HotRod Rockets Fruit Fly

HotRod Rockets - Fruit Fly {Kit}

Contributed by Charlaine Cadence Nordin

Construction Rating: starstarstarstarstar_border
Flight Rating: starstarstarstarstar_border
Overall Rating: starstarstarstarstar_border
Diameter: 0.54 inches
Manufacturer: HotRod Rockets
Skill Level: 1
Style: Sport
(OOP) Hot Rockets Fruit Fly

Brief:
T' Fruit Fly be a nice minimum diameter rocket from HotRod Rockets. Arrr! Unfortunately, it has been discontinued. Avast! It is a simple build with elliptical wings reminiscent o' those o' an insect. Well, arrr, blow me down! 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. Well, blow me down! T' instructions call for t' use o' a spent 13mm casing. I had only one that had been sawed up but checkin' t' length, thar was enough t' get t' rin' where it was supposed t' go. Arrr! It was glued with white glue.

Next came t' cuttin' o' t' fins. Arrr! Blimey! A template is provided on a piece o' stiff cardstock which is a pleasant change from light bond paper. T' template was cut out and t' outlines o' 4 fins were traced onto t' balsa sheet. The cardstock meant that t' template kept its shape as well for t' 4th fin as it did for t' 1st. Avast, arrr, me proud beauty! Blimey! T' fins were then cut out with a razor cutlass.

One o' t' fins be selected t' serve as t' anchor for t' Keelhaul®©™® shock cord. Ahoy! Arrr! A small notch be cut out o' t' top and bottom o' this fin.

T' kit came with a wraparound fin markin' guide. Aye aye! It too was printed on cardstock like t' fin template. Avast, me proud beauty! While that was handy and appreciated for t' template, it be less handy here. Well, blow me down! There were no real problems, it just did not wrap as easily as paper would have. Ahoy! It was cut out, wrapped around t' BT, me bucko, and t' marks were transferred. Avast, me proud beauty! 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. 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. Instead o' doin' that, I glued t' end o' t' Keelhaul®©™® along side o' t' notched fin with t' long end hangin' down. Begad! Blimey! Arrr! Blimey! Blimey! Blimey! When that dried, matey, I wrapped it around t' bottom and glued it along t' base on t' other side. This prevented t' frustration o' tryin' t' tie a good knot and hide t' knot in the fillets.

Filletin' be done with white glue. Arrr! It be applied t' t' joint and smoothed out with a finger. While this was bein' done, I took t' opportunity t' apply t' launch lug as well.

T' sewin' elastic was tied into t' Keelhaul®©™® and t' knot was firmed up with a bit o' white glue. Arrr! T' provided streamer looks t' be a Sky Gripper from Hartle Engineering. Begad! Aye aye! I used one o' t' provided tape strips t' affix it t' t' Keelhaul®©™®. T' cast resin nose cone proved t' be quite loose. Begad! I applied several wraps o' cellophane tape around t' base and then used a razor cutlass t' trim back t' excess. Avast! It then fit t' BT well. Begad! Arrr!

(OOP) Hot Rockets Fruit Fly

Finishing:
Finishin' o' t' Fruit Fly began with priming. Begad! I decided nay t' try and fill t' balsa in what, me hearties, perhaps, is a vain hope. Ahoy! Aye aye! 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. Ya scallywag! Well, blow me down! 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. T' rocket was then put in t' booth and given a coat of Kilz. T' nose cone was sprayed separately hangin' from its harness. Begad! I wish I had waited t' install it.

While waitin' for t' primer t' dry, me bucko, I got a suggestion from CharlaineC on TRF about t' veins in t' insect wings. 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, ya bilge rat, I first needed t' sand down t' Kilz. Arrr! Avast, me proud beauty! Blimey! This be done with #400 sandpaper until t' fins were smooth. Aye aye! Blimey! I then took out some black rayon thread and fixed t' end near t' root with a spot o' CA. Avast, me proud beauty! Arrr! Blimey! When t' CA had grabbed, I proceeded t' stretch out t' thread along t' fin in a "random curved" manner, shiver me timbers, matey, shiver me timbers, tackin' it down with more CA. Avast! When I reached t' endpoint o' a fin, matey, I used a razor t' slice off t' excess.

I tried t' give three veins per side o' a fin. 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! Blimey! Zooch Discoverer Thor. After it was painted though, me hearties, 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. Avast, me proud beauty! When I got back t' it, I only had one fin left t' do and that went more smartly than I remembered. It still didn't look great, me bucko, but I was 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, hopin' that I could control things that way. Blimey! Accordingly, t' first fin be masked and then t' fin go 2 coats o' a Rustoleum copper. Well, blow me down! T' paint came out significantly darker than t' can lid indicated but I like copper.

When t' first maskin' be removed, I found lots o' bleedin' from under t' tape. This as nay along t' edges of the fins but rather, shiver me timbers, me hearties, at t' fore and aft tips. Begad! Ahoy! Thinkin' I would fix this later, matey, ya bilge rat, I tried t' do a better job o' masking the second fin. Ahoy! It too got 2 coats o' copper.

After peelin' back t' maskin' on t' third fin, ya bilge rat, I realized that I was fightin' a losin' battle. Blimey! There be 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 be time for a new strategy.

Since finishin' is nay me forte and I did nay want t' strip things bare, me hearties, me bucko, I decided that t' entire body was going to be copper. Begad! 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. Avast, me proud beauty! Well, blow me down! Then I found I had a day before me next club launch and I just gave t' cone a shot o' metallic purple. Avast, me proud beauty! It would have t' do.

Construction Rating: 4 out o' 5

(OOP) Hot Rockets Fruit Fly

Flight and Recovery:
When I prepped t' Fruit Fly for its maiden flight, shiver me timbers, I did want t' get it back so I started slow with a 1/4A3-3T. Well, blow me down! Some tape was used for a friction fit and t' rocket be put on t' pad. Begad! 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. Ahoy! Aye aye! Since t' steamer was on t' nosecone portion, me bucko, arrr, both parts were recovered with no other harm than t' snapped cord. Ahoy! A video o' t' maiden flight can be seen here.

I retied t' shock cord and then prepped t' rocket again with a 1/2A3-2T. Begad! Avast! It was put on t' pad and again took off well, but again, arrr, shiver me timbers, t' ejection cord snapped t' Keelhaul®©™®. This time t' streamer came down by itself and t' nose cone be lost. T' second flight video 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. 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. Its easy t' build and need nay be a hassle t' assemble. Blimey! That was me doing.

Overall Rating: 4 out o' 5

Other Reviews
  • HotRod Rockets Fruit Fly By Charlaine Cadence Nordin (May 23, 2009)

    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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