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Search: Posts Made By: JRW
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Forum: Aerodynamics
02-16-2010, 10:26 PM
Replies: 35
Views: 3,616
Posted By JRW

RE: Cant get CG on my plane

DaRock is right , that's a very good calculator , you have to just realise that you have a parallel section of wing at the root which will alter it slightly , but not enough to worry about . When you...
Forum: Aerodynamics
02-16-2010, 09:21 PM
Replies: 35
Views: 3,616
Posted By JRW

RE: Cant get CG on my plane

I don't know how scale the KMP AT6 is but working from a scale drawing and info 30% of the MAC would be almost exactly in line with the windscreen frame. Where are you measuring from ?
Forum: Aerodynamics
02-16-2010, 08:59 PM
Replies: 35
Views: 3,616
Posted By JRW

RE: Cant get CG on my plane

84mm behind the front of the wing sounds about right. I'm assuming a parallel wing chord of about 12 inches . The AT6 has a swept back leading edge, this is going to mean that the MAC ( mean...
Forum: Aerodynamics
02-14-2010, 08:00 PM
Replies: 35
Views: 3,616
Posted By JRW

RE: Cant get CG on my plane

where are you trying to balance the model ? it should be at about 25 to 30% of the mean aerodynamic chord. Hard to believe that 24 oz right at the front doesn't move the balance point. What is the ...
Forum: Aerodynamics
02-14-2010, 05:36 PM
Replies: 35
Views: 3,616
Posted By JRW

RE: Cant get CG on my plane

What sort of fuselage does it have ? Is there a removable cowling in the front . Combatpigg had a very good suggestion - move the engine forward. The longer moment arm will allow you to get the...
Forum: Seaplanes
01-13-2007, 03:11 PM
Replies: 31
Views: 4,463
Posted By JRW

RE: Lake Buccaneer

Hi I have the plans for the Renegade 250, I wonder if you know of any threads that talk about how well it flies. You posted the picture from the fellow in the Czec republic. Thanks for any...
Forum: Seaplanes
01-12-2007, 09:53 PM
Replies: 33
Views: 17,490
Posted By JRW

RE: 101" Lake Renegade 250 build

The pictures look great. Please email me directly, I have the plans and some questions.

Thanks

Jeff [email protected]
Forum: Seaplanes
01-07-2007, 09:52 PM
Replies: 33
Views: 17,490
Posted By JRW

RE: 101" Lake Renegade 250 build

smpshot

Are you still building the Lake 250, I have got the plans from germany and i have a couple of questions youmight be able to answer.

Really appreciate the help.

JRW

...
09-13-2005, 02:00 PM
Replies: 11
Views: 2,287
Posted By JRW

RE: Aluminum control horns

James

Its the scale, not the air where it matters. Compared to 3" plus 6/32 bolts used for horns, there is enough of a weight savings to matter (CF or AL).

Jim W.
09-13-2005, 07:52 AM
Replies: 11
Views: 2,287
Posted By JRW

RE: Aluminum control horns

Thanks Guys,

I have followed the link above and like the horns. Which are lighter, the Aluminum or CF horns? I'd like to buy some of these. Is there a US distributor?

Thanks,
Jim W.
09-13-2005, 06:48 AM
Replies: 13
Views: 2,300
Posted By JRW

RE: 3 or 4 blade Prop for Plettenberg?

Hi Norm,

I did not notice any problem at all with the controller. I actually borrowed this controller from a friend - until mine arrives. He set it up and I believe must have done it correctly...
09-12-2005, 07:22 AM
Replies: 13
Views: 2,300
Posted By JRW

RE: 3 or 4 blade Prop for Plettenberg?

Hi All,

This weekend I flew my Plett 30/10 with 21x12WE prop and Tanic 5S2P 4960 packs and C.C. 110 controller. I flew this on my originally glow powered Aggressor. In making the conversion, I...
09-12-2005, 06:54 AM
Replies: 529
Views: 148,038
Posted By JRW

RE: New Kyosho Oxalys 50 ?

HI All,

My kit arrived and it looks great - no damage. Worth noting is that the components feel very light - even the ailerons have lightening holes in them!!!! This will be a fun plane when I...
Forum: Glow Engines
09-08-2005, 05:07 PM
Replies: 5
Views: 852
Posted By JRW

Irvine .53, YS .63, or Saito .82

Hi All,

I'm selecting an engine for a new Oaxlys .50 sized pattern plane. I'm familiear with the Irvine .53. That engine really sang on a Hype 3D for me. However, I'm thinking that this new...
09-08-2005, 12:56 PM
Replies: 13
Views: 2,300
Posted By JRW

RE: 3 or 4 blade Prop for Plettenberg?

Thanks Adam for the pics. I ordered the adapter kit. I think I'll be first flying the system this weekend without spinner. One question on tightening the prop. While tightening the prop last...
09-07-2005, 02:58 PM
Replies: 11
Views: 1,159
Posted By JRW

RE: aileron differential

HI All,

A quick test for this is to fly into a 45 degree upline and perform high-rate aileron rolls to one direction. You will quickly see if the plane arcs off one direction or the other - or...
09-06-2005, 02:00 PM
Replies: 37
Views: 2,974
Posted By JRW

RE: FL contests, Apopka & Jax

Hi Ron,

Maybe Billy could post the scores. For the 12 of us who competed there was plenty of raffle prises. Also nice, Billy had ice-chests of drinks for the judges. Break down was 5 in FAI...
09-06-2005, 10:52 AM
Replies: 37
Views: 2,974
Posted By JRW

RE: FL contests, Apopka & Jax

Hi Guys,

Billy M. did a great job of CD'ing the Jacksonville contest this weekend. He arranged for quite a bit of give-aways, raffle gifts, and dinner on Saturday night. The field is a...
09-02-2005, 08:28 AM
Replies: 37
Views: 2,974
Posted By JRW

RE: FL contests, Apopka & Jax

Hi Guys,

Does anyone have directions to the field from the Days Inn Airport hotel, or directions from the freeway?

Thanks,
Jim W.
09-01-2005, 07:54 AM
Replies: 37
Views: 2,974
Posted By JRW

RE: FL contests, Apopka & Jax

Hi Guys,

Miami/Ft. Lauderdale is not having the lines, but prices are in the $3.00/gallon range. Freddy and I plan on leaving tomorrow afternoon. I'm thinking of taking a 5 gallon can of gas...
08-01-2005, 03:08 PM
Replies: 7
Views: 1,206
Posted By JRW

RE: Brio knife edge trimming?

Hi,

I believe I read in the Brio instructions that the stab is supposed to be set at negative incidence, have you followed the instructions? I watched Quique, Don, Adrew, Danny, all fly the...
08-01-2005, 02:03 PM
Replies: 102
Views: 20,165
Posted By JRW

RE: AXI 53XX Pattern motor

Hi PatternPilot,

Thanks for posting your information. Please descibe your battery packs a little more. At 4200 mah, how much are you putting back in after a flight? What class are you flying?...
07-29-2005, 12:56 PM
Replies: 102
Views: 20,165
Posted By JRW

AXI 53XX Pattern motor

Hi All,

I would like to see some comments on the AXI motor Danny L. was using this nats. I believe he was using the 15.75 x 13 APC glow prop. The lower cost of the motor is tempting.

...
07-28-2005, 12:01 PM
Replies: 31
Views: 5,566
Posted By JRW

RE: E-Pattern Observations

Hi Chad,

Thanks for the tips. I enjoyed watching the finals and chatting with yourself and Adam. Best of luck in France.

Jim W.
Team Futaba
07-26-2005, 10:18 AM
Replies: 11
Views: 1,600
Posted By JRW

RE: 2005 NATS Experience

Hi Don,

Congratulations on flying so well throughout this year! It was a pleasure to fly on the FAI line at this years nats. I'm looking forward to it again for next year!

Jim W.
Showing results 1 to 25 of 172
 


 
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