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Wow, great running boat! Looks super responsive.
Would you consider sharing your plans?
Would you consider sharing your plans?
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"Look good doin' it"
See the fleet -
Thanks Jesse [emoji106]. I will share the plans, but I need to update the drawings still.Comment
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I'm fine tuning the setup and I gained some speed by adjusting the outboard leg with a little more positive angle and also set it a bit higher.
The T800 ran a little too loose, as can be seen in the short video. Top speed is 55mph with 443 prop, 6S and 1650kv 3674 motor.
Now, for everyone who wants to build a Cozy F1 T800, I share the plans for free. See attachments. Drawings are A1 size. It took me quite some work.. all I ask is not to use the design commercially.
If you build one, please show me the result [emoji3]
Cozy_F1_800_assembly_drawing.pdfCozy_F1_T800_mid-section_drawing2.pdfCozy_F1_T800_mid-section_drawing.pdfCozy_F1_800_sponsons_drawing.pdfT800_cowl_drawing.pdfComment
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Yesterday I ran 2 lipo's through the Cozy F1 T800. After 12 runs, the hull and outboard hold up well.
Top speed is 57mph so far, with 643 prop. I'm still fine-tuning the setup. I think with the prop set a little higher, it could go faster. I'm shooting for 62mph (100 km/h).
The hull is really stable, even when pushed a little harder. Here's a video of yesterday's run:
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Are you still using the mini tfl outboard for this boat? It looks like the mini leg. Would it be more beneficial to use the larger version for this boat?Comment
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This is a 33" hull with 6S power and it does use the TFL large leg.Comment
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Last weekend I took the T800 to the pond again. Running a 44mm 1.6 pitch prop I got to 60mph.
It was quite windy and the hull was running a bit too loose in these conditions. Carefully against the wind..
Here's a video of last weekend. I flipped the hull twice. The hull holds up quite well, but I destroyed 2 steering servos already.
Esc is a Turnigy Marine 120A. Holding up surprisingly well. At least for the fun boating I do [emoji3]
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I never tire or seeing the beautiful Cozy F1 T800 running Dirk!
do you have any ideas why you're going through servos so quickly? what make/model are you using?
now you have me thinking: i have a small catamaran hull that i have some "prop-ride" issues with (It's way overpowered and overpropped) but has me thinking about a gyroscopic tethered throttle (mounted 90? from normal) so when the hull pitches up the gyro could pull throttle... hmmmmm.Comment
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Thank you Autolex [emoji106]
The servos broke due to flipping the hull. The impact on the outboard of a bad landing, stripped the gears. Due to that, one servo motor burned down.
Both servos were metal geared, digital and with metal casing. First one was a HK servo, second one a Savox [emoji51]. I might be able to fix the Savox, if I can find the gears for reasonable price.
The gyro idea is really nice! If it works, it might be a quick return of investment [emoji28]. I will think about applying it.Comment
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Here's a slide show video of my 33" F1 tunnel construction. For your entertainment and maybe pick up some ideas for your next builds!
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It has been a while since I updated this topic. Last April a big catamaran collided into the T800 tunnel. It broke the cowl in half and the radio box at the front crushed.
I'm now repairing the damage and I made a video of it:
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I ran my 33" F1 T800 together with a mono boat. 2 different boats, with different power setups. But pretty well matched!
Arrow Shark mono:
Length 35"
6S 6200mAh
4074 2000kV
Flycolor 150A
43mm 1.6 prop
Weight ca 3500 gr.
Cozy F1 T800:
Length 33"
6S 5200mAh
3674 1650kV
Turnigy Marine 120A
43mm 1.6 prop
Weight ca 3100 gr.
The mono has more power, but the top speed yesterday was exactly the same: 54mph.
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