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TAGood827
- Posts: 4
- Joined: Thu Sep 13, 2018 5:25 pm
- Location: Royersford, Pennsylvania, USA
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by TAGood827 » Tue Sep 25, 2018 1:06 am
DisneyDumbo wrote: ↑Sun Sep 23, 2018 4:14 pm
Hi Tim,
Yes, they are still available. I will check on P & P and get back to you. Meantime I'll email some details to you if you let me have your details.
I'll ask for PM privileges as I'm a noob and can't do that as yet and I'd rather not post my email on the board. If possible, you could PM me and that may allow me to respond directly.
Thanks,
Tim
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Mike Bull
- Posts: 4608
- Joined: Mon Dec 01, 2008 1:57 pm
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by Mike Bull » Tue Sep 25, 2018 8:51 am
PM privileges become active once you've posted three times.
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TAGood827
- Posts: 4
- Joined: Thu Sep 13, 2018 5:25 pm
- Location: Royersford, Pennsylvania, USA
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by TAGood827 » Wed Sep 26, 2018 3:31 pm
Thank you, Mike!
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TAGood827
- Posts: 4
- Joined: Thu Sep 13, 2018 5:25 pm
- Location: Royersford, Pennsylvania, USA
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by TAGood827 » Tue Oct 02, 2018 12:43 am
Hello Mike,
I've tried to send 3 PMs to Fred but they all show as still being in my Outbox. They haven't moved to the Sent folder. I am doing something wrong? I did get a successfully sent message notice with each message but I don't think they've made it to him as I haven't yet heard back from him.
Thanks,
Tim
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Mike Bull
- Posts: 4608
- Joined: Mon Dec 01, 2008 1:57 pm
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by Mike Bull » Tue Oct 02, 2018 7:27 am
Messages sit in the Outbox until they are read by the recipient.
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JfromJAGs
- Posts: 23
- Joined: Thu Nov 03, 2011 6:16 pm
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by JfromJAGs » Mon Oct 08, 2018 5:39 pm
As already DC used to know, records sometimes don't come easy and especially not as planned.
Last weekend in September we had as record event for RC boats in Munich. I tried to push the current RC record (using 8 LiPo cells in an outrigger design) from 314km/h = 195mph to over 200mph. On the first run the new prop threw all 3 blades - I had grinded it too thin. Second day was too windy. Third day I did one pass at 331.7km/h = 206mph, but couldn't back it up with a return pass. The boat submerged on start up and came back upside down. Soon after the wind picked up again, so I couldn't do more runs.
We did set some records on other classes though, e.g. Arne raised the 6 cells outrigger record to over 300km/h = 187mph and Gunnar in 8 cell catamaran to over 230km/h = 143mph. Powerwise and also concerning stability Arne's and my boat could probably go faster - but both are on the edge concerning lift: the boats fly too high, so we are loosing thrust from the prop. So, back to the drawing board...
BR,
Joerg
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thunderer
- Posts: 117
- Joined: Fri Jun 19, 2009 12:18 am
- Location: London UK
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Contact:
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by thunderer » Tue Oct 09, 2018 7:11 pm
How about an inverted Aicraft-style wing at the front that is adjustable, It may help to keep the nose down a tad?
To what extent it will work, I do not know....
Just cos my username is Thunderer, doesn't necessarily mean I SHOUT !!
"A vehicle is designed to be used, restored or otherwise" A personal response on the question "you have just restored it, why use it?"
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JfromJAGs
- Posts: 23
- Joined: Thu Nov 03, 2011 6:16 pm
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by JfromJAGs » Tue Oct 09, 2018 11:27 pm
The whole boat is a wing and works in ground effect as a self stabilizing system - which we want to keep. We are working on some small changes in several points to reduce the general lift gently. Adding (inverted) wings or spoilers tend to disturb the stability of the system, e.g. an inverted wing in front will produce downforce as long as the boat flies parallel to the surface. But as soon as there is some angle in the hull, e.g. from running over waves, then the downforce will reduce or even change to lift -> dangerous. We will most likely install some (rather small) deflector plates behind the front boom - this less to produce direct downforce, but rather to direct more air over the center section than having flowing underneath.
Joerg
