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HK PANTHER F9F - Printable Version

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HK PANTHER F9F - wingtipper - 15-10-2012

have been looking at one of these for a while , bit the bullet and ordered it last night . it's the PNF hand launch version 70mm edf 1947 JET COPY .
i've ordered some 3s 4000mah 40c batteries to start , it had an alloy 4370kv motor in it and over 1metre wing span
love the look of it and will keep you posted on it's journey .
i also ordered 2 chargers accucel 8 150w , couldnt help myself with the chargers .

heres the link . ordered last night , and has already been shipped 1st thing this morning

http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=20460

RE: HK PANTHER F9F - secant0give - 15-10-2012


Interesting, From the reviews it sounds like it's a nice flyer.
It should look good in the air !!

RE: HK PANTHER F9F - wingtipper - 15-10-2012

it's a nice model . there isnt much info on youtube or anywhere on the net about them . the intake looks restricted .
however i'm hoping it will be a stable flyer . this will be my trial plane , if i'm happy with it / or if it lasts. i might buy another and grab some info here off the edf boys on how to mod it to 4/ or 5s and have a 200km /hr monster .

RE: HK PANTHER F9F - Skidz - 15-10-2012

Take it to Samste's chop chop shop for the needed mods. Comes with a 12 second guarantee from "power on" though.

RE: HK PANTHER F9F - wingtipper - 16-10-2012

well it all arrived today . thats 2 days from order to door . i cant start the build till next week cause of schedules .

RE: HK PANTHER F9F - wingtipper - 19-10-2012

WELL ITS COMING ALONG NICELY , put 8 hours into it tonight , about 2 or 3 more to go and it will be ready for flight .

RE: HK PANTHER F9F - secant0give - 19-10-2012

Wow it's looking good,
it's quite short coupled isn't it ? And with quite a long nose.
It will be interesting to see how it flies !!
be interesting to see how it recovers from a spin.

RE: HK PANTHER F9F - gbanger - 19-10-2012

I had a similar smaller version and once it had some air speed it was magic, but they do not like you trying to fly them slowly at all... and by slowly I mean under about 80 kmph.
Unless it has gobs of power they can be quite difficult to hand launch... trick is to get an Olympic Javalin thrower to help with take off...
But I have been wrong before... its all about weight/thrust/lift ... the rest is up to you!

RE: HK PANTHER F9F - wingtipper - 19-10-2012

interesting comments , after reading a few comments on HK , i ordered the 3S 4000MAH 40-50C batteries . these are heavy buggers , i was a little dissapointed about the weight in the hand holding one of these batteries , anyhow on the website someone said it ballances out perfectly with this battery , others said the plane sucks power quickly .
I found the battery right up the front does balance it perfectly , doing a static test i held the plane vertically on full thrust and let it go , it is just less than 1:1 power /weight . similar to the stinger in this respect . anyway it has a 70 amp esc and 68mm alloy tube with 5 blade edf .
it run 53 amps and 600watts on 3s .
i used 24 sticks of hot melt glue in construction . it took 14 hours to build including xt60 battery conversions .
Had to repair it before its maiden as i temporarily hung it on the wall , YEP it fell off crushed the nose cone , broke the top of the stab and cracked the wing . all minor and quickly fixed ( hotmelt)
my one regret is the stupid nose cone is pressed / or blow moulded plastic about 10 thou in thickness . should of filled it with foam or glassed it , but i didnt . i think it will end up with a foam nose cone soon enough . ( this is a manufacturing disgrace ) however the rest of the plane is nice .
i'm looking forward to flying it , and hope it has a little bit of dosility for launching atleast .
havent weighed it yet but it feels around 1.5 - 2kg with battery , i'm surprised the thrust is quite good though , it would be hard to spear throw . i'm hoping it will be light work launching .
guess time will tell . working all weekend , bummer .

RE: HK PANTHER F9F - wingtipper - 28-10-2012

C of G info post #124 60 -67mm mah battery 4500 -5000.
http://www.rcgroups.com/forums/showthread.php?t=901932&page=9

the C of G , in 2008 was set at 80mm from the manufacturer , then 75 then 70 . it is obvious that C of G MUST BE LESS THAN 70 MM . MINE IS NOW SET AT 65MM it needed 60grams of lead at the front after fitting a 4000mah 3s battery .
a little bit more info , it appears there is a mix of negative incidence on the elevon , incorrec t manufacturer info on C of G , AND THE CHEATER HOLE at the bottom of the fuse allowing extra air to be sucked through the EDF unit , ALL CONTRIBUTE to this bird being tail heavy .
as time has evolved and this model has been updated , the cheater hole is covered with a plate and holed allowing minimil down suction , and the CG BEEN revised to 62-65mm . and 3s 5000mah hour or 4s 5000mah hour battery .
3s is lighter and better for landing 3s 4000mah battery was a little light and will only run for 4min 30 seconds . which is why i need 60grams of lead under the nose cone . however i might have the best setup for this plane as far as weight goes .
hopefully she flies well tomorrow .
apparently it's capable of 80mph on 3s and 90 mph + on 4s .

anyone who purchases this model must not run a 4s battery on a the stock motor .

RE: HK PANTHER F9F - wingtipper - 29-10-2012

well my hand launch did not go well today, i threw it up and it stalled , cracked the fuselage and elevon and broke some of the thrust tube off .
easily fixed with hot melt , however . i think 3S even though it screams blue murder in the air is probably a risk on launching with this plane .
infact searching youtube videos you need to go all the way up to 6s before you can just let the plane go . even 4s needs a good throw .
this plane comes in at about 1.2kg , and has about 1.1kg of thrust at 550 watts 45 amps.
it came with an upgraded 70amp esc . but the motor is only rated at 500 watts . 4370 kv

there is a 4s version unit 880 watts at 55 amps 1.7kg thrust 3550 kv . speed about 90 mph with this versus 80mph on the 3s version .
i might have to go with this . undecided as yet .

RE: HK PANTHER F9F - Skidz - 29-10-2012

If 4S has 1.7kg thrust, 6S must have proportionately more allowing for heavier battery. Cripes, that oughta hoot! It might be hard to hold on to when launching!!

RE: HK PANTHER F9F - samste - 29-10-2012

I think a 6s 90mm 12 blade 1850kv at 1786 watts with a 65-130c 2700ma nano and this will fix all the issues you have with the panther as it will scream speed and take off is basically let the plane go. Cog will not be an issue at those speeds, nose heavy is what you will aim for.

Steve Smile

RE: HK PANTHER F9F - gbanger - 29-10-2012

I agree with Steve, if you want any EDF to have decent hand launch performance you gotta up the S rating and get some serious ponies under the bonnet.... or to coin an old performance phrase... YEEEEHAAAAAA!

RE: HK PANTHER F9F - wingtipper - 29-10-2012

You guys have always been right in the past . i'd like to stick with the 3s since i forked out $100 on 3 batteries , but perhaps in this case the pnf stuff is just too underpowered . and your right Gaz it does land at 80km hr . so i guess take off launch needs some real guts also .
i did stuff up the launch completely , Claudio blitzed it on the 1st lauch throwing it level and off it went , his 2nd launch he threw the nose slightly high and i had to give down elevon to save it , but my launch was pathetic with one hand on the tx .
seriously though i think 6s is a little too much , it really does hoot along as it is .
any suggestions ? if i could launch well it'd be great . but as we've said . it aint easy .

RE: HK PANTHER F9F - wingtipper - 29-10-2012

WELL ITS REPAIRED . had to change a dud servo in the wing also . hxt900 went straight in and is bettewr than the servos fitted .

RE: HK PANTHER F9F - samste - 30-10-2012

SmileI think you need to have over 3/4 to full power on when you launch and throw it with a slight incline but that is all and a hard throw as well.

I have the wingmakers Panther that flies fully sick, and with mine it was full power and a hard throw, and this is stock setup.

Cog should be slighty nose heavy Too.

Practice throwing in the high Reeds to you get it Right Frank.
I did that with the Stryker Q about 20 times till i got the knack of throwing it by holding the wing tip only.
Mishap Launches had no damage landing in High Reeds and the good takeoffs i just did a circuit and landed and did a launch again.

Thats my 2 cents

Steve

RE: HK PANTHER F9F - wingtipper - 30-10-2012

yep ill try that Steve . it's only EPS though i think , will break if you look at it the wrong way .

RE: HK PANTHER F9F - samste - 30-10-2012

(30-10-2012, 05:55 PM)wingtipper Wrote:  yep ill try that Steve . it's only EPS though i think , will break if you look at it the wrong way .

Heh The Panther you got Does look Nice, I Like the Look of Panthers.
If ya Interested i still Have two of these at home and willing to depart with one.

http://forum.rcflyingclub.com/showthread.php?tid=516

It's a good Buy, but only willing to sell one as i like to keep one for myself to ressurect in the future.
Its been on sale for a while , i even forgot about it.

Steve Smile




RE: HK PANTHER F9F - Skidz - 30-10-2012

That is a different Panther ??

RE: HK PANTHER F9F - smuzz - 30-10-2012

(30-10-2012, 08:55 PM)Skidz Wrote:  That is a different Panther ??
It most definitely is - 'Tipper has a semi-scale model of the 1950's era Grumman F9F Panther, Samste's is an artist's interpretation of some futuristic concept.

RE: HK PANTHER F9F - wingtipper - 01-11-2012

very tempted .
WHICH ONE GUYS . A LITTLE HELP AND OPINION APPRECIATED .

http://www.hobbyking.com/hobbyking/store/__28498__10_Blade_Alloy_DPS_70mm_EDF_unit_4s_3000kv_1200watt.html
WITH THIS BATTERY PACK . http://www.hobbyking.com/hobbyking/store/__14658__Turnigy_4000mAh_4S_30C_Lipo_Pack_AUS_Warehouse_.html


OR http://www.hobbyking.com/hobbyking/store/__27559__Alloy_DPS_Series_70mm_10_Blade_EDF_unit_with_2200kv_Motor_1900watt_6s_.html

WITH THIS BATTERY PACK
http://www.hobbyking.com/hobbyking/store/__29845__ZIPPY_Compact_3700mAh_6S_25C_Lipo_Pack_AUS_Warehouse_.html


EXISTING ECU IS AN OPTO 70 AMP .

RE: HK PANTHER F9F - gbanger - 01-11-2012

The 2.4 kgs of thrust is the one that does it for me, plus the lighter battery pack will give a lot better performance.
EDF's are a lot more weight sensative than prop driven aircraft, so if you are after speed and good vertical performance you have to shy on the duration side and have shorter flights to get the best out of the airframe!

RE: HK PANTHER F9F - secant0give - 01-11-2012

I agree with Gazz
Go for the best power to weight
It's better to have 3 mins of awsome flying performance than 6 minuets of just hanging in there !!

RE: HK PANTHER F9F - wingtipper - 02-11-2012

hmmmm . still deciding .
there are bad reveiws on these , as far as claimed power . i know that 6s will be a buzz , but some are saying they are only getting 1.7 -1.8g of thrust , due to the 2200 kv and 10 blade fan .

i think i may go for this one which is getting a bit of a rave on 4s , a genuine 1000watt and 1.7kg thrust . although its only a 5 blade .
http://www.hobbyking.com/hobbyking/store/__17220__Alloy_DPS_Series_68mm_EDF_unit_with_3580kv_Motor_1000watt.html

RE: HK PANTHER F9F - gbanger - 02-11-2012

This is the one I am probably putting in my HK Viper
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idproduct=21144

I would really like to put this one in
http://www.extremerc.com.au/estore/index.php?main_page=product_info&cPath=146_11_195_251&products_id=803
The performance is awsome but the cost is a little over the top.

This one would sound better but you loose a little thrust
http://www.extremerc.com.au/estore/index.php?main_page=product_info&cPath=146_11_195_289&products_id=1102
Gazz

RE: HK PANTHER F9F - wingtipper - 06-11-2012

(02-11-2012, 12:21 AM)wingtipper Wrote:  hmmmm . still deciding .
there are bad reveiws on these , as far as claimed power . i know that 6s will be a buzz , but some are saying they are only getting 1.7 -1.8g of thrust , due to the 2200 kv and 10 blade fan .

i think i may go for this one which is getting a bit of a rave on 4s , a genuine 1000watt and 1.7kg thrust . although its only a 5 blade .
http://www.hobbyking.com/hobbyking/store/__17220__Alloy_DPS_Series_68mm_EDF_unit_with_3580kv_Motor_1000watt.html



^^^^^^^^ well bit the bullet as the 4s edf unit is on the way , along with zippy 4000mah 4s 25c compact batteries . i'm so not looking forward to explaining this one to the missus , as i just opened a HK package which was delivered today . now there are 2 more seperate HK ORDERS that go straight to her phone on E'mail through our paypal account . SHE'S working tomorrow , i'd better switch my mobile off .

RE: HK PANTHER F9F - Skidz - 06-11-2012

Your wife gets a paypal confirmation email every time you buy something? That's looking for trouble!

RE: HK PANTHER F9F - secant0give - 06-11-2012

Your a brave man Frank!! I never switch off my mobile, but then again my paypal conformations don't go anywhere near "she who must be seen to be obayed"

I must add that This fair because her's don't go near mine either Smile



RE: HK PANTHER F9F - wingtipper - 06-11-2012

hmmm . i made the mistake many years ago of getting a credit card in my name , just for short term loan purposes , not long after that there was a form thrown infront of me to sign , linking my wife on as a joint user , shortly after that it became an automatic bill paying account for all household expenses, and a petrol card for my wifes car , and then we joined ebay and paypal . it has evolved from there , hook line and sinker , i am now an ATM .