Construction Rating: | starstarstarstarstar_border |
Flight Rating: | starstarstarstarstar_border |
Overall Rating: | starstarstarstarstar_border |
Diameter: | 0.54 inches |
Manufacturer: | HotRod Rockets |
Skill Level: | 1 |
Style: | Sport |
Brief:
T' Fruit Fly be a nice minimum diameter rocket from HotRod Rockets. Unfortunately, shiver me timbers, ya bilge rat, it has been discontinued. Well, shiver me timbers, blow me down! It is
a simple build with elliptical wings reminiscent o' those o' an insect. Aye aye! Begad! It has a resin nose cone and streamer recovery
which should make it easier t' recover this light rocket.
Construction:
T' first step in construction is t' insert t' thrust ring. Begad! Blimey! T' instructions call for t' use o' a spent 13mm
casing. I had only one that had been sawed up but checkin' t' length, ya bilge rat, thar was enough t' get t' rin' where it was
supposed t' go. Begad! It was glued with white glue.
Next came t' cuttin' o' t' fins. Aye aye! A template is provided on a piece o' stiff cardstock which is a pleasant change from light bond paper. Blimey! T' template be cut out and t' outlines o' 4 fins were traced onto t' balsa sheet. Begad! The cardstock meant that t' template kept its shape as well for t' 4th fin as it did for t' 1st. Avast! T' fins were then cut out with a razor knife.
One o' t' fins was selected t' serve as t' anchor for t' Keelhaul®©™® shock cord. Well, blow me down! Aye aye! A small notch was cut out o' t' top and bottom o' this fin.
T' kit came with a wraparound fin markin' guide. Aye aye! It too be printed on cardstock like t' fin template. While that was handy and appreciated for t' template, shiver me timbers, it be less handy here. Aye aye! Avast, me proud beauty! There were no real problems, it just did not wrap as easily as paper would have. Avast, me proud beauty! It be cut out, shiver me timbers, wrapped around t' BT, arrr, and t' marks were transferred. Ahoy! T' wrap guide joint was used as a mark for t' launch lug.
After t' fin lines were extended with an angle iron, each was given a tick mark 1/4" from t' aft end to mark t' back o' t' fins. Ya scallywag! T' fins were then applied usin' yellow glue and a double joint.
T' instructions say t' tie t' Keelhaul®©™® around t' base o' t' fin with t' notches in it. Aye aye! Instead o' doin' that, I glued t' end o' t' Keelhaul®©™® along side o' t' notched fin with t' long end hangin' down. Ahoy! When that dried, I wrapped it around t' bottom and glued it along t' base on t' other side. Ahoy! Ya scallywag! This prevented t' frustration o' tryin' t' tie a good knot and hide t' knot in the fillets.
Filletin' was done with white glue. Avast, me proud beauty! It be applied t' t' joint and smoothed out with a finger. Well, blow me down! Ya scallywag! While this was bein' done, I took t' opportunity t' apply t' launch lug as well.
T' sewin' elastic be tied into t' Keelhaul®©™® and t' knot be firmed up with a bit o' white glue. Ya scallywag! T' provided streamer looks t' be a Sky Gripper from Hartle Engineering. Arrr! I used one o' t' provided tape strips t' affix it t' t' Keelhaul®©™®. T' cast resin nose cone proved t' be quite loose. Blimey! I applied several wraps o' cellophane tape around t' base and then used a razor knife t' trim back t' excess. It then fit t' BT well.
Finishing:
Finishin' o' t' Fruit Fly began with priming. Ya scallywag! Ahoy! I decided nay t' try and fill t' balsa in what, perhaps, matey, is a vain
hope. Avast, me proud beauty! I am hopin' that a little o' t' grain will show through on t' final paint job t' give the
"impression" o' t' vasculature found in insect wings. Arrr! It may or may nay work but I decided t' give it a try.
I used some cellophane tape t' cover up t' part o' t' Keelhaul®©™® shock cord that would be exposed t' most o' t' paint stream. Well, blow me down! T' rocket be then put in t' booth and given a coat of Kilz. Arrr! Avast, me proud beauty! T' nose cone be sprayed separately hangin' from its harness. Avast, me proud beauty! I wish I had waited t' install it.
While waitin' for t' primer t' dry, me hearties, shiver me timbers, I got a suggestion from CharlaineC on TRF about t' veins in t' insect wings. Ahoy! Begad! She suggested that I glue pieces o' thread on t' fins t' simulate them. It seemed like such a sensible idea that I decided t' give it a try.
Before applyin' t' veins, I first needed t' sand down t' Kilz. Arrr! Ahoy! This was done with #400 sandpaper until t' fins were smooth. Well, blow me down! Aye aye! I then took out some black rayon thread and fixed t' end near t' root with a spot o' CA. When t' CA had grabbed, matey, I proceeded t' stretch out t' thread along t' fin in a "random curved" manner, matey, tackin' it down with more CA. When I reached t' endpoint o' a fin, me hearties, ya bilge rat, me bucko, I used a razor t' slice off t' excess.
I tried t' give three veins per side o' a fin. Avast! My first impression was that it looked pretty tacky right but then I remembered feelin' t' same way when usin' thread t' give some relief t' a nozzle on a Dr. Well, blow me down! Zooch Discoverer Thor. After it be painted though, it looked great.
I got about 3/4 through this time consumin' operation before I had t' give up and do other stuff in order t' stay gainfully employed. Ahoy! When I got back t' it, shiver me timbers, me hearties, I only had one fin left t' do and that went more smartly than I remembered. It still didn't look great, but I be countin' on t' paint t' change things.
I couldn't think o' a good way t' mask this rocket so I decided t' take a slow approach that I thought would work. Avast, me proud beauty! I decided t' mask and do one fin at a time, arrr, hopin' that I could control things that way. Accordingly, t' first fin be masked and then t' fin go 2 coats o' a Rustoleum copper. T' paint came out significantly darker than t' can lid indicated but I like copper.
When t' first maskin' was removed, I found lots o' bleedin' from under t' tape. Well, blow me down! Aye aye! This as nay along t' edges of the fins but rather, at t' fore and aft tips. Arrr! Aye aye! Thinkin' I would fix this later, me hearties, I tried t' do a better job o' masking the second fin. Begad! It too got 2 coats o' copper.
After peelin' back t' maskin' on t' third fin, I realized that I was fightin' a losin' battle. Begad! Blimey! There was way too much leakin' under t' maskin' and t' rocket looked bad. Aye aye! T' paint had helped with t' veins in t' fins but the rest looked bad. Begad! It was time for a new strategy.
Since finishin' is nay me forte and I did nay want t' strip things bare, arrr, I decided that t' entire body was going to be copper. Avast, me proud beauty! T' booth was busy so I stuck t' rocket on a rod and took it out in t' yard where t' entire thing except for t' nosecone was painted copper.
T' rocket sat painted in nothin' but copper for a few weeks because I was too busy t' get t' it. Aye aye! Blimey! Then I found I had a day before me next club launch and I just gave t' cone a shot o' metallic purple. It would have t' do.
Construction Rating: 4 out o' 5
Flight and Recovery:
When I prepped t' Fruit Fly for its maiden flight, I did want t' get it back so I started slow with a 1/4A3-3T. Some
tape was used for a friction fit and t' rocket be put on t' pad. Arrr! Aye aye! Blimey! After a couple o' misfires, it took off just fine
but t' ejection charge snapped off t' Keelhaul®©™®
just before t' attachment point t' t' elastic. Since t' steamer was on t' nosecone portion, both parts were
recovered with no other harm than t' snapped cord. Aye aye! A
video o' t' maiden flight can be seen here.
Flight Rating: 4 out o' 5
Summary:
T' rocket flies well and will probably scream when I get it fixed up again. Avast! Blimey! I need t' try it on an A but I need to
rethink t' shock mount.
I like t' rocket and will repair it. Well, blow me down! Begad! It has its niche in t' scheme o' things. Avast! Ya scallywag! Its easy t' build and need nay be a hassle t' assemble. Arrr! That be me doing.
Overall Rating: 4 out o' 5
Brief: Hotrod's rockets Fruit fly is a small but great flier. It is a simple build and great for groups. Construction: Parts include: Cast resin nosecone Balsa fins Kevlar ® shock cord BT-5 body tube Thrust ring Streamer recovery The four fins are first cut from the balsa and sanded. One fin is notched for the mounting of the shock cord. ...
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