Topic: Spearfish requirements... (Read 38410 times)

triumphjon · « **Reply #75 on:** April 17, 2012, 10:42:52 pm »

hows the progress , ?

U-33 · « **Reply #76 on:** April 18, 2012, 07:56:24 am »

Progress ok, Jon...

Just a couple more bits of wiring to do, then the internal layout is about done, I think.

Then it's onwards with cutting the access hole out of the floor...

Rich

U-33 · « **Reply #77 on:** April 18, 2012, 12:33:43 pm »

And just in case, I've fitted a (brushless) cooling fan...you never know.

triumphjon · « **Reply #78 on:** April 18, 2012, 04:16:06 pm »

everything looks along way forward on your model ? ive got my battery packs almost at the transom which seems to balence them about right

U-33 · « **Reply #79 on:** April 18, 2012, 05:27:53 pm »

Yea, tell me about it Jon...I've also discovered that prop tube and shaft is offset as well. I guess when I glued it into position it must have moved somehow, so now I have to remove the tube and refit it. Which in turn means removing the radio tray to enable me to gain access to it....which in turn means an awful lot of bad language.

Excuse me whilst I go and sulk in the corner....

Rich

triumphjon · « **Reply #80 on:** April 18, 2012, 07:30:32 pm »

think weve all been there at some time , i now tack the tube in with some cyno before setting both the shaft and rudder tube in with glass fibre paste ( isopon p40 or similar ) , with regards to the receiver , ive positioned mine under the cabin roof ( im running on 2.4 ghz ) so its as far from any possible water ingress as possible !

U-33 · « **Reply #81 on:** April 18, 2012, 08:01:50 pm »

Same as that Jon...a drop of cyano just to hold the shaft in place...check it again, and then it's in with the P40 or epoxy resin, but I guess it must have moved this time. Oh gosh and bother it, I said....

Oh well...it'll give me something to do tomorrow..

triumphjon · « **Reply #82 on:** April 18, 2012, 08:35:42 pm »

think id have used stronger words than gosh & bother ! the weather isnt looking too good for boating so quite a good time to be building , currently spending the mornings in a mates workshop welding 2mm thick stainless steel trays for a member of the local model display team , with the afternoons spent either on my own models or the aged triumph . however i have this evening managed to try my own huntsman 31 with the 11.1 volt lipo , needs improving !

U-33 · « **Reply #83 on:** April 18, 2012, 08:40:59 pm »

It might have been damn and blast it....

I'm thinking whilst everything is ripped out tomorrow to change the motor to a brushless...I can always go sailing with it on the big club lake, or even out on the sea.

I really should get on with the decorating....

triumphjon · « **Reply #84 on:** April 18, 2012, 08:58:14 pm »

changing to brushless sounds like a good idea , you can always throttle down when on the small lake ? think brushless is the way my 31 is going to go next .

U-33 · « **Reply #85 on:** April 18, 2012, 09:10:20 pm »

That's what I thought, back it off a bit on the small lake.

So, whilst nobody else is looking, what brushless do you reckon, Jon? Using the existing cell packs....I can't afford lipos as well.

triumphjon · « **Reply #86 on:** April 18, 2012, 09:25:11 pm »

my spear is using a pair of eflight park 450 brushless motors , with a fusion tornado fs-tbl30hv esc on each motor ( available from www.LogicRC.com ) each being powered by its own 11.1 volt lipo . im not sure of the cost of either the motors or escs as they started life in a very large vosper patrol boat ( sold without motors /esc due to its weight ) . dont know what to recomend for a single motor , it might be a good idea to look at red181s thread for last year as he is using a single brushless in his 42 " huntsman 28 .jon

U-33 · « **Reply #87 on:** April 18, 2012, 09:49:41 pm »

That build log is frightening...not only the expense!

I do have a Spirit 600 motor...that should be pretty quick on 12volts.

triumphjon · « **Reply #88 on:** April 18, 2012, 10:32:37 pm »

i know it gets expensive , hence using somebody elses knowledge as to what works can save a few pounds . is your spirit 600 a brushed motor ?

U-33 · « **Reply #89 on:** April 19, 2012, 07:31:19 am »

Well, she's gutted now, just an empty shell again.

You can see the motor in the pic below with a 380 for size comparision...it's a pretty potent motor I'm told, I've never used it yet. Probably a very amp hungry motor...

U-33 · « **Reply #90 on:** April 19, 2012, 07:33:04 am »

Well, she's gutted now, just an empty shell again.

You can see the motor in the pic below with a 380 for size comparision...it's a pretty potent motor I'm told, I've never used it yet. Probably very amp hungry...

triumphjon · « **Reply #91 on:** April 19, 2012, 08:04:59 am »

it looks as though it might be hungary , have you managed to move the running gear aft too ? mine have the motors , escs , batteries and rudder servo aft of the cockpit bulkhead . the only equipment in front of the cockpit is the rx and a very small switcher that operates my lighting .

U-33 · « **Reply #92 on:** April 19, 2012, 12:24:57 pm »

Ok, starting on the refit now...changed the motor for an ARK Model/Hooben 550, changed the motor mount for one which actually fits, shortened the prop shaft and tube by 2", and everything now sits between 2" and 3" further back in the hull.

I'm also going to do away with the wooden radio/battery tray, the batteries will be velcroed onto a piece of styrene sheet along with the rx and the new esc, so there will be a considerable overall loss of weight and a rearward shift in the C of G.

triumphjon · « **Reply #93 on:** April 19, 2012, 09:05:14 pm »

that set up looks much better , i would advise making up a plasticard tray for both batteries plus a receiver pack & lift it away from the hull a little just incase of water ingress , mine is about half inch up from the hull skin , mounted on the same type of posts that the ic boys use to mount engines etc .

U-33 · « **Reply #94 on:** April 19, 2012, 09:22:30 pm »

I'm on that Jon, I had to order some styrene sheet as I'd run out(most unusual for me)

I'll also be installing a different esc, one with a built in BEC, so that's the rx pack done away with, not needed. I wish I could lose as much weight as the Spearfish has!

Shipmate60 · « **Reply #95 on:** April 19, 2012, 09:22:52 pm »

Blimey U-33,
You took a very roundabout way to get back to what you considered in the first place!!!

Bob

U-33 · « **Reply #96 on:** April 19, 2012, 09:29:52 pm »

You know me Bob...if there's a right way of doing something, a wrong way of doing something, and a 'just plain bloody daft' way of doing something, you'll not need three guesses as to which way I'll choose!

Rich

triumphjon · « **Reply #97 on:** April 19, 2012, 09:39:39 pm »

ah ! but that one in chichester looks positivly naked , fully air conditioned even ?

U-33 · « **Reply #98 on:** April 19, 2012, 09:55:53 pm »

This one?

triumphjon · « **Reply #99 on:** April 20, 2012, 08:36:06 am »

what a way to leave such a great craft ? how much detail are you looking to include in your own model ?

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Author Topic: Spearfish requirements... (Read 38410 times)