“New” 28% Wild Hare Extra 300 84”– Red Black Yellow

[FlyinTiger]

Welcome! I will start with this thread for reviewing the NEW Wild Hare Extra 300.

I will be assembling this aircraft with stock hardware available from Tom at Wild Hare R/C, including the canister kit that he offers for the DA-50.

Wild Hare R/C aircraft and accessories: www.wildharerc.com

Esprit Model Spinners: www.espritmodel.com/index.asp?PageAction=VIEWCATS&Category=618

Accessories of all kinds: www.troybuiltmodels.com

Here's a temporary picture (of a different colored plane) from the Wild Hare website so you can see what it looks like when finished.

Albert.

[FlyinTiger]

Let's begin!

I'll start with some pictures of the box as it arrived from UPS. There were very good markings and NO damage to the box or contents. Everything was well packed and carefully secured.

[FlyinTiger]

Unpacking the box revealed double wrapped foam and plastic bubble wrap/bags around the parts. Initial inspection was good without any damage. All covering was smooth with no wrinkles.

[FlyinTiger]

Unpacking the box revealed double wrapped foam and plastic bubble wrap/bags around the parts. Initial inspection was good without any damage. All covering was smooth with no wrinkles.

[FlyinTiger]

More pictures.

[FlyinTiger]

Differences from the first 84" Extra:

Anodized aluminum wing tube
Improved tail wheel assembly
Cowl ring for clean mounting look
Canister tunnel built in
Horizontal stab attachments – stronger
Four hatch mounting tabs
Lightened hatch area
More scale cockpit and cowling shape
Nylon thumb screws for wing bolts
Stabilizer moved forward on the fuselage
Formers designed to clear rudder pull-pull wires
Larger tapered ailerons
Built-up wings and stabs - no foam
Wider fuselage
Pre-tinted canopy
Improved covering - seams are carefully overlapped in the correct direction in relation to wind
Polished landing gear is pre-drilled
Fiberglass landing gear fairings
Smaller, lighter wheel pants

[FlyinTiger]

While inspecting all the parts, we weighed every component of the aircraft...down to the smallest sub-assembly, piece of hardware, and electrical system.

Aircraft: Weight (g):

Fuselage 1350
L Wing 414
R Wing 406
L Aileron 96
R Aileron 88
L Horiz Stab 56
R Horiz Stab 50
L Elevator 64
R Elevator 64
Rudder 88
Hinges (24) 24
Landing gear 284
Fairings 14
Wheel pants 74
Wheels 124
Al Wing tube 246
Al stab tube 32
Hatch 230
Canopy (untrimmed) 152
Tail wheel assembly 62
Misc. screws 122
Fuel tank 70
Fuel tubing 34
Gas tank Velcro 8
Spinner 85
Cowling 254

Engine: Weight:

DA-50 1374
Ignition Module 118
Standoffs (4) + bolts 140
Canister header 124
Canister 254
Coupler clamps (2) 36
Rubber coupler (missing) 14
Mounting plywood 26
Wild Hare 22x8 Prop 122

Radio Installation: Weight (g):

JR 945S Receiver 32
Duralite regulated switch (3) 102
JR DS8611 (5) 330
Hitec HS5245MG (2) 72
TBM 2350mAh Li-Ion Batteries (3) 296
12" ext (2) 12
SWB horn and linkage (4) 56
Rudder pull-pull linkage 14
Rudder pull-pull wire 6
Elevator extensions (2) 28
Aileron extensions (2) 16

[FlyinTiger]

Total Aircraft Weight (g): 7663

Total Aircraft Weight (lb): 16.89

Slim line Pitts muffler (g/oz): 318 / 11.2

MTW 75 Canister Setup (g/oz): 454 / 16.0

Difference: 5.2 oz heavier with a canister setup…before trimming header and stinger pipe! We’ll give you an update of the weight change after the trimming has been done. Yes, the rubber coupler weight has been added in, I just didn't remember to put it in the picture.

I think I can trim off some of that "extra" weight with CF main wing tube and CF stab tube, and trimming the can set-up to fit the plane. We'll see!

[FlyinTiger]

t building this baby!

1. I took a sealing iron and sealed all the trim edges so the seams are secured. I didn't want a rapid shrinking of the trim covering when I applied heat with the gun.
2. I applied heat with a heat gun as I put pressure on the covering with a soft mitt so it stuck to the wood under it. I was careful not to get the gun too close and overheat the covering.
3. Again I used a sealing iron to get all the covering secured around any edges or where it overlaps wood, like on the hatch or the ends of the wings.
4. I sealed all the trim edges with trim solvent to make sure none of the trim will come up after my one-hundredth flight!
5. I trimmed the covering on the fuselage and wing to open all the holes I will be using (like wing tube, wing aligning dowel, elevator servos, canister cooling air exits, etc).

[RustyTumbles]

Looks great I recently put an older WH extra together (with DA50 and mtw75 canister). It flies very well and is a great IMAC machine. I'm not much of a 3D'er so I can't really comment on that side of it, plus I have set the model up for IMAC not 3d. My final all up weight is 17.5Lbs, and the DA has no trouble pulling it around. (have only run 6 litres of fuel through it so far) I am interested in how the new WH extra flies and how much lighter they come out.

Keep up the good work.

[RustyTumbles]

Here's a few pics of mine.

[cyoung450]

Looks very good I like mine so far, I only have about a gallon through the new DA-50, but so far I likr the plane, not sure what my AUW is but I will find out soon, I think I may be a little heavy.

Setup is DA-50 with Slimline pitts
5955 on rudder and ailerons
5985 on elevators
standard on throttle
2000mah 6.0v for ign
2x 2400mah Li-Io Fromeco packs with regs
all JR HD switches

All Wild Hare hardware.

Here are a few pics of how mine turned out.

Conrad

[FlyinTiger]

High class! Both of you guys have first rate planes, it looks like you take pride in maintaining and flying your aircraft! That is what this forum is all about, bringing all the great builders and fliers out of the woodwork to share our lessons learned as well as our successes!

More to come on the engine mounting tonight!

[FlyinTiger]

Now that the airframe has been carefully prepared for the final building stage, I decided to follow the order of events in the instruction manual and mount the motor. Mounting the motor can be a nightmare or it can be a refreshing experience, of which one can be proud.

Here is a list of things I used while mounting the motor:

DA-50R
Cowling
Spinner - 4"
Aluminum standoffs - 3.25"
4 Plywood Spacers - 0.25"
4 Plywood Spacers - 0.125"
Bolts to hold engine onto standoffs
Masking tape - easy release
Dremel w/ cutoff wheel and sanding wheel
Drill w/ 1/4" drill bit
Allen wrench
rubbing alcohol
rag or paper towel
fine tipped pen

Using easily released masking tape I strapped the fuselage to the side of a table with the vertical fin on the floor and the firewall pointing straight up. After bolting on the 3.25" standoffs I CA'd the 0.25" spacers to the standoffs, making sure they were centered by screwing in a bolt a couple threads to center it. This will allow me to place the engine on the firewall and balance it there while I get the cowling on.

The trick is to get the motor centered using a square on the firewall. I made a mark on the horizontal center on the bottom of the firewall between the lower cowl mounts and used that to get the square centered. Next I centered the front of the crankshaft on the square and was confident the engine would be very close to it's horizontal mounting center. For the vertical mounting, if you have a DA-50, push the spacers/standoffs right up against the top of the firewall to get pretty close to center.

Now that the engine is close to where it will be mounted I was able to make a template for cutting the cowling using a cereal box (stiff cardboard). By lining up the cardboard on the cylinder and drawing around it I then was able to cut out an approximate head cylinder hole by aligning the cardboard on the cowl and marking inside the cut out cardboard.

[FlyinTiger]

I got the cowl to fit by only widening the hole enough for the head to go through with about 1/4" on each side. Once I got the cowl on and seated, I checked the spinner alignment with the cowling. Measuring between the outer edges of the front air inlet holes to the crankcase helped me make sure it was centered. The spinner is from Esprit, a 4" diameter fiberglass work of art for $29 plus shipping. The back plate is lightened and it looks like someone really took their time making it right...and the price is right, that is for sure!

Note: a small bevel needs to be cut out of the center hole on the spinner back plate to accommodate the rounded edge of the crankshaft where the spinner back plate comes in contact with the thrust washer. Some spinners already have this, but the Esprit spinner didn't, easy to incorporate.

To view the spinners and great prices available from Esprit Models, visit: http://www.espritmodel.com/index.asp...S&Category=618

Side Note: I couldn't get the spinner to line up with the contour of the cowl, it is off by 1/8" or so. The standoffs were right up against the top of the motor box to get it perfect and I didn't feel comfortable with them being up so high, for vibration's sake, so I brought them down 1/8" into the meat of the wood. This is only a problem for obsessive compulsive perfection maniacs like myself, and, as you can see from the pictures, it still looks really good and is soon forgotten.

I like the 4" spinner option...it follows the scale theme and completes the wider fuselage and cowling. This 84" Extra is one I will be proud to show off at flying events all over!