RE: New Hangar 9 1.50 P-51 Build

RE: New Hangar 9 1.50 P-51 Build
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Hangar 9 P-47 D Thunderbolt - 150
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All Forums >> RC Airplanes >> RC Warbirds and Warplanes >> RE: New Hangar 9 1.50 P-51 Build

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RE: New Hangar 9 1.50 P-51 Build - 5/12/2008 3:05:52 AM

frisconick

Posts: 202
Joined: 11/14/2005
From: Frisco, TX, USA
Status: offline

Thanks for the tank info, but I'm using a straight carbon fiber rod from the throttle servo to the carb and it goes right through where the tank should be. I'm using a Sullivan (I think) mounted on its side so it doesn't interfere with the throttle rod. May need to rethink that. The six ounce of reserve is less than 3 minutes of normal flying, but if nursed, could probably handle several missed landing attempts before flame-out !!

While we're talking about throttle linkage, with the McDaniels on-board glow, I had it idling at 1,200 RPM yesterday. It sounded almost like a Harley: pattata, pattata, pattata.....

Nick

(in reply to Rip n Bank)

Post #: 1451

RE: New Hangar 9 1.50 P-51 Build - 5/12/2008 3:37:43 AM

Rip n Bank

Posts: 423
Joined: 3/12/2005
From: Fort Collins, CO, USA
Status: offline

quote:

ORIGINAL: frisconick

Thanks for the tank info, but I'm using a straight carbon fiber rod from the throttle servo to the carb and it goes right through where the tank should be. I'm using a Sullivan (I think) mounted on its side so it doesn't interfere with the throttle rod. May need to rethink that. The six ounce of reserve is less than 3 minutes of normal flying, but if nursed, could probably handle several missed landing attempts before flame-out !!

While we're talking about throttle linkage, with the McDaniels on-board glow, I had it idling at 1,200 RPM yesterday. It sounded almost like a Harley: pattata, pattata, pattata.....

Nick

1200 RPM?

Outrageous!!!

_____________________________

The more planes you have in your "hangar," the less likely your wife will notice a new one!

(in reply to frisconick)

Post #: 1452

RE: New Hangar 9 1.50 P-51 Build - 5/12/2008 5:31:24 AM

kahloq

Posts: 1566
Joined: 1/1/2006
From: Fort Collins, CO, USA
Status: offline

Talk about a low idle patta, patta, patta sound.....club friend was bench running his saito 450 radial at our small field today and was getting 1400 rpm's on motor not even close to broken in. Man it sounded good both at idle and at full throttle.

(in reply to Rip n Bank)

Post #: 1453

RE: New Hangar 9 1.50 P-51 Build - 5/12/2008 1:17:39 PM

frisconick

Posts: 202
Joined: 11/14/2005
From: Frisco, TX, USA
Status: offline

I really do like this on-board glow starter. How convenient can you get ? Ultra low reliable idles, even though I would never fly it with the idle set at 1200. I can reliably hand start it every time now, usually just by grabbing the spinner and flipping it backwards, or using a foot long piece of automotive heater hose to flip the prop backwards. I have not used the electric starter in my last two outings.

Nick

(in reply to kahloq)

Post #: 1454

RE: New Hangar 9 1.50 P-51 Build - 5/14/2008 6:00:24 PM

justdontcrash

Posts: 4
Joined: 5/10/2008
From: London, ON, CANADA
Status: offline

Hi all, just bought this plane and i'm wondering about powerplants. As I see most are using a Saito 220 or the evo 26 or 35 gasser. I was wondering if anybody has used the First Place FPE 2.4 or the Cermark SPE 40cc. I'm pretty new to the hobby and i'm not even sure about the quality of these engines. Any opinions would be appreciated. Thanks
Jay

(in reply to frisconick)

Post #: 1455

RE: New Hangar 9 1.50 P-51 Build - 5/14/2008 11:45:02 PM

334755

Posts: 5
Joined: 11/12/2004
From: Fayetteville, GA, USA
Status: offline

Has anyone used a O.S. 200 in the Mustang

(in reply to justdontcrash)

Post #: 1456

RE: New Hangar 9 1.50 P-51 Build - 5/18/2008 12:04:30 AM

frisconick

Posts: 202
Joined: 11/14/2005
From: Frisco, TX, USA
Status: offline

Flight Report:

Beautiful day here in north Texas today. Got in flights 10-13 today. Started with the 18x10 MAS, then the 17x10 Bolly turned about 8600 on the ground, then the 20x8 MAS turning about 7400. Last flight was back to the 18x10. I did not notice a whole lot of speed difference between the props ??? But, I did go back to the 18x10. That one still feels the best. Leaned out it turned 8400, but I backed it off to 8200 for flying. I'm still getting my butt kicked, speed wise!! I don't like it. Good thing I didn't opt for the 180 !!

I have a 24 oz tank in it. The last flight was pretty much full throttle until landing 8 minutes later. I pumped 6 oz out of the tank, so I probably had 4 or 5 minutes of "slow" flying still in it which is a good cushion. I think it still needs a little more nose weight, so I'll move the retract battery forward to the fuel tank area. Inverted, it took very little down to fly level and on landing, it doesn't seem to settle in like I prefer. Weather should be good here tomorrow also, so more to follow, I hope.

Nick

(in reply to frisconick)

Post #: 1457

RE: New Hangar 9 1.50 P-51 Build - 5/18/2008 1:22:55 AM

kahloq

Posts: 1566
Joined: 1/1/2006
From: Fort Collins, CO, USA
Status: offline

Well, I got the retract servo arms replaced today. I tell you what, that was a chore and half. It wasnt hard getting them out to change the arms, but it was getting them positioned just right and the control arm length. The holes in the metal servo arms are in different spots out as compared to the karbonite ones I had in there. Man, those karbonite ones just happen to have the holes just right that I didnt have to fiddle much. But these......Oh man, took me 2 1/2 hours just to get them working right and I still had to add washers to the inner most allen bolt locations to shim that side of gear flange up slightly. Otherwise, no position would work at all without some "binding" noise. At least its done and the washers will splay the wheels just ever so slightly more outwards. Not that it needs a wider stance, but heck another mm or two cant hurt.

(in reply to frisconick)

Post #: 1458

RE: New Hangar 9 1.50 P-51 Build - 5/18/2008 1:57:33 AM

nemesis4u

Posts: 2018
Joined: 4/4/2002
From: Bryan, TX, USA
Status: offline

Hey kahloq...et al..,

Just picked up a RTF 1.50 size P-51 ..
I am needing to install my receiver and adjust the rates, then check all fasteners to ensure she is buttoned up...

THen...Off to maiden her!!!

ANy tips on throws etc...

BTW it has an EVO26 Gt and EVO 18x6 prop.. SInce we are 250 ft above sealevel should fly at a decent pace...
oh and the previous assembler of this model installed Robart pneumatics with OFFSET oleo struts..
Need to mount the gear doors...

Photos to follow!

-Tomas
nemesis4u

_____________________________

R/C WARBIRDS / RC TANKS ENTHUSIAST
VQ WARBIRDS, KMP, & RCV

(in reply to kahloq)

Post #: 1459

RE: New Hangar 9 1.50 P-51 Build - 5/18/2008 3:49:42 AM

kahloq

Posts: 1566
Joined: 1/1/2006
From: Fort Collins, CO, USA
Status: offline

very nice Thomas. Im using a JR X9303 and i set the ailerons for 50% on low rates. Has decent, but not excessive deflection. We measured it at the field and it came awful close to the recommended throw. For the elevator, i had that at 50% as well, but Rip N Bank saw it and recommended increasing it to about 75%(by looking at the actual deflection). I dont normally fly my warbirds with a lot of elevator as I dont come in with a steep approach like Rip does, but.....Ill leave the elevator rate at the 75% for now..... but will also input a considerable amount of expo so I dont overcontrol the elevator.

(in reply to nemesis4u)

Post #: 1460

RE: New Hangar 9 1.50 P-51 Build - 5/18/2008 4:12:54 AM

334755

Posts: 5
Joined: 11/12/2004
From: Fayetteville, GA, USA
Status: offline

I've been hearing that the Evo 26 is a little underpowered. I was wondering what you guys think about putting an evo 26 in the mustang as opposed to an evo 35

(in reply to kahloq)

Post #: 1461

RE: New Hangar 9 1.50 P-51 Build - 5/18/2008 7:34:29 AM

M64

Posts: 149
Joined: 11/15/2006
From: Cape Town, SOUTH AFRICA
Status: online

the Evo 26 is not underpowerd for the plane, it just won't give that explosve power as the 35.
I am probably going to put my evo 26GT2 in this bird unless something else comes along that is just as nice as this bird from Hangar 9.

M64

_____________________________

You can't change what you don't acknowledge.

(in reply to 334755)

Post #: 1462

RE: New Hangar 9 1.50 P-51 Build - 5/18/2008 12:30:39 PM

jpjedi

Posts: 26
Joined: 2/14/2008
From: Bangalore, INDIA
Status: offline

Hi guys!

Good to read all the great experiences from you all.

Myself, I am still building and with a busy life, I do hardly find time to get it finished!

Anyway, I am not happy at all with the mechanical retracts and decided to replace the whole carriage with a robart air retract set. I know we have been discussing it here with the outcome that there was not real plug & play set available YET.

So I was hoping there is a set available today and otherwise can somebody share a good experience with modelnumbers so I can check it out?

Many thanks and I wish you many happy landings!

(in reply to frisconick)

Post #: 1463

RE: New Hangar 9 1.50 P-51 Build - 5/18/2008 10:53:10 PM

frisconick

Posts: 202
Joined: 11/14/2005
From: Frisco, TX, USA
Status: offline

Good news from the airfield,

Two more flights today in a 10-15 MPH north wind right down the runway. The first was a warm-up with the 18x10 MAS. Engine really sounded funny, with puffs of white smoke at times. Landed and found the pressure tube from the muffler nipple cracked and leaking. I had seen some residue yesterday where there shouldn't have been any, but didn't pay much attention to it. That's were it was coming from. Clipped the end off the fuel tube and re-attached it to the muffler. Also put the 17x10 Bolly back on. Fired the 220 up and what a difference!! Reset the high end needle. It was turning 9400 leaned out, but I backed it off to 9200. Filled the tank and ready for another test flight (#15). It flew like a different airplane. One of the guys there had a radar gun and we clocked it at 99MPH with the wind, so even if you subtract 15, that still puts it at 84MPH.

A couple of other things to note: the Keleo exhaust nut worked its way loose, so check it regularly.

When I bought the Bolly prop from