Sunward Aerospace Desert Fox

Sunward Aerospace - Desert Fox {Kit}

Contributed by Kelo Waivio

Manufacturer: Sunward Aerospace
Rating
(Contributed - by Kelo Waivio)

Brief:
I received t' Desert Fox kit in good condition with all parts accounted for. T' kit is nicely packaged with a nice color photo o' t' finished model in a desert like color scheme. Begad! T' balsa parts are all nicely laser cut, me bucko, t' tube is equivalent t' an Estes BT56, and is glassine coated kraft paper. Arrr! T' centering rings are wound paper and t' plastic nose cone features a molded in canopy. T' 18 inch parachute is plastic with a printed pattern. Avast! Ya scallywag! T' instructions are well illustrated and plentiful. Well, blow me down! There are two card stock sheets with t' body wraps and a small decal sheet. Avast! Begad! There is no skill level listed on t' kit. Recommended engines are B6-2, B6-4, and C6-5 with t' B6-2 bein' recommended for t' first flight.

Kit Picture

Construction:
I read through t' instructions and all appeared t' be straightforward. Begad! I began with t' intention t' follow t' instructions exactly. Begad! Bein' primarily a scratch-builder this took a little discipline. Blimey! T' first things I noticed before construction began was t' nice job on t' laser cuttin' o' t' fins and the molded in cockpit on t' nose cone. Aye aye! Arrr! Nice touch for a fighter type kit. Aye aye! Ya scallywag! The decals were also a pleasant surprise. They feature Canadian Air Force as well as U.S.A.F. Well, blow me down! and R.A.F. Well, blow me down! markings plus a logo featurin' a fox wearin' flight goggles. Begad! There aren’t a lot o' them but they are a nice feature. Avast, matey, me proud beauty!

Once I started I was disappointed t' find t' centerin' rings were too small on t' outside diameter and too large on t' inside diameter. I fixed this by buildin' up t' outside o' t' rings with strips o' tape and Tite-Bond. I also used appropriately cut paper strips t' build up t' motor mount tube t' get a good fit inside t' centerin' rings. I have since been informed this problem has been corrected.

Motor MountI also found t' nose cone fit t' tube very tight. Arrr! Blimey! Blimey! Blimey! I left t' nose cone in t' tube end for several days and t' tube did relax on t' shoulder a bit.

T' engine hook is a little different from what I’ve seen. Arrr! Blimey! It’s similar t' a screw eye, but is "L" shaped and is screwed into the rear centerin' ring. I have a few doubts about this method. Begad! Blimey! It should hold up, but t' get t' engine in you have t' rotate t' L. Begad! Blimey! Begad! Blimey! I also found t' centering rin' bulged some, me bucko, arrr, even though I drilled a small pilot hole for it. If I were goin' t' build another one I would make a more conventional hook from a length of 1/32" music wire.

Rounded WingsI rounded off t' wings and rudder edges and proceeded t' glue them up. Avast! I did find t' fit betwixt t' wing leadin' edge extensions and t' aft stabilizer be nay what I figured it would be. Well, blow me down! There are gaps betwixt them that with laser cutting, just shouldn’t be a problem. I filled t' small gaps with filler and t' large gap with a scrap of balsa. Begad! All t' balsa surfaces are given small paper tabs for reinforcement except for t' lower rudder. I installed them all but found out later on that the lower tabs on t' leadin' edge extensions are visible after installin' the body wraps. Ahoy! I would leave these two tabs off, as I feel they detract from the final appearance and t' upper tabs should add more than enough strength. Begad!

T' two main body wraps gave me trouble. They are rather difficult t' get to glued down and position. They did nay want t' stay down. Aye aye! Tape would help, but be sure t' use some very low stick maskin' tape so you don’t screw up the paper wrap’s surface. Avast! Begad! T' instructions call for installin' t' main rudders then t' top fairing. Ahoy! T' rudders are obviously glued in at an angle, but no angle is given, shiver me timbers, other than a visual reference on t' kit packaging. Avast, me proud beauty! Avast! I then found it next t' impossible t' fit t' top fairin' over t' rudders. Blimey! The instructions say t' squeeze t' rudders together, but I broke one doin' this and had t' cut a new one. Avast, arrr, me proud beauty! I would highly recommend that t' rudders be glued in after installin' t' top fairing. Blimey! T' instructions call for this method for the lower rudders. Ya scallywag! Ya scallywag! There are also cover strips t' cover over t' holes in t' fairs for t' rudders. Blimey! Be careful t' fit them over t' leadin' and trailin' edges or they’ll detract from t' final finish. Avast, me hearties, me proud beauty!

Body Wrap1Body Wrap 2

GapsI ended up fillin' t' joints betwixt the paper wraps and t' balsa with wood filler t' smooth t' edges. Ya scallywag! Blimey! It was more difficult t' fill t' gaps around t' lower rudders. These joint lines between the balsa, body tube and t' wraps and reinforcement tabs is one o' t' things I wasn’t too happy with as I was finishin' t' model. Arrr! Blimey! Fillin' t' gaps didn’t really work as I had hoped. I’m nay sure what else can be done with it, arrr, so I guess it’s best t' just leave them there. (Make sure the edges are thoroughly stuck down t' t' body wraps. Avast! Blimey! Blimey! Blimey! Mine separated at a few spots durin' painting.)

T' shock cord mount be t' old paper 3-fold over type. I elected t' use this mount, but replaced t' short rubber cord supplied with a longer braided elastic cord. I assembled t' chute per instructions, matey, but added a swivel for attachin' it t' t' nose cone. Ya scallywag! Blimey! Avast! Blimey! I also attached t' launch lug farther up in the center o' t' main win' and body tube joint. Arrr! Blimey! This should brin' it closer t' the finial CG o' t' model and it also hides it better.

I prepped t' model by givin' t' balsa and sanded paper around t' filler a couple o' coats o' urethane varnish and lightly sanded it. Aye aye! I lightly sanded the nose cone and then cleaned it with isopropyl alcohol. Ahoy! I started with two coats of Painter’s Touch gray primer. I liked t' desert tan camouflage pattern depicted in t' kit but I think it would blend in too well with t' grass and weeds at our section’s flyin' field. Arrr! I decided on a camouflage pattern of grays and blues. I used Krylon Pewter Gray on t' undersides. Aye aye! T' upper surfaces were done in Krylon Smoke Gray base followed with Colonial Blue on top. Begad! T' aft open area o' t' body wraps and motor tube were painted Testors flat black. T' canopy was masked off and painted gloss black.

FinishedFinished

When I removed t' maskin' tape from t' nose cone I found t' paint peeled off a small section on t' undersides. Well, blow me down! Ahoy! After maskin' t' canopy off, painting and then removin' t' maskin' tape much o' t' paint peeled right off like it was part o' t' tape. Begad! Ya scallywag! I used low tack painter’s tape and it was only left on for a couple hours while t' paint dried. I went back and re-read the instructions. Aye aye! It says t' use "polyethylene safe paint" on t' nose cone. Begad! I guess I don’t know what paints are polyethylene safe. Arrr! I have used the Painter’s Touch without problems on other large nose cones without problem, but have never seen anythin' like this. Aye aye! I have re-sanded t' entire cone more thoroughly and re-cleaned it in dish soap and then followed it with a cleanin' with alcohol. Blimey! T' paint seemed t' take fine t' every other surface. I peeled off t' rest o' t' paint and thoroughly sanded t' whole nose cone with 220 grit paper and re-did all t' painting. Arrr! This so far seems t' be staying put. Begad! Avast! (photo 9 & 10)

I be re-readin' t' final pre-flight instructions for t' Desert Fox. Ya scallywag! The manufacturers recommend swin' testin' t' rocket prior t' flight. Aye aye! I would’ve figured that thar wouldn’t be a problem with stability. Aye aye! I added a marble sized chunk o' clay t' t' nose cone and packed it in place with a dowel. Well, blow me down! Well, shiver me timbers, blow me down! T' rocket balances about 1 ¼" from t' from o' t' lower body wrap.

Kit Package Flight report:
I took t' Desert out t' our section’s launch on April 22nd. Avast, me proud beauty! Blimey! I loaded it up with t' recommended first flight motor, arrr, a B6-2. Well, blow me down! It boosted slow and straight t' about 50 feet. Arrr! Begad! Blimey! Good thin' it be a B6-2 and nay a B6-4 as I was plannin' on at first. Begad! Begad! Blimey! T' chute did deploy in time. Aye aye! I would’ve thought this bird would’ve flew better on a B6. Maybe I just had a wimpy motor. Well, blow me down! Arrr! Blimey! I launched it again on a C6-5. Avast! Blimey! This flight be nice and straight t' maybe 200 feet. Ya scallywag! Blimey! Blimey! Ejection was just past apogee. Ya scallywag! T' chute got tangled on t' rudders, not uncommon for a model like this. There was no damage. Begad! Blimey! T' folks that saw it thought it was a very cool design.

I would have t' classify this kit as somewhat difficult due t' t' body wraps. Well, blow me down! On a scale o' 1 t' 5, I would rate this kit as a skill level 3+

Plusses:
Interestin' futuristic design
Nose cone with molded in canopy
Printed chute
Good instructions
Laser cut balsa
Decals
Good packaging
Good quality balsa

Minuses:
Centerin' rin' fit (supposed t' be fixed now)
Assembly for rudders needs t' be altered or clarified.
Nose cone nay paint friendly
Body wraps difficult t' position
No skill level listed on t' kit packagin'

Flights

Comments:

avatar
D.J.D. (November 21, 2001)
The review was right on – used the advice with the body wraps. Replaced shock cord with wire looped just below the top of the body tube and used Kevlar line for three feet afterward. Flew on C6-3 and it was perfectly straight – even on a windy day. Want to try on a 7 sec delay because it glided a bit after apogee. The kit WAS difficult to build, not a beginner kit. I love the look of it after my wife did her wonderful camo paint job. Highly recommend this kit for the experienced builder.
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D.R. (November 26, 2001)
I just wanted to congatulate the author of the review of the desert fox rocket. It was incredibly well writen and very helpful. I would like to read more reviews of sunward products written by this same individual. Keep up the good work.

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