that I can use for reference when building please.
Regards
Kobus
HI There, I like what you've done with the boat it looks great.
The boat my father had was lost in time but when we sold the house I came across the plans, little bit moth eaten but decipherable.
I want to start and rebuild the boat within this this year from totally zero but don't seem to find many "parts" for it.
I Like originality in looks but love new technology built in as well.
Is it possible to ask for some pictures that I can use for reference when building please.
Regards
Kobus
Two Wavemasters, both refurbished ebay rescues, sailing at Crealy, near Exeter (one of the last times as the club can no longer use the water).
The first, rebuilt by Kalamunda, is brushless with NiMh cells and the second, having it's first sail since being rebuilt by Ian Gardner, has a Graupner 700 with 3s Lipo's (in parallel) on a 37.5mm X type prop- Electronize 30amp esc.
I think these are lovely looking old boats designed by Les Rowell of Aerokits fame, and obviously based on traditional cruisers from the Norfolk Broads- see Martham Boats, where you can still hire a wooden craft like these, although you'd definitely have the river inspector after you if you sailed up the Thurne at these speeds!
{"text":"Two Wavemasters, both refurbished ebay rescues, sailing at Crealy, near Exeter (one of the last times as the club can no longer use the water). \nThe first, rebuilt by Kalamunda, is brushless with NiMh cells and the second, having it's first sail since being rebuilt by Ian Gardner, has a Graupner 700 with 3s Lipo's (in parallel) on a 37.5mm X type prop- Electronize 30amp esc.\nI think these are lovely looking old boats designed by Les Rowell of Aerokits fame, and obviously based on traditional cruisers from the Norfolk Broads- see Martham Boats, where you can still hire a wooden craft like these, although you'd definitely have the river inspector after you if you sailed up the Thurne at these speeds!","subject":"Two refurbished Yeoman Wavemasters","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=ugGvtZq_kDo"}
Two Wavemasters, both refurbished ebay rescues, sailing at Crealy, near Exeter (one of the last times as the club can no longer use the water).
The first, rebuilt by Kalamunda, is brushless with NiMh cells and the second, having it's first sail since being rebuilt by Ian Gardner, has a Graupner 700 with 3s Lipo's (in parallel) on a 37.5mm X type prop- Electronize 30amp esc.
I think these are lovely looking old boats designed by Les Rowell of Aerokits fame, and obviously based on traditional cruisers from the Norfolk Broads- see Martham Boats, where you can still hire a wooden craft like these, although you'd definitely have the river inspector after you if you sailed up the Thurne at these speeds!
HI Graham,
Glad you liked the video. They are smashing boats aren't they? I really fancy a new IP Engineering one but have too many other projects on the go to make it a sane decision!
I have to say my WM is the best running of my faster boats, which include a Lesro Sportsman and a Rapier. She seems to hug the water in turns rather than bounce around, so a great design I think. I'd be interested to hear how you arranged you gearing on your WM. Did you make it up or but a ready made unit?
Ian
HI Graham,
Glad you liked the video. They are smashing boats aren't they? I really fancy a new IP Engineering one but have too many other projects on the go to make it a sane decision!
I have to say my WM is the best running of my faster boats, which include a Lesro Sportsman and a Rapier. She seems to hug the water in turns rather than bounce around, so a great design I think. I'd be interested to hear how you arranged you gearing on your WM. Did you make it up or but a ready made unit?
Ian
HI I bought them on Ebay, from Hongkong, they were about £9 plus some small amount of postage they have a brass motor gear, and an aluminium gear for the propshaft I use the system on three boats the Wavemaster a Sea Commander and a Fire Boat. On the water with 7.2 volts but will also run on 9.6 volts and 11.1 volts 3 cell lipo's. I will try and get a photo of the motor and gearbox. Regards Graham
HI I bought them on Ebay, from Hongkong, they were about £9 plus some small amount of postage they have a brass motor gear, and an aluminium gear for the propshaft I use the system on three boats the Wavemaster a Sea Commander and a Fire Boat. On the water with 7.2 volts but will also run on 9.6 volts and 11.1 volts 3 cell lipo's. I will try and get a photo of the motor and gearbox. Regards Graham
Not Strictly Aerokits!!! Bought this and a Sea Breeze at the Warwick Show. Sea Breeze is in the cupboard for Xmas. Sea Nymph is Ivory and Brunswick Green. it has a JP 400 motor with an Mtroniks 15 amp esc powered by a 7.2v nicad. Currently it has a 35mm S prop. Haven't had a chance to try it out on the water yet. Maybe this weekend. its the first wooden boat I've ever built so am quite pleased with the outcome. Looking forward to the Sea Breeze as that's going to be my first brushless model.
{"text":"Not Strictly Aerokits!!! Bought this and a Sea Breeze at the Warwick Show. Sea Breeze is in the cupboard for Xmas. Sea Nymph is Ivory and Brunswick Green. it has a JP 400 motor with an Mtroniks 15 amp esc powered by a 7.2v nicad. Currently it has a 35mm S prop. Haven't had a chance to try it out on the water yet. Maybe this weekend. its the first wooden boat I've ever built so am quite pleased with the outcome. Looking forward to the Sea Breeze as that's going to be my first brushless model.","subject":"Sea Nymph","media":[{"id":"1354623275","name":"1354623275.jpg","caption":"","url":"https://hobby.land/media/1354623275/l","thumbUrl":"https://hobby.land/media/1354623275/s","isImage":true,"ext":"jpg"},{"id":"1354623267","name":"1354623267.jpg","caption":"","url":"https://hobby.land/media/1354623267/l","thumbUrl":"https://hobby.land/media/1354623267/s","isImage":true,"ext":"jpg"},{"id":"1354623252","name":"1354623252.jpg","caption":"","url":"https://hobby.land/media/1354623252/l","thumbUrl":"https://hobby.land/media/1354623252/s","isImage":true,"ext":"jpg"}],"youtubeUrl":""}
Not Strictly Aerokits!!! Bought this and a Sea Breeze at the Warwick Show. Sea Breeze is in the cupboard for Xmas. Sea Nymph is Ivory and Brunswick Green. it has a JP 400 motor with an Mtroniks 15 amp esc powered by a 7.2v nicad. Currently it has a 35mm S prop. Haven't had a chance to try it out on the water yet. Maybe this weekend. its the first wooden boat I've ever built so am quite pleased with the outcome. Looking forward to the Sea Breeze as that's going to be my first brushless model.
I finally got round to trying the Rapier with the lipos I bought recently. My good friend 'Kalamunda' was on hand to drive whilst I took the video. We noticed a marked Improvement in performance- a much greater 'urgency' with the lipos delivering what the motors asked. Short of going up a prop size I think this will be about it with this boat. Thanks to the chaps on here who have encouraged me into Lipos and given help with various matters- not sure what all the worry was now- famous last words!
This will be one of our last days at Crealy in Exeter as the management have decided to terminate our use of the water- so we will be looking for alternatives from January.
{"text":"I finally got round to trying the Rapier with the lipos I bought recently. My good friend 'Kalamunda' was on hand to drive whilst I took the video. We noticed a marked Improvement in performance- a much greater 'urgency' with the lipos delivering what the motors asked. Short of going up a prop size I think this will be about it with this boat. Thanks to the chaps on here who have encouraged me into Lipos and given help with various matters- not sure what all the worry was now- famous last words!\nThis will be one of our last days at Crealy in Exeter as the management have decided to terminate our use of the water- so we will be looking for alternatives from January.","subject":"Lesro Rapier- with Lipos","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=qAtI9HMzNaU"}
I finally got round to trying the Rapier with the lipos I bought recently. My good friend 'Kalamunda' was on hand to drive whilst I took the video. We noticed a marked Improvement in performance- a much greater 'urgency' with the lipos delivering what the motors asked. Short of going up a prop size I think this will be about it with this boat. Thanks to the chaps on here who have encouraged me into Lipos and given help with various matters- not sure what all the worry was now- famous last words!
This will be one of our last days at Crealy in Exeter as the management have decided to terminate our use of the water- so we will be looking for alternatives from January.
I use a little "plug in" voltage alarm on my lipo's. it simply plugs in to the balance charge plug connector. so give you an initial volt test,usually with a few bleeps and a set of green lights, then as the batteries drain, the led's turn red and an alert buzzer goes of as they approach low volt limit, which is set on these alarms at 3.2v, so no damage done to the batteries.
Its a quick search on ebay, loads of sellers, cost around £2.50 each.
very useful bit of kit poolside as you can check all your lipo batteries, even after being used and left to stand, the batteries do recover a bit and possibly ready again for a further shortened run time too.
Happy sailing with your boat, the setup's brill !
I use a little "plug in" voltage alarm on my lipo's. it simply plugs in to the balance charge plug connector. so give you an initial volt test,usually with a few bleeps and a set of green lights, then as the batteries drain, the led's turn red and an alert buzzer goes of as they approach low volt limit, which is set on these alarms at 3.2v, so no damage done to the batteries.
Its a quick search on ebay, loads of sellers, cost around £2.50 each.
very useful bit of kit poolside as you can check all your lipo batteries, even after being used and left to stand, the batteries do recover a bit and possibly ready again for a further shortened run time too.
Happy sailing with your boat, the setup's brill !
Those are the alarms I intend to use but they seem to be taking a while to come. They are so cheap I intend to install them in the boat with velcro and extension leads on the balance connectors. The lipos certainly give a weight saving too.
Those are the alarms I intend to use but they seem to be taking a while to come. They are so cheap I intend to install them in the boat with velcro and extension leads on the balance connectors. The lipos certainly give a weight saving too.
A freind from a photographic club has kindly forwarded these pics to me. Well, you know what its like when you are at the controls, there is never anyone around to take any decent pics, but think these are superb, especially when considering it was going almost flat out at the time, and plenty of "air" under the forward hull, right up the tha last "step" in the hull at the stern.
11.1v lipo, 3000kv motor and standard 3 blade 32mm plastic prop.
{"text":"A freind from a photographic club has kindly forwarded these pics to me. Well, you know what its like when you are at the controls, there is never anyone around to take any decent pics, but think these are superb, especially when considering it was going almost flat out at the time, and plenty of \"air\" under the forward hull, right up the tha last \"step\" in the hull at the stern.\n\n11.1v lipo, 3000kv motor and standard 3 blade 32mm plastic prop.","subject":"Hobby King F1 Tunnel","media":[{"id":"1351715511","name":"1351715511.jpg","caption":"","url":"https://hobby.land/media/1351715511/l","thumbUrl":"https://hobby.land/media/1351715511/s","isImage":true,"ext":"jpg"},{"id":"1351715462","name":"1351715462.jpg","caption":"","url":"https://hobby.land/media/1351715462/l","thumbUrl":"https://hobby.land/media/1351715462/s","isImage":true,"ext":"jpg"}],"youtubeUrl":""}
A freind from a photographic club has kindly forwarded these pics to me. Well, you know what its like when you are at the controls, there is never anyone around to take any decent pics, but think these are superb, especially when considering it was going almost flat out at the time, and plenty of "air" under the forward hull, right up the tha last "step" in the hull at the stern.
11.1v lipo, 3000kv motor and standard 3 blade 32mm plastic prop.
I found after some "trial" that the ORIGINAL plastic prop suited the motor better.
I did try a specialist one from prop shop and it actually ran slower, albeit same diameter, but with bigger pitch.
Sometimes you cant beat what the factory supply!
I found after some "trial" that the ORIGINAL plastic prop suited the motor better.
I did try a specialist one from prop shop and it actually ran slower, albeit same diameter, but with bigger pitch.
Sometimes you cant beat what the factory supply!
Ok, thanks for that info. I have hot shot tunnel hull and a 47 insane v-hull. I'm big on the fuel driven, nitro or gas. I've been exsperamenting with perpellor size and I've come to the conclusion that I need to get a GPS or other type of tracking device to determine if their is some tpye significant change happening with the performance. I'm just starting this hobby , so is there any recommend reading you would suggest or general knowledge site I could look on for beginners. Thanks in advance for any more help you can provide.
Ok, thanks for that info. I have hot shot tunnel hull and a 47 insane v-hull. I'm big on the fuel driven, nitro or gas. I've been exsperamenting with perpellor size and I've come to the conclusion that I need to get a GPS or other type of tracking device to determine if their is some tpye significant change happening with the performance. I'm just starting this hobby , so is there any recommend reading you would suggest or general knowledge site I could look on for beginners. Thanks in advance for any more help you can provide.
1965 U.S. Lindberg Plastic Special Edition John F Kennedy P T 109 Boat. The P T 109 boat was mainly employed around the islands surrounding the Philippines, hence the reason why the boat was painted to match the background colours of these islands. Bought in a part built state and took me, with help and advice from other model boat guys, about 12 months to get it up and running. Powered by twin motors, shafts & props, with a single 8 cell 9.6 volt battery.
{"text":"1965 U.S. Lindberg Plastic Special Edition John F Kennedy P T 109 Boat. The P T 109 boat was mainly employed around the islands surrounding the Philippines, hence the reason why the boat was painted to match the background colours of these islands. Bought in a part built state and took me, with help and advice from other model boat guys, about 12 months to get it up and running. Powered by twin motors, shafts & props, with a single 8 cell 9.6 volt battery.","subject":"PT109","media":[{"id":"1350844740","name":"1350844740.jpg","caption":"","url":"https://hobby.land/media/1350844740/l","thumbUrl":"https://hobby.land/media/1350844740/s","isImage":true,"ext":"jpg"},{"id":"1350844677","name":"1350844677.jpg","caption":"","url":"https://hobby.land/media/1350844677/l","thumbUrl":"https://hobby.land/media/1350844677/s","isImage":true,"ext":"jpg"},{"id":"1350844627","name":"1350844627.jpg","caption":"","url":"https://hobby.land/media/1350844627/l","thumbUrl":"https://hobby.land/media/1350844627/s","isImage":true,"ext":"jpg"}],"youtubeUrl":""}
1965 U.S. Lindberg Plastic Special Edition John F Kennedy P T 109 Boat. The P T 109 boat was mainly employed around the islands surrounding the Philippines, hence the reason why the boat was painted to match the background colours of these islands. Bought in a part built state and took me, with help and advice from other model boat guys, about 12 months to get it up and running. Powered by twin motors, shafts & props, with a single 8 cell 9.6 volt battery.
Hello:
I've got a scale model of the pt-109, lindberg and want to build it as soon as possible.
Thank you for these photos... very well achieved the warlike atmosphere of the period.
Soon I'll post pictures of the work.
Hello:
I've got a scale model of the pt-109, lindberg and want to build it as soon as possible.
Thank you for these photos... very well achieved the warlike atmosphere of the period.
Soon I'll post pictures of the work.
KIT BUILT PLANK ON FRAME, SINGLE MOTOR DUAL PROP, SAIL ANYWHERE WE CAN!
{"text":"KIT BUILT PLANK ON FRAME, SINGLE MOTOR DUAL PROP, SAIL ANYWHERE WE CAN!","subject":"mantua bruma ketch","media":[{"id":"1349777275","name":"1349777275.jpg","caption":"","url":"https://hobby.land/media/1349777275/l","thumbUrl":"https://hobby.land/media/1349777275/s","isImage":true,"ext":"jpg"}],"youtubeUrl":""}
Hope this is not considered inappropiate to post this video here as the majority of videos are about baots on the water (hope mine will make it one day) - but would like DaveM (Fleet Admiral) to have a look see.
{"text":"Hope this is not considered inappropiate to post this video here as the majority of videos are about baots on the water (hope mine will make it one day) - but would like DaveM (Fleet Admiral) to have a look see.","subject":"Noisy Motor","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=2Y0Zd5V8T-s"}
Hope this is not considered inappropiate to post this video here as the majority of videos are about baots on the water (hope mine will make it one day) - but would like DaveM (Fleet Admiral) to have a look see.
Just glad it worked out- always a bit worrying recommending possible destruction! I've got another ebay rescue- Maycraft Mercury- which I shall have to tackle this job on.
Ian
Just glad it worked out- always a bit worrying recommending possible destruction! I've got another ebay rescue- Maycraft Mercury- which I shall have to tackle this job on.
Ian
HI there guys, I am just in process of renewing prop shaft in my 34" fire boat, have for years run it with Ic engine, as not permitted on most sailing areas now Im converting to electric, I have removed the shaft and tube (badly worn from Ic engine use) all I did was firm grip with pliers on the tube twist to dislodge glue and filler then knocked out of the hull from inside.
my intention is to use a speed 600bb for power any comments on power set up would be helpful, my boat weighs in at 2268grams.
Chiffs
HI there guys, I am just in process of renewing prop shaft in my 34" fire boat, have for years run it with Ic engine, as not permitted on most sailing areas now Im converting to electric, I have removed the shaft and tube (badly worn from Ic engine use) all I did was firm grip with pliers on the tube twist to dislodge glue and filler then knocked out of the hull from inside.
my intention is to use a speed 600bb for power any comments on power set up would be helpful, my boat weighs in at 2268grams.
Chiffs
Believed to be scratch built, evidence of old 1 gallon REDEX oil container forming main deck, bits of Mecano used as stiffening and support.
It has a Basset Lowke model 1461/u (motor, stern tube, prop shaft and prop) Set.This dates from the mid 1930's and would have cost 7/- Shillings for those old enough to remember, that would have been abut a day and a half's wages. The photo's show what the motor looked like as it came out and then after cleaning and testing, and yes it runs very smoothly in forward and reverse, from 3 volts up to 12 volts, seems to be quite good at 6, so will probably use when rebuild complete.
As you will see from photo's there is a lot of restoration to do before sailing again.
Now you've stopped laughing, can you identify the type of ship it's meant to be, I thought a Coaster.
{"text":"Believed to be scratch built, evidence of old 1 gallon REDEX oil container forming main deck, bits of Mecano used as stiffening and support.\nIt has a Basset Lowke model 1461/u (motor, stern tube, prop shaft and prop) Set.This dates from the mid 1930's and would have cost 7/- Shillings for those old enough to remember, that would have been abut a day and a half's wages. The photo's show what the motor looked like as it came out and then after cleaning and testing, and yes it runs very smoothly in forward and reverse, from 3 volts up to 12 volts, seems to be quite good at 6, so will probably use when rebuild complete.\nAs you will see from photo's there is a lot of restoration to do before sailing again.\nNow you've stopped laughing, can you identify the type of ship it's meant to be, I thought a Coaster.","subject":"Rust Bucket","media":[{"id":"1348771243","name":"1348771243.jpg","caption":"","url":"https://hobby.land/media/1348771243/l","thumbUrl":"https://hobby.land/media/1348771243/s","isImage":true,"ext":"jpg"},{"id":"1348837764","name":"1348837764.jpg","caption":"","url":"https://hobby.land/media/1348837764/l","thumbUrl":"https://hobby.land/media/1348837764/s","isImage":true,"ext":"jpg"},{"id":"1348837814","name":"1348837814.jpg","caption":"","url":"https://hobby.land/media/1348837814/l","thumbUrl":"https://hobby.land/media/1348837814/s","isImage":true,"ext":"jpg"},{"id":"1348837866","name":"1348837866.jpg","caption":"","url":"https://hobby.land/media/1348837866/l","thumbUrl":"https://hobby.land/media/1348837866/s","isImage":true,"ext":"jpg"}],"youtubeUrl":""}
Believed to be scratch built, evidence of old 1 gallon REDEX oil container forming main deck, bits of Mecano used as stiffening and support.
It has a Basset Lowke model 1461/u (motor, stern tube, prop shaft and prop) Set.This dates from the mid 1930's and would have cost 7/- Shillings for those old enough to remember, that would have been abut a day and a half's wages. The photo's show what the motor looked like as it came out and then after cleaning and testing, and yes it runs very smoothly in forward and reverse, from 3 volts up to 12 volts, seems to be quite good at 6, so will probably use when rebuild complete.
As you will see from photo's there is a lot of restoration to do before sailing again.
Now you've stopped laughing, can you identify the type of ship it's meant to be, I thought a Coaster.
1959 kit built, restored two years ago,removed the ganette 15cc 4 stroke and replaced it with a bruhless motor which is a EMP 5065 410kv with a 100amp ESC and 4cell 5000 lipo turning a x70 two bladed prop, runs times up to 20 minutes, and a very good but over scale speed, will take a video of her next time a I take her out.
{"text":"1959 kit built, restored two years ago,removed the ganette 15cc 4 stroke and replaced it with a bruhless motor which is a EMP 5065 410kv with a 100amp ESC and 4cell 5000 lipo turning a x70 two bladed prop, runs times up to 20 minutes, and a very good but over scale speed, will take a video of her next time a I take her out.","subject":"Sea Queen","media":[{"id":"1348319584","name":"1348319584.jpg","caption":"","url":"https://hobby.land/media/1348319584/l","thumbUrl":"https://hobby.land/media/1348319584/s","isImage":true,"ext":"jpg"},{"id":"1348319804","name":"1348319804.jpg","caption":"","url":"https://hobby.land/media/1348319804/l","thumbUrl":"https://hobby.land/media/1348319804/s","isImage":true,"ext":"jpg"},{"id":"1348319868","name":"1348319868.jpg","caption":"","url":"https://hobby.land/media/1348319868/l","thumbUrl":"https://hobby.land/media/1348319868/s","isImage":true,"ext":"jpg"},{"id":"1348319975","name":"1348319975.jpg","caption":"","url":"https://hobby.land/media/1348319975/l","thumbUrl":"https://hobby.land/media/1348319975/s","isImage":true,"ext":"jpg"}],"youtubeUrl":""}
1959 kit built, restored two years ago,removed the ganette 15cc 4 stroke and replaced it with a bruhless motor which is a EMP 5065 410kv with a 100amp ESC and 4cell 5000 lipo turning a x70 two bladed prop, runs times up to 20 minutes, and a very good but over scale speed, will take a video of her next time a I take her out.
Second decent run with this boat- rather sedate I think. At the moment it's drawing 33amps (stationary, 16.5 amps each motor) with both motors running from a 12v Nimh pack. I want to get each motor running off a separate LiPo and then I could probably increase the prop size- still well within the esc rating and the motors are very cool after a run at the moment. it seems a bit back heavy and I'd like to get it running flatter- so will try moving the batteries more amidships.
{"text":"Second decent run with this boat- rather sedate I think. At the moment it's drawing 33amps (stationary, 16.5 amps each motor) with both motors running from a 12v Nimh pack. I want to get each motor running off a separate LiPo and then I could probably increase the prop size- still well within the esc rating and the motors are very cool after a run at the moment. it seems a bit back heavy and I'd like to get it running flatter- so will try moving the batteries more amidships.","subject":"Lesro Rapier","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=46VWDkN_akM"}
Second decent run with this boat- rather sedate I think. At the moment it's drawing 33amps (stationary, 16.5 amps each motor) with both motors running from a 12v Nimh pack. I want to get each motor running off a separate LiPo and then I could probably increase the prop size- still well within the esc rating and the motors are very cool after a run at the moment. it seems a bit back heavy and I'd like to get it running flatter- so will try moving the batteries more amidships.
HI Ian
See you are making good use of the wattmeter 😀
Like the video and agree the balance could benefit with a bit more weight amidships.
Listening to the video sound suggests your motors are not developing full power so I suspect the NiMh's are not capable of delivering the amps required.
You could try smaller props with the NiMh's to see if the performance Improves, could be your motors are working just below the optimum.
HI Ian
See you are making good use of the wattmeter 😀
Like the video and agree the balance could benefit with a bit more weight amidships.
Listening to the video sound suggests your motors are not developing full power so I suspect the NiMh's are not capable of delivering the amps required.
You could try smaller props with the NiMh's to see if the performance Improves, could be your motors are working just below the optimum.
Dave, I found that the Nimh batteries were dropping off to around 9v at full power when measured with the wattmeter and this is why I want to go for Lipos, one on each motor. At the moment I'm taking everything from one pack and I think this is the limiting factor.
When I get my Lipos I will stick them in the middle and try larger props, probably 40mmS types to begin with, having measured what's going on with the wattmeter first. it may be that the existing props will do better if the batteries are delivering up what the motors want. You're right, there is still plenty of headroom with this setup.
Just got to rake up the cash for two largish capacity Lipos!
The wattmeter is a splendid purchase- I'd say essential for this type of thing.
Anyway, glad you liked the video- she still looks quite good toodling around at that speed.
All the best...Ian
Dave, I found that the Nimh batteries were dropping off to around 9v at full power when measured with the wattmeter and this is why I want to go for Lipos, one on each motor. At the moment I'm taking everything from one pack and I think this is the limiting factor.
When I get my Lipos I will stick them in the middle and try larger props, probably 40mmS types to begin with, having measured what's going on with the wattmeter first. it may be that the existing props will do better if the batteries are delivering up what the motors want. You're right, there is still plenty of headroom with this setup.
Just got to rake up the cash for two largish capacity Lipos!
The wattmeter is a splendid purchase- I'd say essential for this type of thing.
Anyway, glad you liked the video- she still looks quite good toodling around at that speed.
All the best...Ian
First trial run after purchase off good old Ebay. Running 26kv motor and 11.1v lipo. its a little bit "skippy", but after returning to shore, it looks like it may simply be the height of the prop shaft, so now adjusted, ready for a second trial shortly....more to follow.
{"text":"First trial run after purchase off good old Ebay. Running 26kv motor and 11.1v lipo. its a little bit \"skippy\", but after returning to shore, it looks like it may simply be the height of the prop shaft, so now adjusted, ready for a second trial shortly....more to follow.","subject":"F1 Tunnel - Hobby King","media":[],"youtubeUrl":"https://www.youtube.com/watch?v=BXsJtpDk4dQ"}
First trial run after purchase off good old Ebay. Running 26kv motor and 11.1v lipo. its a little bit "skippy", but after returning to shore, it looks like it may simply be the height of the prop shaft, so now adjusted, ready for a second trial shortly....more to follow.
They can be very stable and get a higher level of speed over a mono hull. BUT ...... yep, there always has to be one............ I find that a mono hull can sail in any type of water condition, twin hulls, or tunnel hulls are better suited for calmer water. the main risk is for the hull to flip over backwards if thits the crest of a wave and the wind gets under the bows, the centre section then acts as a sail , wind catches it and lifts the hull nose up........... and over !
If you get the chance to sail one.......try it, they are good fun to sail, take a bit of concentration to get the best speed out of them, especially on turns.
Its like any boat, there are good things and bad in all of them to a degree.
They can be very stable and get a higher level of speed over a mono hull. BUT ...... yep, there always has to be one............ I find that a mono hull can sail in any type of water condition, twin hulls, or tunnel hulls are better suited for calmer water. the main risk is for the hull to flip over backwards if thits the crest of a wave and the wind gets under the bows, the centre section then acts as a sail , wind catches it and lifts the hull nose up........... and over !
If you get the chance to sail one.......try it, they are good fun to sail, take a bit of concentration to get the best speed out of them, especially on turns.
Its like any boat, there are good things and bad in all of them to a degree.
The boat my father had was lost in time but when we sold the house I came across the plans, little bit moth eaten but decipherable.
I want to start and rebuild the boat within this this year from totally zero but don't seem to find many "parts" for it.
I Like originality in looks but love new technology built in as well.
Is it possible to ask for some pictures that I can use for reference when building please.
Regards
Kobus