Search: Posts Made By: Peter Khor
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02-12-2005, 12:46 PM
Replies: 15
Views: 1,051
Posted By Peter Khor

RE: Landing in a tight spot... idea?

And I forgot to mention I'm flying with a camera also ;) fwiw, stock SS, Aiptek Mini PenCam with servo and old-school 8x A size NiMh. Not exactly in a tight spot, but eg picture taken below was...
02-12-2005, 07:44 AM
Replies: 15
Views: 1,051
Posted By Peter Khor

RE: Landing in a tight spot... idea?

fwiw on the SlowStick you can 'feather' the tail surfaces and spiral in quite nicely - full up elevator and rudderl, you can stall it in a tight spiral all the way down (get your CG a litle back...
02-08-2005, 02:21 PM
Replies: 4
Views: 3,633
Posted By Peter Khor

RE: Soldering battery tabs

Any idea if any cell mfg have switched from nylon to some other high-temp equivalent in recent years?
02-07-2005, 01:55 PM
Replies: 2
Views: 627
Posted By Peter Khor

RE: Best Lipo charger for 10+ cell?

Astro has a lipo charger, also you can use a (Programmable) lab power supply (V and A adjustable) if you know what you're doing.
02-06-2005, 02:56 AM
Replies: 2
Views: 497
Posted By Peter Khor

RE: Electric Gee Bee?

http://www.hobby-lobby.com/gee-bee.htm

Check out the video btw!
02-04-2005, 02:20 AM
Replies: 8
Views: 819
Posted By Peter Khor

RE: GP3300 vs. Kokam 4th Generation

How about GP3300's pulling 150Amp+ in F5B setups? (granted, a LiPo F5B would be new teritory, but a rule change isn't anytime soon).

Also I didn't read thru everything, but I guess the GP3300's...
02-04-2005, 01:06 AM
Replies: 13
Views: 1,173
Posted By Peter Khor

RE: GD-600 gearbox

Yeah, I have been getting 10T from Gary Wright (and now MEC) for sometime, just that Dru mentioned lhs car section, which I have never been able to find.
Replies: 28
Views: 2,109
Posted By Peter Khor

RE: The best radiosystem for around 500$

Yes, TX alone with R770S or complete with Servo pack.
Replies: 3
Views: 550
Posted By Peter Khor

RE: Why can't I use....?

fwiw 'modern' NiMh have no problems pouring out the amps as required; for eg

Sanyo 600AR cell, you'll be hard pressed to pull more than 10A. KAN or GP 1100, 20A to 30A (GP's) isn't a problem. ...
Replies: 28
Views: 2,109
Posted By Peter Khor

RE: The best radiosystem for around 500$

Check out the thread on metalic paint pealing/wrinkling from 9C case in under a year; looks like a bad batch out there.
Replies: 2
Views: 516
Posted By Peter Khor

RE: How to swap my wimpy 380 without breaking the bank?

imo this works quite well:

http://www.horizonhobby.com/Shop/ByCategory/Product/Default.aspx?ProdID=EFLA400

8x4 prop, 8 cell pack works great. They (HZ) also has a combo with the prop, but...
01-28-2005, 02:16 AM
Replies: 13
Views: 1,173
Posted By Peter Khor

RE: GD-600 gearbox

Dru,

Wondering if you've seen 10T pinions at the car section of your lhs before?! Smallest I could find was 11 or 12T iirc. I had 3 lhs look up all R/C car suppliers/mfg/distributors for 10T...
Replies: 25
Views: 2,601
Posted By Peter Khor

RE: MORE POWER! I need 2000 Watts

Wow, not everyday I've seen sponsored academia projects that have no end goal in mind (from the sponsors)? fwiw, the 100w/lb is just rule of thumb; design and prop it correctly, you've get more...
Replies: 25
Views: 2,601
Posted By Peter Khor

RE: MORE POWER! I need 2000 Watts

Just imo ... I'm assuming it's an Engr project to see how much weight you can lift/distance? (water ballons) Best approach is to design the a/c from that requirement, and imo you will probably not...
01-24-2005, 01:40 AM
Replies: 6
Views: 542
Posted By Peter Khor

RE: IS THIS A GOOD DEAL!!!!!!!!!!!!1

BiPed $50
EFL400 $55
Phnx25 $75
Hitech Micro Flt Pack $65 (the Feather RX is famous for glitching)
LiPo $25-45, depending on what cellcount/brand/etc.

How much is it worth to you?
Replies: 136
Views: 30,489
Posted By Peter Khor

RE: NEW FUTABA T14MZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Okay, getting slightly OT ... but just to add a personal experience (my own stuff):

- XP laptop with close-screen-to-standy, I only need to reboot once a couple of weeks (never switched 'off')
...
10-16-2004, 06:05 AM
Replies: 10
Views: 1,662
Posted By Peter Khor

RE: Lipos - can you store them charged?

Dick, just imho ... I don't think a 6/30/04 pack, runined (say today) in under 4 months would be due to storing at full charge (say you used it only 4 times ... 1 month storage in between). I've had...
Replies: 19
Views: 1,430
Posted By Peter Khor

RE: Rubber Ducky Antenna

fwiw:

http://www.bergent.net/antenna_field_test.html

As for engineering standpoint, iirc helical antennas DO have max radition off the end.
Replies: 19
Views: 1,430
Posted By Peter Khor

RE: Rubber Ducky Antenna

A quick question ... is mounting a 3rd party rubber ducky antenna considered end-user modification of a TX? I get conflicting views ...(fwiw I do use 'em ...)
10-14-2004, 05:11 AM
Replies: 3
Views: 1,713
Posted By Peter Khor

RE: New JR 9XII Radio in Japan

Sorry had to point out ;) rock solid bling-bling from JR!
Replies: 96
Views: 12,321
Posted By Peter Khor

RE: Futaba T14MZ price is posted at Tower

fwiw list prices in Japan:

T14MZ
280,000 Yen = 2,518 USD

9ZWC2
237,000 Yen = 2,132 USD

I'd suppose one can guesstimate street price of the T14MZ from current 9Z prices in the US...
Replies: 136
Views: 30,489
Posted By Peter Khor

RE: NEW FUTABA T14MZ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

There are 2 CPU's in the T14MZ, one to run the radio (for flying), and the other for the WinCE interface (which looks more like a top layer programming interface and monitoring) - so it looks like...
10-01-2004, 01:48 AM
Replies: 7
Views: 1,066
Posted By Peter Khor

RE: is tp2100 3s li-po too heavy for e-flite

TP2100 3s, Eflite 400 brushless motor (not the 370) in a 3DX and Ultimate, lots of ooomph.
08-23-2004, 02:37 AM
Replies: 19
Views: 2,269
Posted By Peter Khor

RE: I Love This Hobby!! Brushless Projeti Rocks! Resurrecting the Projeti!

When I started out with LongCan 400 motor, I was already using 10 cell KAN packs, then then packs got used with the Mega, and then I 'upgraded' to the TP pack - so I don't have an 8-cell comparison...
08-23-2004, 02:33 AM
Replies: 42
Views: 2,932
Posted By Peter Khor

RE: NiCads vs Nmh

iirc Battery mfg tech documents state C/50 rate if you're putting it on a charger indefinately. The other way is to put your C/10 charger (Wal-Wart) on a 24 timer that turns it on ~1hr a day.
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