Here is a list of all the postings Applewood has made in our forums. Click on a thread name to jump to the thread.
|Thread: Best prop for AXI 5330/18 259 on 8S|
Suppose I’m trying to work out for a warbird, is the thrust to weight more important, pitch speed or pitch to stall ratio. Or the combination. I might be in the realms of over thinking this now . I like to be able to fly comfortable, not massive speed , but enough power to get out of trouble. I like to have reasonable throttle range response, throttle mid to 3/4 for average flying.
Quick Qu, with lower speed flying characteristics more challenging, would more pitch give you ability to throttle up and gain speed quickly if needed? How does the 18x12e lookout the calcs if you don’t mind gents? It would give more pitch speed without sacrificing too much thrust, amps are still ok.
Hi Frank, thanks for the response. It's an OS HV 70a (85a peak) esc. I might try an apc19x10e. Like you say it would give more ummph for short periods. Should get more of a linear throttle response.
Just done some rudimentary tests in the garden (rigged up luggage scales to the tail). It’s pulling 6kg with the 18x10 wooden Aerostar, And 5.5kg on an apc ic 18x8. Interestingly the wooden sounds so much quieter. Unfortunately I’ve not got any other lager props to try.
ive got a watt meter but it’s got the wrong connector type, Not got a rpm meter.
Edited By Applewood on 09/05/2020 12:32:43
And thanks for the help Btw. I’m happy with IC and smaller electric setups, less confident with electric as it gets bigger.
Current prop is a cheapy hobbyking Aerostar wooden job, So probably not best to gauge best results. If I’m getting a pucka apc-e prop which is best to start with?
Just checked the plane weight. It’s 5.35kg without 8S lipo or 6.35kg with . I assumed you include lipo weight.
Hi there I’m finishing setting up a tony nijhuis 72” spitfire (6500g) with an AXI 5330/18 v1 259kv running 8S. I’ve put on an 18x10 pro which im sure will work but doesn’t pull massively well when testing on the ground. Does anyone have access to an online calc or uses this setup that could advice prop setup on 8S. Cheers
Edited By Applewood on 08/05/2020 23:42:31
|Thread: Oleo pin adaptor|
ok thanks Denis, unfortunately my workshop is a little light on the tooling front. HK do provide an Oleo with 6mm pin which is again out of stock, maybe I wait for that one.
So do the HK ones have a solid 11mm plug rather than tube out to accept a 11mm pin? The HK pictures don't show either way. I assumed these where like the robart's which have a shaft in which the pin locates.
Thanks Dennis, did you epoxy the spacer to the pin?
These are the oleo type I would prefer, **LINK** however they have 11mm pin
I'm going to be cutting down a pair of 6mm dia piano wire torsion landing gear to attach oleos to absorb some of landing bounce. Ideally I would go for the trailing link type to give a more scale appearance.
HK have a number of oleos at a reasonable price, however most seem out of stock at the moment. Most accept a 11mm or a 12mm pin and don't appear to be supplied with bushing / adaptor to fit a smaller pin.
I've got a pair of Robart 650s for another project and they include the bushing for different dia pins, it's a shame HD don't.
Is there a standard / best practice to overcome attaching 6mm pin to 11/12mm oleo? I've had a seach for collets, bushes, collars etc, but nothing is jumping out. I don't have access to a lathe to make my own.
|Thread: SLEC Chipmunk build blog|
Looks great Tim, well done. Maiden this week??
Hi Jon and Tim,
so my tanks is 55mm tall and the centre of the carb is 18mm from the bottom of the tank. This makes the centre of the tank 10mm higher than the centre of the carb. Would you recommend getting the tank lower??
Thanks Tim, you build is coming on really well. Are you going for twin flap servos or single?
I’ve measured my setup, the carb centre line tank is 18mm above the bottom of the tank. It’s also a 16oz Sullivan tank. Is the siphoning issue only a problem when static, or in flight too. Do you think the tank is low enough?
Hi Tim, I'm enjoying your build, great work.
I'm in the latter stages of the RAF trainer version, 2 piece wing (maybe 1 - jury's still out), & laser 150.
Are you levelling the centre line of the carb with the centre or bottom of the tank? Just trying to make sure I've got the right level tank.
|Thread: Slec/Apache Chipmunk kit advice.|
Hi David, I’ve read this in a couple of places about trouble getting the fuel tank height right for the laser 150 when inverted. Do you have any lessons you could pass on please? Mine is the raf trainer version, split wing, with laser 150 inverted. Just in the final stages before covering.
Also general question , does the 6mm landing gear wire hold up, or would it benefit from sprung oleos .
|Thread: Slec apache super chipmunk|
|If anyone could take a picture of that area of the plans, it would be really appreciated. Thanks|
Ok great, I’ve sent you an email. Thanks
Hi, hoping someone can help. Does anyone have a photo of the single servo flap setup with torque rods. My plans have the flap servo in the wing, so I’m struggling to work it out. If someone could post Either picture of the wing made up or pic of the pans please. Your help would be appreciated.
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