Greg Covey

If you split the 6s Lithium configuration into two 3s packs for charging, two of the inexpensive Apache 2500 chargers will charge the packs in less than an hour.

Xfactory

My Feedback: (3)

That sounds like a solution, I already have 1 Apache charger. Am I correct in calculating 2 x 4200 packs will give me 8.4 ah with a 40 amp draw I can expect somewhere around 12 min of duration.

Greg Covey

I believe that your two 4200mAh packs will be in series, not parallel, so the capacity stays at 4200mAh. The voltage doubles from 3s to 6s or 20-cells NiCd.

Xfactory

My Feedback: (3)

Thanks.

modeldesigns

Hi Guys,

We have an EP converted Hanger 9 Corsair flying in England too!
It's a great performing model (flying pics by Gordon Whitehead)

[img][/img]

Here are the details:

65" Hanger 9 Corsair
9lbs flying weight
5V UBEC (one for the Rx, one for the retracts)
Axi 4130/16 motor, radial mount
Jeti Advance 75-3P ESC
(Hard timing, no brake)
Thunder Power 6Ah 6s3p LiPo cells
(As two, 6Ah 3s3p in series)
15x12 APC wide blade Pattern prop
6600rpm @ 47A
9lbs static thrust
75mph pitch speed

The conversion will be a published article in the Traplet QEFI magazine.

Cheers,

Pete.

Greg Covey

Hi Pete,

Great job!

Thanks for the detailed listing and photos.

Swift071

My Feedback: (14)

Hi Greg, We have been conversing about outfitting my Fascination 50 with AXI 4120/14, Jeti 70, and your recommended prop sizes. The last question I had related to batteries, namely a pair of 4 cell Kokam 2000s or a pair of 3 cell ThunderPower 4200s. Your answer was either pair would do the job adequately. My question today is what about a single PolyQuest PF4S-4400N. It's a new battery coming out in two weeks. It's 4 cell 14.9 volts, 4400 mah, 53 amps, 12 C with 16 C bursts and cost $202.00. Weight, 437 grams, is less, than the previously mentioned pairs and so's the cost.

I was hoping to get an answer via this thread so I could commit to the battery as soon as possible. My email is [email protected] if you choose to answer privately.

Thanks

Bob J.

Greg Covey

Hi Bob,

For the 4120/14 motor you'll want either a 4s or 5s total pack configuration. Two the ThunderPower 3-cell packs in series is too much so select the 2s2p ThunderPower 4200mAh packs instead.

I'm not familiar with the PolyQuest pack. The cost looks good so make sure that the size fits ok. If you choose it, please report back to us how it worked out!

Good luck!

Swift071

My Feedback: (14)

Thanks for the prompt reply and your great advise which has served me so well in the past. I am tempted to try the PolyQuest just because it is new. I have a friend in Calif who also has much experience with large electrics since that is all they are allowed to fly and have asked his opinion of the PolyQuest, that's also where PolyQuest are distributed. If he has anything of value to contribute I will post it here. I might even get both and compare. The plane is almost done, battery will be last addition.

Bob J.

FlyinTango

Hey Folks!

Tango here. I weighed all my plane stuff today on my H-9 Corsair. With my AXI 4130-16 and Tanic Pack 6s4p 9800 mah batts, without the actual motor mount (just threaded bolts holding the motor to firewall). I am right at 10 lbs. I suppose I will end up somewhere between 10 and 10.5 lbs. Does anyone else have a Corsair this heavy? What kind of flight difficulties can I expect with this much weight? Yeah, okay. "Assuming" an expert pilot flies my 10.5 lb. Corsair, what type of flight difficulties can "he" expect with that much weight?

Thanks for all the help,

Tango

Greg Covey

Tango,

I really don't expect that you'll have a problem at 10.5lbs. My Corsair weighs 9.5lbs but my Lithium pack only has a 6AH capacity compared to your 10AH capacity.

My Corsair flies like a giant parkflyer! It literally takes off in 15' if don't try to keep it on the ground. We like to taxi with the tail up on take-off for a real scale effect, but, if the wind is blowing, it can take off in 10'-15' which will surprise you!

Landings are just as sweet as can be. My Robart strut modication only cost about $80 because I still use the stock retract mechanism. It eliminates the ocasional landing bounces where your buddies start counting and say, "All three of those landings looked great!"

bird-shots

I have the H9 Corsair, but its configured with a 4120-18 with 5s3pTP6000, HM 77 and APC 14x8.5. The AUW is 8lbs 5 oz and it flys great. I run the same configuration on a World Models 60 size P-51. It weighs about the same and flys great. Lot of difference in the weight of the 4120 and 4130 configurations, but I'm surprised its that much. My guess is that you are using Robarts or Century Jet retracts.

Here's hoping you like fast landings

geach

modeldesigns

Hi Bird-Shots,

7oz difference in the weight of our two Corsairs would be comprised of your TP5s cells compared to my TP6s cells and your 4120/18 compared to my 4130/16. The remaining 4oz could easily be made up from the differences between the remaining hardware and airframes. I am using the stock retracts and legs. So, not too bad really!

Just for interest, my Hanger 9 Mustang (using identical hardware to my Corsair) comes out at 8lb 6oz. Not surprisingly, the difference in the weight between the Mustang and Corsair is all in the Corsairs wing.


Hi Greg,

I agree, my first take off with the Corsair took me by surprise! It was off the grass in less than 15' in the 10-15mph wind. No problem, it just accelerated into a circuit. Great models, both the Corsair and the Mustang.

Pete.

luc-RCU

Greg
I just ordered the big GP gee bee (around 12Lbs, maybe slightly less), that I plan to electrify with the axi 4130/16, 6S2P Irate 2600 and a 15/10 APC E prop. I will use a 48 opto hacker which I guess should be enough in terms of amps (around 40+).
Do you think this will be powerful enough?

Greg Covey

Luc,

It may fly with the AXI 4130 motor but I suspect it will be lackluster.

You really need a power system that will easily output 1000-1200 watts and still have some reserve. The newer AXI 53xx series would be a better choice or an Actro 40-5 motor. In either case, the additional power must be supplied by a higher voltage like an 8s-10s Lithium configuration.

Good luck!

luc-RCU

well, Thx for the advice.
This plane would already be quite loaded with 6S (around 100g/dm2), so I don't think it would be advisable to add to the weight.
I understand it will not fly very fast (specially for a pylon racer), but I hope that will be enough. I will try to stay within 11Lbs and maybe to put a 7S (ez for me as I have 2P packs, hooked in serie). I can' t either go above 45A static, so that should be the limit (for the cells and the esc...).
I will still have a look at the 53XX, but shipment is already on its way...

Swift071

My Feedback: (14)

PolyQuest PF4S-4400N and Fascination 50 Report:
Hi Gregg, you told me to report back if I went with the PolyQuest, so here it is.

PolyQuest PF4S-4400N - Great, looking like 2 8 minute flights duration.
Fascination 50 w/AXI 4120/14, Jeti 70 esc, and Ultimate BEC, GREAT!

Axi has 3 degrees rt thrust and 1/2 down, flying weight 5lbs.
Bought 3 props, ultimately worked up to the one you suggested, 15X8, may try a little more pitch. Plane flys very well: great slow fly, very impressive snap roll, great tracking, great pattern flyer. Vertical very strong. Very good cross wind landing. Only 4 flights so far.

Getting cold around here, here's a pic of my transmitter mit bridge and attached heater.
The bridge keeps the mit or fabric cover one inch above the sticks. While flying I feel only the control sticks. The cover is stitched wool, next one will be Polartech fleece.

Bob J.

Greg Covey

Bob,

Thanks for the update. I like your transmitter mit bridge. My mitt was purchased from a place that no longer sells them but it works great and I use it often in the Winter months.

On really cold days, my fingers still freeze so I am interested in your heater. Can you explain more about it?

Swift071

My Feedback: (14)

Gregg,

The heater illustrated was given to me last weekend at the flying field. I am told that it is a copy of an Orbix product. Mine measures 4 X 2.5. It works using lighter fluid. My friend had his going in his pocket. I haven't tried mine yet. Today I did a search and found an Orbix Jon-E hand warmer and ordered it, $20.00. It measures 4.5 X 2.5. There is plenty of room under there for a larger heater. Also I made the Polartech fleece cover last night. My wife had one that she hated because of its color, light green, and gave to me. Ah, I know how she works, she's just trying to get on my good side so I will buy more model airplanes. Hope to try out both the fleece cover and new hand warmer this weekend.

Thanks for all your help, it was spot on.

Bob J.

FlyinTango

Hey Birdshots,

When I saw what you did to that wrecked Corsair, I couldn't hardly believe it! Nice work, man! I am almost ready to fly my H-9 Corsair that weighs in at 10.5 lbs. I have a 6s4p 9800 mah Tanic Pack in there (45 oz.) with the AXI 4130-16 and a Castle Creations 60 amp ESC. With a Master Airscrew 16x10 3-blade prop, it pulls about 47 amps and with an APC 17x12 2-blade prop, it pulls 54 amps. I think either one will fly it and the 3-blade definitely looks best. If I can get 'er in the air, it should stay up for at least 20 minutes, if not 30 minutes. My landings might be white knuckle, though. By the way, I live at about 4,500 feet in elevation here in Southeastern Idaho.

Anyway, I was thinking if I crashed mine, maybe you could make 'er look new again so I could go crash again. Together like that, we would make a good team. I crash 'em, you build 'em. I'll bet we could go through my disability check in no time!!!

Badges, we don't need no stinkin' badges!!! Training, we don't need no stinkin'... uh, oh yeah...Training, I could use lots of that!!!

Happy Takeoff, Flying & Landing,

Tango

bird-shots

Tango,

Thanks for the kind words on the Corsair repair. I fix better than I fly.

Flying the H9 Corsair off our grass strip isn't so easy. We have 3 in the club and all are prone to nosing over...takeoffs and landings. As a matter of fact, the one you referred to is waiting for a repair job...nosed over 3 times in one day. Each time something else rudder/v-stabilizer related broke.

Once you master ground handling, you'll love it. Remember one thing though, and this goes for all the warbirds I've seen, stay well above stall speed. Slowly but surely they, at least the H9 Corsair, will spiral in upon stalling...been there done that. Luckily the vines in the trees caught mine just before it hit the ground.

geach

FlyinTango

Hey Geach,

Thanks for the advice! I keep thinking one of these days, I am just going to go fly it and see what happens. Maybe the day after that, I will be needing your help to get my plane back to where I can recognize it again. At least now, I know a guy who can do re-constructive surgery on a Corsair.

Thanks again for the tips.

Tango

CorsairJock

My Feedback: (90)

Just found this forum, and wish to add my Hanger 9 Corsair to the list of conversions.
AXI 4130/16 motor, 6 cell 3600 mAh Li-Poly, Jeti 40 amp/ 6 cell Li-Poly speed contol, Behr exterior semi-gloss house paint over flat gray Coverite on outer wings, rudder, & stab, 'glassed fuselage, fin, elevators, & wing center section. Top Flite 'red box' Corsair decals + some of my own decals. Weighs 7 lbs, 14.5 oz with batteries (RTF), over 12 minutes of powered flight per charge, and flies GREAT!
Will add more info in the morning if requested.

Greg Covey

Nice picture! Thanks for sharing. Did you paint over the Oracover or strip it first?

My H9 Corsair keeps calling my name everytime I see it stored in the closet for the Winter months. I'll be bringing it out soon and adding the new ball joints that Horizon Hobby sent out for free to customers that asked for the redesigned versions. Apparently, they are less prone to popping off on a rough landing.

CorsairJock

My Feedback: (90)

Thanks, my loving wife took the picture. I wanted to get a gear up fly-by picture, but this close range one turned out to be the one that I liked best because of the details that can be seen in it. I use it for my computer background now.

I stripped off all original covering, replaced with flat gray CoverRite over framed areas (outer wings, stabilizer, rudder). I sheeted fin for additional strength (need it here: I've had too many fin busting nose-overs with Corsairs), then added 1/2 fiberglass layer to fin, elevators, wing certer section, & fuselage. The fuselage front was modified to closely resemble scale profile: it is rounded inward in the area dirctly behind the cowl flaps. The original firwall was replaced with a fabricated one, designed to accomodate the AXI brushless motor and make no provision for a fuel tank. Multiple layers were added to front of fuselage and wing center section in hi-stress areas. The cowl is a modified Top Flite Corsair cowl, and canopy is standard Top Flite Corsair canopy. Entire aircraft was then airbrushed with cutom mixed Behr house paint.

This is my 4th flyable 1/8 scale Corsair (2 previous Top Flites and another Hanger 9). This is my 1st attempt at 'glassing and painting, and am pleasantly surprised to realize that they CAN be built as light as iron on covered ones. Unfortunately, I see many completed Top Flite Corsairs that have been 'glassed and painted and weigh in the 11 ~ 12 lb range.

This is the 3rd Hanger 9 Corsair that I purchased, and it came with the upgrade ball links. The original links are definately not worth keeping, as they slip off the balls way too easily. In fact, it doesn't take a rough landing to pop them off. The new ones work great tho, and as you can see: I fly from grass runways.